Register or Submit a manuscript.
Table of Content

Open Access Review

Current Advancements in the Behavior Analysis of EPDM Elastomers in Peripheral Applications of the Cathodic Side of PEMFC Systems

Received: 30 June 2024;  Published: 04 November 2024;  doi: 10.21926/rpm.2404026

Abstract

This review examines the latest developments in the study of how Ethylene Propylene Diene Monomer (EPDM) elastomers behave in peripheral applications of Proton Exchange Membrane Fuel Cells (PEMFCs), specifically on the cathodic side. The review highlights the crucial role of EPDM in maintaining the integrity and efficiency of PEMFCs in challenging conditions characterized by varying temperatures, humidity, and acidic environments. The study examines the impact of various additives and vulcanization procedures on EP [...]

1004 9074

Open Access Review

Research Progress in Enhancing Proton Conductivity of Sulfonated Aromatic Polymers with ZIFs for Fuel Cell Applications

Received: 22 June 2024;  Published: 04 November 2024;  doi: 10.21926/rpm.2404025

Abstract

The escalating global temperatures and their adverse effects underscore the growing imperative for the widespread adoption of clean fuels, notably hydrogen. Proton Exchange Membrane Fuel Cells (PEMFC) emerge as a pivotal green energy technology, facilitating electricity and water generation. The optimization of PEMFC efficiency hinges on the judicious selection and fabrication of polymer membranes. Within innovative materials, Zeolitic Imidazolate Frameworks (ZIFs) represent a novel subclass within the expansive fa [...]

1372 10839

Open Access Review

Emerging Trends in Engineering Polymers: A Paradigm Shift in Material Engineering

Received: 30 June 2024;  Published: 30 September 2024;  doi: 10.21926/rpm.2403024

Abstract

Emerging Trends in Engineering Polymers signify a pivotal transformation in material engineering, marking a departure from traditional materials towards innovative, multifunctional, and sustainable polymers. This review delineates the forefront of advancements in polymer materials, including high-performance, bio-based, biodegradable, innovative, and functional polymers. Highlighting their enhanced mechanical properties, thermal stability, and chemical resistance showcases these materials' pivotal role in driving t [...]

3607 37582

Open Access Review

Revolutionizing Infrastructure Development: Exploring Cutting-Edge Advances in Civil Engineering Materials

Received: 04 July 2023;  Published: 26 September 2024;  doi: 10.21926/rpm.2403023

Abstract

This study addresses the evolving challenges in infrastructure development by exploring recent advancements in civil engineering materials. The problem lies in the limitations of traditional materials such as concrete and steel, which, while foundational, may not fully meet the demands of modern construction in terms of sustainability, durability, and resilience. The objective of this review is to assess the role and impact of both traditional and emerging materials, including supplementary cementitious materials, [...]

1589 11310

Open Access Review

Nanomedicine: Pioneering a New Frontier in Neuro-Ophthalmology

Received: 23 April 2024;  Published: 29 August 2024;  doi: 10.21926/rpm.2403022

Abstract

Nanotechnology is one of the most promising fields of study, and it represents a pioneering leap in science and technology by the precise control over materials at the atomic and molecular level. This transformation affects numerous aspects of modern human life, including medicine, healthcare, electronics, computing, and energy storage. Nanotechnology has shown significant advancements in managing various health problems through different nano-formulations. These engineered nano-systems can be used as drug delivery [...]

1349 7163

Open Access Original Research

Obtaining of WC–Co- and WC–TiC–Co-Based Ultradispersive Alloys Modified with B4C–TiB2 Quasieutetic

Received: 21 March 2024;  Published: 26 August 2024;  doi: 10.21926/rpm.2403021

Abstract

Tungsten carbide WC-based materials characterized by high hardness and wear resistance have long been widely used in manufacturing cutting and mining tools. They are alloyed or modified with different ceramic phases to improve operational characteristics further. There are obtained the hard tungsten carbide–cobalt WC–Co and tungsten carbide–titanium carbide–cobalt WC–TiC–Co metal-ceramic alloys ultradispersed powders modified with quasieutectic ceramic alloy B4C–30wt.%TiB2 [...]

1583 11646

Open Access Original Research

Influence of Thermal Environment Conditions on Mechanical Properties of MEX Printed 17-4 PH Stainless Steel

Received: 18 February 2024;  Published: 22 August 2024;  doi: 10.21926/rpm.2403020

Abstract

This study investigates the influence of thermal environmental conditions during printing and their effects on the mechanical properties of material extrusion (MEX) 3D-printed 17-4 PH stainless steel. Various ambient temperatures and cooling behaviors were used during the printing process of the tensile specimens. Following DIN EN ISO 50125 and DIN EN ISO 6892, the study analyzes tensile strength, elongation and yield strength. The results demonstrate that the thermal environmental conditions affect both tensile an [...]

769 5709

Open Access Original Research

Sustainable Concrete with Zero Carbon Footprint

Received: 15 April 2024;  Published: 09 August 2024;  doi: 10.21926/rpm.2403019

Abstract

This paper describes a method to use solely recycled and by-product materials as constituents to form concrete that can be used in buildings structural applications. As concrete is one of the most important materials in human civilization, where it is used widely in construction, cement and aggregate the main components of concrete cause an emission of large amounts of carbon dioxide, which is the main cause of global warming. The production of one tonne of cement, for example, causes the emission of about 800 kg o [...]

1066 9197

Open Access Original Research

Construction and Evaluation of a Modular Anthropomorphic Phantom of the Skull with an Exchangeable Specimen Jar to Optimize the Radiological Examination of Temporal Bone Pathology

Received: 26 March 2024;  Published: 25 July 2024;  doi: 10.21926/rpm.2403018

Abstract

To develop a modular anthropomorphic phantom to evaluate the performance of radiological techniques for detecting pathologies in the temporal bone region. A phantom was constructed using a human skull, temporal bone specimen, and 3D-printed contour of a human skull. The human skull was embedded in tissue-equivalent plastic, with a cavity to hold the plastic jars containing the exchangeable freshly frozen human temporal bones. Subsequently, stepwise introduction and examination of different clinicopathological scena [...]

888 4786

Open Access Review

Impact of Pernicious Chemicals on Geopolymer and Alkali-Activated Composites Incorporated with Different Fiber Types: A Review

Received: 27 March 2024;  Published: 22 July 2024;  doi: 10.21926/rpm.2403017

Abstract

Over the past decade, developing geopolymer mixes to replace ordinary Portland Cement (OPC) composites has yielded positive results, leading to extensive research. The incorporation of fibers in geopolymers, besides impacting the mechanical properties, has also significantly impacted durability, mainly when dealing with the most pernicious forms of deterioration resulting from chloride attack, water penetration, sulfate attack, acid attack, as well as freeze-thaw, which occurred through chemical transgression. This [...]

1073 11213

Open Access Research Article

Spark Plasma Sintering of Cu-Ti-Ni Ternary Alloy: Microstructural, Thermal and Electrical Properties

Received: 28 December 2023;  Published: 01 July 2024;  doi: 10.21926/rpm.2403016

Abstract

High strength and good conductivity are both critical parameters for copper-based alloys for electrical and other technological applications. This study is aimed to produce copper alloys and metal matrix composites (MMCs) with enhanced physical properties. Cu-Ti-Ni ternary alloys and MMCs samples were sintered at 600 to 700°C using spark plasma sintering (SPS), with a heating rate of 100°C/minutes, uniaxial pressure of 50 MPa, and a holding time of 10 minutes. Scanning electron microscopy (FE-SEM) was used to exami [...]

896 5477

Open Access Review

Review on Some Important Research Progresses in Biodegradable Plastics/Polymers

Received: 15 March 2024;  Published: 27 June 2024;  doi: 10.21926/rpm.2402015

Abstract

Biodegradable plastics/polymers may serve as a promising solution to the global problem of plastic waste accumulation in oceans and soil and may significantly reduce carbon emissions from the manufacturing process, since the materials used to make biodegradable polymers are carbon-based and emitted during the synthesis processes. This article systematically reviewed the existing and closely related scientific literature on materials, biomaterials, and biodegradable materials to find answers on how to effectively st [...]

1744 24387

Open Access Research Article

Development of the Stochastic Interpretation of Quantum Mechanics by E. Nelson. Derivation of the Schrödinger-Euler-Poisson Equations

Received: 10 November 2023;  Published: 26 June 2024;  doi: 10.21926/rpm.2402014

Abstract

The article aims to develop the stochastic interpretation of quantum mechanics by E. Nelson based on balancing the intra-systemic contradiction (i.e., antisymmetry) between “order” and “chaos”. For the set task, it is proposed to combine two mutually opposite system-forming principles: “the principle of least action” and “the principle of maximum entropy” into one, the “principle of averaged efficiency extremum”. In a detailed consideration of the averaged states of a chaotically wandering particle, the time-indepe [...]

695 10607

Open Access Original Research

The Effect of Rake Angle and Cutting Edge Radius on the Orthogonal Cutting Process of Ti6Al4V Alloy

Received: 23 February 2024;  Published: 18 June 2024;  doi: 10.21926/rpm.2402013

Abstract

This paper investigates the effect of rake angle, α, cutting edge radius, r, and feed rate, f, on the cutting force and cutting zone temperature during orthogonal dry cutting of Ti6Al4V. A numerical model representative of the 2D orthogonal cutting process is developed using ABAQUS/Explicit software. Johnson-Cook, (JC) constitutive material model is used to describe material plasticity. JC damage model and energy-based fracture criterion are used to describe damage initiation and evolution. Using Minitab-19 softwar [...]

1124 7149

Open Access Research Article

Spin Entanglement – A Unifying Principle for Superconductors and Molecular Bonding

Received: 20 December 2023;  Published: 03 June 2024;  doi: 10.21926/rpm.2402012

Abstract

The spin-statistics theorem is generalized to include quantum entanglement. Specifically, within the context of spin entanglement, we prove that isotropically spin-correlated (ISC) states must occur in pairs. This pairing process can be composed of parallel or anti-parallel states. Consequently, the article proposes using ISC states as a unifying principle to explain better Bose-Einstein condensates, the theory of superconductivity, and molecular and atomic orbitals, all of which involve a pairing process. The theo [...]

817 6323

Open Access Original Research

Enhancing Thermal, Viscoelastic, and Mechanical Properties of Silicone Rubber Matrix through Reinforcements for Use as a Medical Implant

Received: 14 December 2023;  Published: 03 May 2024;  doi: 10.21926/rpm.2402011

Abstract

The use of silicone rubber as an implant is limited due to its weak properties. In this study, the impact of various reinforcements, such as TiO2 or SiO2 nanoparticles, carbon, or polypropylene fiber micro reinforcements, on the mechanical, thermal, and viscoelastic properties of silicone rubber composites with RTV-4125 matrix was investigated. The composites were evaluated through several tests, including tensile, compression, FTIR, TGA, DMTA, and water adsorption tests. It was found that the composites' tensi [...]

1647 11955

Open Access Perspective

Whisker Bond: From Findings to Concept in Refractories

Received: 12 January 2024;  Published: 12 April 2024;  doi: 10.21926/rpm.2402010

Abstract

Ceramic bonds are conventionally formed during the burning of refractory bricks and by using pre-fabricated blocks or monolithic lining, which is characterized as the coalescence of the particles by liquid sintering. However, the whisker bond was discovered with the outstanding performance of unburnt periclase–spinel–Al bricks while substituting magnesia–chrome bricks in the chromium-free campaign of refractory lining of RH degassers. Thanks to the prominent effect of the whisker bond, such a refr [...]

1024 5379

Open Access Review

Review on the Development of Titanium Diboride Ceramics

Received: 02 January 2024;  Published: 03 April 2024;  doi: 10.21926/rpm.2402009

Abstract

Titanium diboride (TiB2) materials have garnered significant attention due to their remarkable comprehensive properties. They offer potential applications in high-temperature structural materials, cutting tools, armor, electrodes for metal smelting, and wear-resistant parts. However, due to the low self-diffusion coefficient, the TiB2 exhibits poor sinterability, excessive grain growth at elevated temperatures, and inadequate oxidation resistance, limiting its wide application. Therefore, many research works are de [...]

3162 20783

Open Access Review

A Review on Silk Fibers and Their Medical Applications

Received: 12 December 2023;  Published: 15 March 2024;  doi: 10.21926/rpm.2401008

Abstract

This mini-compilation study included the chemical structure, mechanical, thermal, and dimensional properties of silk fiber, its production process, pre-treatment, and biomedical applications from various experimental studies, which are compiled and summarized. The silk fiber should have a degumming process before using biomedical applications. The 25% concentration for Na2CO3 in ethanol solution (80%) as a coagulant chemical with a salt such as LiB2 (9 M) at a temperature of 98°C for 45 minutes at pH between 6 [...]

2272 13492

Open Access Research Article

Capillary Suction Properties of Mortar Made with Recycled Plastic Aggregates Elaborated from Waste Electrical and Electronic Equipment

Received: 18 October 2023;  Published: 15 March 2024;  doi: 10.21926/rpm.2401007

Abstract

It is possible to revalue the plastic fraction from WEEE using it as a recycled aggregate (RA) in cement mortars. However, this feasibility depends on elaborating a granular material via a core-shell strategy to stabilize the potential contaminants. The core is a plastic particle, and the shell is a cement, fillers, and activated carbon mixture. Due to the hydrophilic characteristics of the shell and the presence of interstitial sites generated by the use of the RA, it is necessary to study the wetting properties o [...]

742 4650

Open Access Review

Self-Healing Concrete Techniques and Technologies and Applications

Received: 30 April 2023;  Published: 21 February 2024;  doi: 10.21926/rpm.2401006

Abstract

The main weakest point of concrete is its exposure to cracks, and concrete structure repair is expensive, especially for infrastructure maintenance, which is difficult to access. The ability of self-healing concrete (SHC) to successfully heal fractures without the assistance of humans has received much attention since it increases operational life and lowers maintenance expenses. This paper reviews various techniques and technologies of autogenous and autonomous self-healing concrete. Much more attention is given t [...]

5364 62809

Open Access Original Research

Do Magnetic Monopoles Exist?

Received: 21 October 2023;  Published: 07 February 2024;  doi: 10.21926/rpm.2401005

Abstract

In this paper, we continue our previous work by discussing the consequences of curvature in spacetime caused by the presence of mass and the implications of this. We address the question raised by Dirac regarding the impact of a magnetic monopole on the quantum world. We discuss quantization concerning the solid angles observed, which may have a connection with a magnetic monopole.

1199 10378

Open Access Original Research

Elementary Collective Effects in Systems Containing Small Fermion-Numbers

Received: 14 October 2023;  Published: 06 February 2024;  doi: 10.21926/rpm.2401004

Abstract

Collective effects are a typical nuclear feature that refers to the behavior of a group of N fermions (protons and neutrons) within the atomic nucleus. Our interest lies in light nuclei only. Thus, we consider here, using the Lipkin model, a small-N fermion system at low-temperature T and discover -collective phenomena. Our fermion-model simplicity allows one to gain insight into collective fermion behavior. We focus attention, for N<20, on several quantifiers. These include standard ones related to thermal [...]

1078 5038

Open Access Review

Modified Organized Systems by Incorporation of Carbon Allotropes and Derivatives for Electron Shuttle, ET, FRET, MEF, and Quantum Biology Coupling

Received: 14 October 2023;  Published: 31 January 2024;  doi: 10.21926/rpm.2401003

Abstract

This communication was brief to show how high conjugated carbon-based structures and carbon allotropes could participate as electron shuttles, semiconductors, quantum emitters, and Optoelectronic processors within confined nanostructured organized systems. In particular, it was focused on nanoassemblies such as vesicles, micelles, and lipidic nanoparticles and incorporated insights from other types of nanomaterials that could afford to develop new organized systems. In these cases, the term organized system was use [...]

930 5988

Open Access Review

An Overview of Treatments for Ultraviolet Quenching Substances (UVQS) and Per- and Polyfluoroalkyl Substances (PFAS) Removal from Landfill Leachate

Received: 15 September 2023;  Published: 24 January 2024;  doi: 10.21926/rpm.2401002

Abstract

Organics found in landfill leachate (humic acids, fulvic acids, and hydrophilic fraction) have a solid ability to absorb ultraviolet (UV) radiation, which negatively affects UV disinfection; leachate ultraviolet quenching substances (UVQS) can, therefore, have a significant impact on the cotreatment of landfill leachate and sewage in wastewater treatment plants. On the other hand, per- and polyfluoroalkyl substances (PFAS), which pose potential risks to the environment and human health, commonly exist in landfill l [...]

1574 9463

Open Access Editorial

Acknowledgment to Reviewers of Recent Progress in Materials in 2023

Received: 04 January 2024;  Published: 05 January 2024;  doi: 10.21926/rpm.2401001

Abstract

The editors of Recent Progress in Materials would like to express their sincere gratitude to the following reviewers for assessing manuscripts in 2023. We greatly appreciate the contribution of expert reviewers, which is crucial to the journal's editorial process. We aim to recognize reviewer contributions through several mechanisms, of which the annual publication of reviewer names is one. Reviewers can download a certificate of recognition directly from our submission system. Additionally, reviewers can sign up t [...]

762 4125

Open Access Review

Quantum Semiconductors Based on Carbon Materials for Nanophotonics and Photonics Applications by Electron Shuttle and Near Field Phenomena

Received: 16 September 2023;  Published: 26 December 2023;  doi: 10.21926/rpm.2304037

Abstract

This review intended to resume key Research reports and publications that open many themes and topics related to Carbon-based semiconductors and Quantum emitters. The Design and synthesis of highly pure materials such as Graphene, Carbon Nanotubes, fullerenes, and other Carbon-based allotropes were shown. They presented their most important and promising properties concerning new studies and developments in photonics. Carbon-based Quantum dots, semiconductors, and higher sized Nanoplatforms allowed us to discuss fu [...]

939 7161

Open Access Editorial

Potential Applications of Nanomedicine

Received: 03 December 2023;  Published: 05 December 2023;  doi: 10.21926/rpm.2304036

Abstract

EditorialPotential Applications of NanomedicineHossein Hosseinkhani *Innovation Center for Advanced Technology, Matrix HT, Inc., New York, NY 10019, USA; E-Mail: hh@matrix-inc.com* Correspondence: Hossein Hosseinkhani; E-Mail: hh@matrix-inc.comRecent Progress in Materials2023, volume 5, issue 4doi:10.21926/rpm.2304036Received: December 03, 2023Accepted: December 04, 2023Published: December 05, 2023

1031 5313

Open Access Original Research

Stress Analysis and Life Prediction of a Ceramic Matrix Composite Vane Using a Micromechanics-Based Approach

Received: 06 September 2023;  Published: 01 December 2023;  doi: 10.21926/rpm.2304035

Abstract

The results of stress analysis of a ceramic matrix composite (CMC) vane using a physics-based model developed for two-dimensional woven CMCs are presented. The model considers the inherent defects and micromechanical damage in woven CMCs along with time-dependent deformation of the constituents. Predictions include damage state under general load conditions and the global deformation response of the vane. Strain-gage data from burst tests are compared to strain predictions obtained using the model. Results from tim [...]

1359 9608

Open Access Short Review

Versatile Surface Chemistry of Carbon-Based Nanoplatforms by Covalent Bonding, Non-Covalent Linking, Crosslinking, and Self-Assembling

Received: 28 July 2023;  Published: 15 November 2023;  doi: 10.21926/rpm.2304034

Abstract

This mini-review discussed the best-known chemical and synthetic methodologies used in the last years to modify carbon allotropes, with an interest in nanotechnology. In this perspective, chemistry with optoelectronics applications and recent trends within bio-applications focusing mainly on graphene and its derivatives were considered. So, the mini-review intended to focus on methodologies to add functional groups with varied reactivities, polymer chemistry, and nanoscale control. These methodologies provide insig [...]

1097 7866

Open Access Original Research

Mesoscale Modeling of Extrusion and Solidification During Material Extrusion Additive Manufacturing

Received: 22 August 2023;  Published: 25 October 2023;  doi: 10.21926/rpm.2304033

Abstract

In this work, we apply a multiphysics approach to fused deposition modeling to simulate extrusion and solidification. Restricting the work to a single line scan, we focus on the application of polylactic acid. In addition to heat, momentum and mass transfer, the solid/liquid/vapor interface is simulated using a front-tracking, level-set method. The results focus on the evolving temperature, viscosity, and volume fraction and are cast within a set of parametric studies, to include the printing and extrusion speed, a [...]

1361 7427

Open Access Original Research

Pyrethrin Type Compounds from the Municipal Solid Waste Ghazipur Landfill Inert Soil as Brain and Cancer 5-HT Receptor Binding Agents

Received: 17 June 2023;  Published: 01 September 2023;  doi: 10.21926/rpm.2303032

Abstract

The Inert soil obtained from the Ghazipur Municipal Solid Waste landfill located in East Delhi, India has been used as the starting material for the work described in this paper. This mountain-like monster is often in the news for its bad smell, pollution of the groundwater in the area from its leachates, and the occasional fires in it endangering the lives of the people living nearby. Landfills produce many greenhouse gases (CO2, CH4, CO, HCHO, H2S, and NH3) which are poisonous and cause environmental pollution in [...]

1156 7293

Open Access Review

Review on Material Performance of Carbon Nanotube-Modified Polymeric Nanocomposites

Received: 21 March 2023;  Published: 16 August 2023;  doi: 10.21926/rpm.2303031

Abstract

The chemically functionalized carbon nanotubes (f-CNTs) and hydrogen bonding modified polymer composites (CPCs) exhibit unique chemical, mechanical, electrical, and thermal properties and are emerging as promising materials to achieve extraordinarily high electrical and thermal conductivity, lightweight and anticorrosion, superior strength and stiffness for potential applications in the aerospace and automotive industries, energy conversion, and optical and electronic devices, therefore, attracting considerable res [...]

1911 15362

Open Access Review

Insights Focused on Hybrid Graphene Modifications within the Nanoscale for Opto-Electronics Perspectives

Received: 26 May 2023;  Published: 04 August 2023;  doi: 10.21926/rpm.2303030

Abstract

This brief letter presents this Special Issue nominated as “Hybrid Graphene-based Materials: Synthesis, Characterization, Properties, and Applications”. This intends to show and discuss the main properties of Graphene and its derivatives; and how it could be synthesized, modified and tuned for Optics, Electro-Optics, Electronics, and Quantum characteristics. In this context, the synthesis and chemical modifications were highlighted for the design of Hybrid composites, platforms. In this context, it was afforded to [...]

1055 6926

Open Access Original Research

Behavior of RC Buildings under Blast Loading: Case Study

Received: 28 April 2023;  Published: 27 July 2023;  doi: 10.21926/rpm.2303029

Abstract

In recent years, regional wars and terror activities have caused blast-loading effects on reinforced concrete buildings, resulting in catastrophic human and material damage. When a building is exposed to a blast load, a very high air pressure affects the building within a very short duration. To decide on the reconstruction or retrofit of a building exposed to blast loading, the behavior of the building under blast loading should be investigated. In this paper a case study of a RC building exposed to blast loading [...]

1293 10524

Open Access Original Research

Detection of Anomalies in Additively Manufactured Metal Parts Using CNN and LSTM Networks

Received: 10 January 2023;  Published: 26 July 2023;  doi: 10.21926/rpm.2303028

Abstract

The process of metal additive manufacturing (AM) involves creating strong, complex components by using fine metal powders. Extensive use of AM methods is expected in near future for the production of small and medium-sized batches of end-use products and tools. The ability to detect loads and defects would enable AM components to be used in critical applications and improve their value. In this study, the Surface Response to Excitation (SuRE) method was used to investigate wave propagation characteristics and load [...]

1248 9753

Open Access Original Research

Development of Environmentally Ecofriendly Composites Based on Polypropylene/Bahia Beige Waste: Effect of Reinforcement Content on Physical, Mechanical, Chemical, and Microstructural Properties

Received: 22 May 2023;  Published: 18 July 2023;  doi: 10.21926/rpm.2303027

Abstract

This article presents the development and characterization of environmentally friendly composites comprising polypropylene (PP) reinforced with Bahia Beige (BB) marble waste. The composites were prepared using different PP/BB weight ratios and analyzed for their chemical, physical, mechanical, microstructural, and thermal properties. X-ray fluorescence (XRF) analysis revealed the composition of BB, which exhibited a significant concentration of CaO, indicating the presence of calcite and other oxides. X-ray diffrac [...]

1081 7935

Open Access Research Article

Spontaneous Magnetization in the Finite-Size Two-Leg Ising Ladder in the External Magnetic Field

Received: 30 March 2023;  Published: 24 June 2023;  doi: 10.21926/rpm.2302026

Abstract

This paper considers a finite-sized two-leg ladder of spin-1/2 particles with local inter-chain Ising interaction. We include the effects of an external magnetic field by incorporating a Zeeman-type coupling between the magnetic field and the spins localized on the lattice sites. To analyze the system, we utilize the transfer-matrix formalism to calculate the partition function. We compute the magnetization for different configurations by varying the system's parameters. We observe the presence 3of spontaneous magn [...]

1790 8579

Open Access Original Research

Micromechanics-Based Modeling of SiC/SiC Ceramic Matrix Composites and Structures

Received: 23 January 2023;  Published: 20 June 2023;  doi: 10.21926/rpm.2302025

Abstract

The behavior and response of ceramic matrix composites (CMCs), in particular silicon carbide fiber reinforced silicon carbide matrix (SiC/SiC), is affected by many factors such as variation of fiber volume fraction, residual stresses resulting from processing of the composites at high temperature, random microstructures, and the presence of matrix flaws (e.g., voids, pores, cracks etc.) as well as general material nonlinearity and heterogeneity that occurs randomly in a composite. Residual stresses arising from the [...]

1595 11414

Open Access Original Research

Efficacy of Zinc Pyrithione as A Novel Anti-Bacterial Coating Agent

Received: 02 May 2022;  Published: 15 June 2023;  doi: 10.21926/rpm.2302024

Abstract

Zinc pyrithione (ZPT) is used to prevent microbial degradation and deterioration of manufacturing starting materials such as plastics, polymers, and latexes. The main objective of this study was to evaluate the anti-bacterial properties of ZPT. Currently, there is insufficient data on the effect of ZPT on viability of commonly encountered bacterial pathogens. We tested the efficacy of ZPT manufactured in the form of film rolls as an anti-bacterial protective layer by using the ASTM–recommended protocol on gro [...]

1697 12855

Open Access Review

Nanomaterials with Plant or Animal Origin for Greener Biodelivery and Biosensor Applications: A Review

Received: 26 October 2022;  Published: 12 June 2023;  doi: 10.21926/rpm.2302023

Abstract

Nanomaterials are now used in almost every field of science; as conductors and electrodes in electronics, as nanodelivery systems in health screenings and drug delivery, as nanofibrils in filtering and textile industry, as nanoparticles in biosensor fabrication for toxin and pathogen detection, and in packaging materials in the food industry. Synthetic materials and plastics accumulate in the environment causing increasing health concerns for their use in food and pharmaceutical products. Therefore, researchers now [...]

1271 7330

Open Access Technical Note

Towards Femtoscan-Assisted Analysis of Liquid Crystal Self-Organization on Different Polymer and Glass Surfaces for Lab-on-a-Chip and Lab-on-a-Dish Applications, Including Optofluidic and Flexoelectric Ones

Received: 27 December 2022;  Published: 29 May 2023;  doi: 10.21926/rpm.2302022

Abstract

In this paper, starting with an introductory review of the applications of liquid crystals and polymer-dispersed liquid crystal systems in (bio)sensors and microfluidics, the possibilities of visualizing self-organization products of liquid crystalline media or field-induced instabilities of liquid crystalline systems are considered. In particular illustrated cases, it is proposed to use FemtoScan software-containing metrological complexes to visualize instabilities in liquid crystalline systems and products of sel [...]

1695 7753

Open Access Original Research

Low-Velocity Impact Resistance of Glass Laminate Aluminium Reinforced Epoxy (GLARE) Composite

Received: 16 June 2022;  Published: 12 May 2023;  doi: 10.21926/rpm.2302021

Abstract

This study intends to determine the behavior of glass laminate aluminum-reinforced epoxy (GLARE) and glass fiber-reinforced polymer (GFRP) composites under a low-velocity impact test. Experimental tests and numerical simulations are considered for this investigation. All samples are made by the hand lay-up method. Moreover, specimens are produced with a 7075-T6 aluminium sheet with a 0.5 mm thickness, resin 3001, and E-glass fiber. The drop weight test performs the low-velocity impact at 6.7 J and 10 J impact energ [...]

1341 10827

Open Access Review

3D Printing of MXenes-Based Electrodes for Energy Storage Applications

Received: 31 January 2023;  Published: 08 May 2023;  doi: 10.21926/rpm.2302020

Abstract

Energy storage devices (ESD) including batteries, and supercapacitors are becoming progressively imperative in the transition to a renewable energy future, as they enable the integration of intermittent renewable sources into the grid and provide backup power during outages. There are already reviews available on various energy storage materials and systems. However, the challenges in the choice of suitable materials and fabrication technology are yet to establish for the commercialization of affordable and efficie [...]

2058 13296

Open Access Original Research

Experimental and Analytical Studies of an Ultra-high Performance Concrete Beam Using Carbon Fiber Reinforced Polymer Bars

Received: 10 September 2022;  Published: 04 May 2023;  doi: 10.21926/rpm.2302019

Abstract

Infrastructure degradation attributable to concrete deterioration and corrosion of reinforcing steel has been a long-standing challenge to the owners and engineers. This problem becomes more evident when concrete structures are subject to aggressively corrosive environments. The use of advanced materials such as ultra-high performance concrete (UHPC) and carbon fiber reinforced polymer (CFRP) bars has a strong potential to overcome this challenge and help build new infrastructure that is durable and sustainable. Ho [...]

1138 8537

Open Access Correction

Correction: Non Solved Contemporary Scientific Problems of Non-Conventional Bio-Surfaces Lubrication. Recent Progress in Materials 2023; 5(1): 013

Received: 26 April 2023;  Published: 27 April 2023;  doi: 10.21926/rpm.2302018

Abstract

CorrectionCorrection: Non Solved Contemporary Scientific Problems of Non-Conventional Bio-Surfaces Lubrication. Recent Progress in Materials 2023; 5(1): 013Krzysztof Wierzcholski *, Jacek GospodarczykWSG Bydgoszcz University Garbary 2, Bydgoszcz, Poland; E-Mails: Krzysztof.wierzcholski@wp.pl; jacek.gospodarczyk@byd.pl* Correspondence: Krzysztof Wierzcholski; E-Mail: Krzysztof.wierzcholski@wp.plAcademic Editor: Hossein HosseinkhaniSpecial Issue: Non-Conventional Hydrodynamic Lubrication for Biological and Mechanic [...]

808 5038

Open Access Original Research

Physiological Response of a Natural Central Incisor Tooth to Various Loading Conditions: A 3D Finite Element Study

Received: 05 May 2022;  Published: 24 April 2023;  doi: 10.21926/rpm.2302017

Abstract

This study evaluates the influence of different loading angles and the area of loading on the ensuing stress distribution and the physical response of a natural central incisor tooth, using a 3D finite element analysis. The CAD model of the incisor tooth assembly (including enamel, dentin, periodontal ligament, pulp, gingiva and jaw bone) was subject to an external (chewing) load of 100 N, over four different areas and at four different angles along the vertical. It was observed that the tooth experiences high von- [...]

726 7132

Open Access Research Article

Evaluating the Performance of Hollow Core Slabs (HCS)-Concrete and Simplifying Their Implementation

Received: 02 March 2023;  Published: 19 April 2023;  doi: 10.21926/rpm.2302016

Abstract

The largest proportion of the material used in multistory buildings, and thus its carbon impact, is attributed to their slabs being the main contributor of weight. Because of their high strength and concrete self-weight reduction, composite beams with hollow-core slabs were created for their technical and economic benefits, making this system inexpensive and with a reduced environmental impact, thereby lowering carbon emissions. Geometrically, the hollow slab has a sequence of T and L form pieces on both sides. Hol [...]

2534 15196

Open Access Original Research

Effect of Heat Treatment on Sliding Wear Resistance of Hybrid Aluminum Matrix Composite

Received: 22 December 2022;  Published: 12 April 2023;  doi: 10.21926/rpm.2302015

Abstract

Composite materials with aluminum as matrix material have a wider amplitude of large-scale applications in engineering. Some salient features of aluminum matrix composites are, low density, low thermal coefficient of performance and low weight and high strength. Among the various series of aluminum alloy, Al6061 have been widely used by researchers due to its outstanding properties particularly as they are heat treatable. Aluminum 6061 alloys have been reinforced with various particulate reinforcements such as sili [...]

1057 7582

Open Access Original Research

7Li Diffusion in Thin Disks of Single-Crystal Garnet LLZO-Ta Studied by PFG-NMR Spectroscopy

Received: 24 January 2023;  Published: 03 April 2023;  doi: 10.21926/rpm.2302014

Abstract

Pulsed field-gradient (PFG) NMR spectroscopy was applied to thin disk samples (0.5, 1 and 2 mm thick, 4 mm diameter) of LLZO-Ta (Li6La3Zr1.5Ta0.5O12) single crystal. We have measured the diffusion of 7Li in thin pellets (0.5 to 3 mm thick) of NASICON-type LAGP powder and found that the Li+ diffuses preferentially in the thicker direction. In this study, we placed 1 mm thick, 4 mm diameter disk-shaped single crystals vertically, i.e., parallel to the PFG direction. We found that 7Li ions diffuse similarly as in rod- [...]

2556 11953

Open Access Research Article

Non Solved Contemporary Scientific Problems of Non-Conventional Bio-Surfaces Lubrication

Received: 19 December 2022;  Published: 27 March 2023;  doi: 10.21926/rpm.2301013

Abstract

This paper presents new non solved, scientific research directions and their applications in contemporary non-conventional lubrication problems of the bio-surfaces domain. Here are described new research scientific trends and research problem solutions of hydrodynamic lubrication for living tissue, human skin and human cartilage joints surfaces. At first in introduction is described the state of the art, a new purpose of anticipate research and the bio-tribology connections with other scientific domains are documen [...]

840 6855

Open Access Original Research

Mechanics of ABS Polymer under Low & Intermediate Strain Rates

Received: 24 January 2023;  Published: 16 March 2023;  doi: 10.21926/rpm.2301012

Abstract

Thermoplastics polymers like Acrylonitrile Butadiene Styrene (ABS) are often reinforced with nano/micro reinforcements to enhance their mechanical, thermal and electrical properties. However, the viscoelastic nature of these polymers results in their strong dependence on the applied strain rate and temperature sensitivity, leading to their characterization complexity. Hence it is paramount to study the strain rate-dependent mechanics of neat ABS. In this study, the effect of strain rate and temperature on Young’s m [...]

2265 14273

Open Access Retraction

Retraction: Roy S. Performance of Grouted Coupler Embedded in Reinforced Concrete ABC Bridge Pier at Vehicle Impact. Recent Progress in Materials 2023; 5(1): 001

Received: 28 February 2023;  Published: 28 February 2023;  doi: 10.21926/rpm.2301011

Abstract

RetractionRetraction: Roy S. Performance of Grouted Coupler Embedded in Reinforced Concrete ABC Bridge Pier at Vehicle Impact. Recent Progress in Materials 2023; 5(1): 001Recent Progress in Materials Editorial OfficeLIDSEN Publishing Inc., 2000 Auburn Drive, One Chagrin Highlands, Suite 200, Beachwood, OH, USA; E-Mail: rpm@lidsen.com Recent Progress in Materials2023, volume 5, issue 1doi:10.21926/rpm.2301011Received: February 28, 2023Accepted: February 28, 2023Published: February 28, 2023

750 4801

Open Access Interview

An Interview with Assoc. Prof. Carlo Santulli

Received: 26 February 2023;  Published: 27 February 2023;  doi: 10.21926/rpm.2301010

Abstract

InterviewAn Interview with Assoc. Prof. Carlo SantulliRecent Progress in Materials Editorial OfficeLIDSEN Publishing Inc., 2000 Auburn Drive, One Chagrin Highlands, Suite 200, Beachwood, OH, USA; E-Mail: rpm@lidsen.com Recent Progress in Materials2023, volume 5, issue 1doi:10.21926/rpm.2301010Received: February 26, 2023Accepted: February 26, 2023Published: February 27, 2023

740 4794

Open Access Research Article

Accounting for the Influence of Heat-Moisture Treatment Mode When Designing Concrete Composition

Received: 12 January 2023;  Published: 24 February 2023;  doi: 10.21926/rpm.2301009

Abstract

The article proposes a method that considers the parameters of heat and moisture treatment of concrete when designing its composition. Based on the analysis of experimental data, formulas are proposed that allow taking into account the type and characteristics of cement, the characteristics of aggregates, the effect of temperature and duration of steaming, and the water-cement ratio. Graphs and nomograms have been obtained, which makes it possible to simplify the calculation procedure according to the proposed meth [...]

1057 6531

Open Access Review

Advances in Quantum Properties of Graphene and Derivatives Applied to Functional Nanomaterials and Metamaterials

Received: 30 December 2022;  Published: 13 February 2023;  doi: 10.21926/rpm.2301008

Abstract

In the present work we describe the most important quantum properties of graphene and derivatives recently published. We discuss how these properties were incorporated into varied hybrid materials such as substrates for specific tuning of matter to track varied quantum signals. Their potential applications were analyzed from nanomaterial and nanotechnology. In particular graphene, its derivatives and other carbon-based allotropes were chosen due to their special chemical structure and properties from the nanoscale [...]

1317 9851

Open Access Original Research

Study of Recycled Spent Coffee Grounds as Aggregates in Cementitious Materials

Received: 29 September 2022;  Published: 16 January 2023;  doi: 10.21926/rpm.2301007

Abstract

Most spent coffee grounds (SCGs), a byproduct of brewing coffee, are buried in landfill sites, and their decomposition produces significant greenhouse gases. As the recent warming of the Earth’s climate has made it imperative that industries reduce greenhouse gas emissions, the present study investigates the viability of recycling SCGs for use as a partial replacement of aggregates in concrete materials. Cement mortar samples with a fixed cement-to-water ratio and varying amounts of SCGs were fabricated and tested. [...]

2063 27295

Open Access Review

Reuse of Sawdust in Developing Countries in the Light of Sustainable Development Goals

Received: 02 September 2022;  Published: 12 January 2023;  doi: 10.21926/rpm.2301006

Abstract

The several furniture-making phases, from cutting to processing to polishing, produce a significant volume of sawdust of differing grades. The extraction and disposal of such waste in developing countries with no established or sustainable methods is an increasing problem, frequently posing environmental challenges. Sawdust is one of the most underused wood waste portions, with mounds dispersed around the region, detracting from its visual appeal and causing other ecological concerns. This study investigated potent [...]

3561 631695

Open Access Review

The Relation between Environmental Risk Analysis and the Use of Nanomaterials in the Built Environment Sector: A Circular Economy Perspective

Received: 02 August 2022;  Published: 11 January 2023;  doi: 10.21926/rpm.2301005

Abstract

Nowadays, the challenge of climate change and “ecological transition” is substantially an “energy challenge” for every city, which is supposed to become as “energetically self-sufficient” as possible. The construction sector is one of the main contributors to the effects of climate change, starting from the production of materials to the use phase of buildings to their demolition. Recent innovations in sustainable/circular design are related to using “new materials." According to this perspective, nanomaterials are [...]

1379 8642

Open Access Case Report

Influence of Wetting-Drying Cycles on Wood Behaviour of Coastal Pedestrian Walkways

Received: 30 September 2022;  Published: 11 January 2023;  doi: 10.21926/rpm.2301004

Abstract

In the context of inspection and maintenance actions for beach walkways in the North of Portugal, some samples of wood used in their construction were collected – the Pinus sylvestris wood, widely applied in the country. The sustainability of the beach walkways over natural coastal areas is very dependent on their material durability. One of the main problems of the timber used to build those structures is its behavior under wet-drying cycles. For that reason, this work aimed to simulate the effects of weathering o [...]

1160 8851

Open Access Review

Application of Finite Element Method for Mechanical Characterization of Wood and Reconstituted Lignocellulosic-Based Composites – A Review

Received: 22 September 2022;  Published: 09 January 2023;  doi: 10.21926/rpm.2301003

Abstract

Performance evaluations of wood and other lignocellulosic-based composites involve complex scenarios of several factors such as material heterogeneity and geometry that often leads to complicated, expensive, and time-consuming experimental procedures. Hence, the application of computational modeling and simulation is desirable to mitigate these biocomposites’ performance testing challenges. This review paper, therefore, presents an outlook on the finite element method (FEM) application in probing performance charac [...]

1948 13782

Open Access Editorial

Acknowledgment to Reviewers of Recent Progress in Materials in 2022

Received: 04 January 2023;  Published: 04 January 2023;  doi: 10.21926/rpm.2301002

Abstract

The editors of Recent Progress in Materials would like to express their sincere gratitude to the following reviewers for assessing manuscripts in 2022. We greatly appreciate the contribution of expert reviewers, which is crucial to the journal's editorial process. We aim to recognize reviewer contributions through several mechanisms, of which the annual publication of reviewer names is one. Reviewers receive a voucher entitling them to a discount on their next LIDSEN publication and can download a certificate of re [...]

676 4326

Open Access Original Research

Retracted: Performance of Grouted Coupler Embedded in Reinforced Concrete ABC Bridge Pier at Vehicle Impact

Received: 27 September 2022;  Published: 03 January 2023;  doi: 10.21926/rpm.2301001

Abstract

Increased occurrence of dynamic loading on bridge piers caused by seismic, blast and vehicular impact incidences have been increasingly reported. Statistical data shows that while seismic and blast have received significant attention in the literature despite the frequency of occurrence of vehicular impact is remarkably higher. Unfortunately, pier damage caused by high velocity vehicle impact contemplates a little consideration. With the newer construction methods like accelerated bridge construction (ABC) and its [...]

1178 7989

Open Access Review

A Review of Various Treatment Methods for the Removal of Dyes from Textile Effluent

Received: 15 October 2022;  Published: 30 December 2022;  doi: 10.21926/rpm.2204028

Abstract

Wastewater generated by the textile industry has been a major environmental concern for a long. Production of fiber involves various steps and uses a lot of chemicals, dyes, and water. Therefore, the effluent produced from the textile industry needs proper purification before discharging into the water body. The current review summarizes various physical and chemical methods like ion exchange, coagulation-flocculation, membrane separation, membrane distillation, oxidation, ozonation, etc., for wastewater treatment. [...]

4224 33573

Open Access Original Research

About Non-relativistic Quantum Mechanics and Electromagnetism

Received: 21 October 2022;  Published: 08 December 2022;  doi: 10.21926/rpm.2204027

Abstract

We describe here the coherent formulation of electromagnetism in the non-relativistic quantum-mechanical many-body theory of interacting charged particles. We use the mathematical frame of the field theory and its quantization in the spirit of the quantum electrodynamics (QED). This is necessary because a manifold of misinterpretations emerged especially regarding the magnetic field and gauge invariance. The situation was determined by the historical development of quantum mechanics, starting from the Schrödinger e [...]

5601 13778

Open Access Review

Recycled Wastewater Usage: A Comprehensive Review for Sustainability of Water Resources

Received: 29 August 2022;  Published: 25 November 2022;  doi: 10.21926/rpm.2204026

Abstract

Water recycling is a potential tool for reducing the dependency on traditional water sources, which would eventually reduce the likelihood of volumetric restrictions and their impacts on the water sector. Therefore, exploration, development, and use of alternative water sources are required for sustainable development. Scientific studies on the efficient and economical use of nontraditional water sources developed using the recycling process have attracted the attention of agriculturists, planners, and engineers fo [...]

1716 60593

Open Access Research Article

Biocompatibility and Surface Integrity of Zirconia Ceramics Treated by Laser-plasma Driven Shock-waves

Received: 10 April 2022;  Published: 22 November 2022;  doi: 10.21926/rpm.2204025

Abstract

This is a multi-disciplinary paper focused on the preliminary results of deploying laser shock treatment (LST) to ZrO2 ceramics. This work has significance in several industrial sectors for components that will benefit from strengthening. These components are, namely: dental implants; cutting and drawing tools; valves, bearings, pressure vessels, heat exchangers and high-performance scissors and knives, where modification of hard, brittle materials properties such as that of a ZrO2, can yield a performance boost. T [...]

1044 6728

Open Access Original Research

Pentachlorophenol Effect on Auxin Production by Pseudomonas fluorescens GU059580 and Its Application in Wastewater Bioremediation

Received: 29 July 2022;  Published: 18 November 2022;  doi: 10.21926/rpm.2204024

Abstract

Bioaugmentation by Pseudomonas strains is widely used for the removal of pollutants in wastewater. In this study, we aimed to determine the removal of pentachlorophenol (PCP, 800 mg·L–1) in secondary wastewater by the bioaugmentation process. We determined the effects of using three surfactants, namely sodium dodecyl sulfate (SDS), cetyl-tri-methyl-ammonium bromide (CTAB), and Tween 80 for PCP removal. We determined the effect of the role of PCP surfactant for the biofilm and auxin production of the se [...]

937 6305

Open Access Original Research

Application of the Extrapolation Method in Battery Diagnostics for Electric Vehicles

Received: 17 August 2022;  Published: 14 November 2022;  doi: 10.21926/rpm.2204023

Abstract

In a lithium-ion battery, the crossing of its charging–discharging curves represents an unambiguous current capacity. The reproduction of a complete charging–discharging cycle defines the maximum possible charge for a current battery state. When obtaining of the curves experimentally, one should consider the duration of polarization or depolarization. It is reported that the battery capacity depends considerably on the value of the battery’s internal resistance as this value defines the location of the actual charg [...]

871 6190

Open Access Original Research

Strength Properties of Cellulosic Fibrous Mats Impregnated with Water Repellents Based on Reclaimed Polystyrene

Received: 23 August 2022;  Published: 28 October 2022;  doi: 10.21926/rpm.2204022

Abstract

Cellulosic fibrous mats were impregnated with various water-repellent formulations based on reclaimed polystyrene (5, 10, 15, and 20%), alkyd resin (5%), gum rosin (5%), and paraffin wax (0.5%). The mats were tested for their bursting strength and resistance to bending. They were also subjected to the ring crush test and short-span compression test. By increasing the concentration of total solid ingredients (5, 10, 15, 20, and 25.5%), the retention and grammage of the mats were increased, and all strength propertie [...]

1312 6140

Open Access Original Research

Elastohydrodynamic Squeeze-film Interaction in Synovial Joints with Nanofluid Lubrication

Received: 09 July 2022;  Published: 19 October 2022;  doi: 10.21926/rpm.2204021

Abstract

New lubrication events can be predicted using improved pathological non-Newtonian physiological fluids coupled to phospholipid-based bilayers in variable time-dependent magnetic fields under random non-steady conditions. In this study, we investigated nanofluid lubrication systems for synovial joints. The particles of PSPMA-g-HSNPs were used as nanoparticles. The hydrodynamic interaction between the knee bones separated by a nanofluid film was considered here for various nanofluid concentrations. The simulation ind [...]

1102 8359

Open Access Original Research

Green Synthesis of Metal-Organic Biohybrid (Mob) Nanomaterials

Received: 02 August 2022;  Published: 17 October 2022;  doi: 10.21926/rpm.2204020

Abstract

Green synthesis of nanomaterials endeavors to reduce the use of high energy methods with those that may include lower temperatures and pressures, use of natural products, and bottom-up self-assembly. Here we describe the generation of metal-organic biohybrids (MOBs) with nanoscale features synthesized at physiological (37°C) and room temperature (25°C). These MOBs utilized the naturally occurring amino acid dimer cystine as the biological component, and a series of metals, including copper, silver, and cobalt. The [...]

1366 11771

Open Access Research Article

Optical, Charge Transport, Thermal, Magnetic, Plasmonic, and Quantum Mechanical Properties of Iridium

Received: 30 July 2022;  Published: 12 October 2022;  doi: 10.21926/rpm.2204019

Abstract

Spectrophotometry has been widely used to retrieve the dielectric function of a bulk iridium sample using an extended version of the Drude–Lorentz model. The parameters of the model are optimized using a spectral-projected-gradient-method-assisted acceptance-probability-controlled simulated annealing approach. Furthermore, optimized values of Drude parameters corresponding to the optical response of electrons and holes (scattering frequency of electrons, the ratio between scattering frequencies of holes and electro [...]

1214 8428

Open Access Research Article

Calculation of the Forces Applied to a Superconductor in Levitation in an Inhomogeneous Magnetic Field

Received: 07 July 2022;  Published: 15 September 2022;  doi: 10.21926/rpm.2203018

Abstract

Stable levitation of systems consisting of a magnetic source and a superconductor is actively investigated due to the promising applications of this technology. While huge efforts have been made for modeling these setups with numerical simulations, analytical models, in spite of their use being limited to devices with a high degree of symmetry, can bring precious information on certain characteristics of levitating systems. Summarizing our previous work in the field, we present the mean-field model that we have pro [...]

2019 15020

Open Access Original Research

Influence of Recycled Concrete Aggregate Type on Rheological Behaviour of Mixtures Proportioned Using the Equivalent Volume Method

Received: 11 July 2022;  Published: 07 September 2022;  doi: 10.21926/rpm.2203017

Abstract

The ever-growing urgency to combat climate change has led the civil construction industry to develop and adopt sustainable construction materials and methods. The so-called recycled concrete aggregate (RCA) emerges as an alternative to decrease the carbon footprint of new concrete construction, the disposal of waste concrete, and the use of non-renewable natural resources such as cement and aggregates. RCA can be produced from crushing waste concrete; yet challenges remain when using RCA in concrete especially its [...]

1232 8614

Open Access Interview

An Interview with Prof. José Ignacio Álvarez Galindo

Received: 29 August 2022;  Published: 30 August 2022;  doi: 10.21926/rpm.2203016

Abstract

Interview An Interview with Prof. José Ignacio Álvarez GalindoRecent Progress in Materials Editorial OfficeLIDSEN Publishing Inc., 2000 Auburn Drive, One Chagrin Highlands, Suite 200, Beachwood, OH, USA; E-Mail: rpm@lidsen.comRecent Progress in Materials2022, volume 4, issue 3doi:10.21926/rpm.2203016Received: August 29, 2022Accepted: August 29, 2022Published: August 30, 2022

895 5689

Open Access Original Research

Indoor Built Environments Attended by Primary School Children and Its Microbiology: A Cross-Project Study

Received: 10 March 2022;  Published: 24 August 2022;  doi: 10.21926/rpm.2203015

Abstract

Exposure to indoor pollutants may exert a significant effect on children health as they spend most of their time in enclosed environments. This research compared the association of biological concentrations with indoor characteristics and building materials in places where children spend significant time indoors. It was compared the results of two autonomous research projects conducted in Porto primary schools and households. Both the projects included a walkthrough inspection and biological measurements in indoor [...]

1155 7833

Open Access Case Report

A Case Study on the Impact of Transportation of Mass Timber Products on the Cradle-to-Gate LCA Results for an Institutional Building

Received: 21 April 2022;  Published: 05 August 2022;  doi: 10.21926/rpm.2203014

Abstract

Mass timber products (MTPs) are being adopted in new building constructions and remodels in the last three decades, credited to their renewable and low carbon footprint characteristics. However, there are no mass timber manufacturers currently existing in Atlantic Canada. Extended distances of transporting MTPs to this region from other Canadian provinces may sacrifice the environmental benefits of using MTPs. This study was aimed to understand, via conducting a cradle-to-gate life cycle assessment (LCA), the envir [...]

1281 11078

Open Access Research Article

Effects of Chemical Stabilisation of Eggshells-Lime and Fly-Ash-Cement on the Structural Strength of Subgrade Soil in Rural Roads

Received: 15 May 2022;  Published: 04 August 2022;  doi: 10.21926/rpm.2203013

Abstract

This study examines the chemical compositions of eggshell powder (ESP) and lime as the soil stabilisers and compared with the compositions of cement and fly-ash to understand the optimal distribution of chemical stabilisers maximising the bearing capacity and structural integrity of subgrade soil. The different proportions of eggshell powder (ESP) (2%, 4%, 6% and 8% of total soil mass) were mixed with a fixed proportion of lime (6% of total soil mass) to analyse the optimum proportion of eggshell maximising the soi [...]

1143 10875

Open Access Original Research

Solubility of Dental Ceramics in Electric Fields

Received: 21 April 2022;  Published: 15 June 2022;  doi: 10.21926/rpm.2202012

Abstract

Combining dental ceramics with other prosthetic metallic restorations might release metal ions, thus affecting the oral tissues of the patients. In this study, we evaluated the electrochemical solubility of various dental ceramics in a galvanic experimental setup in vitro. Smooth and rough feldspathic and zirconium dioxide ceramics (at pH 5.5 and pH 3.0) were exposed to an electric field. Calcium, barium, and zirconium were selected as parameters to determine the solubility of both types of ceramic materials. Among [...]

1119 7887

Open Access Review

Modifications of Glass Ionomer Cements Using Nanotechnology: Recent Advances

Received: 01 May 2022;  Published: 01 June 2022;  doi: 10.21926/rpm.2202011

Abstract

Glass ionomer cements (GICs) are dental materials that were invented by Wilson & Kent in 1972. They can chemically bond to enamel and dentin and can exhibit anti-cariogenic activity that allows the release and uptake of fluoride ions. They also possess the ability to render color. The setting reaction of GICs is a neutralization reaction that results in the formation of polycarboxylate salts. The most important GIC modification process involves the addition of resin components, resulting in the development of resin [...]

2236 25625

Open Access Original Research

Role of Point of Zero Charge in the Adsorption of Cationic Textile Dye on Standard Biochars from Aqueous Solutions: Selection Criteria and Performance Assessment

Received: 19 April 2022;  Published: 19 May 2022;  doi: 10.21926/rpm.2202010

Abstract

The point of zero charge (PZC) is an inherent electrokinetic property of biochars (BC). It influences the adsorption process under certain pH conditions. Herein, we report the method of determination of the PZC values of ten standard BCs. We used the salt addition method to select the BCs with suitable properties for methylene blue (MB) removal from aqueous solutions. The standard BCs were obtained by pyrolyzing five different biomasses at two distinct temperatures (550°C and 700°C). The BCs derived from rice husk [...]

6749 33052

Open Access Research Article

4D Printed Shape Memory Polymers: Morphology and Fabrication of a Functional Antenna

Received: 17 February 2022;  Published: 29 April 2022;  doi: 10.21926/rpm.2202009

Abstract

Shape memory polymers (SMPs) are smart materials that can respond to certain thermal, chemical or electrical stimuli by inducing a structural conformation change into a temporary shape. In this work, a 3D printing process based on a Vat Photo-polymerization of a shape memory polymer (SMP) was investigated to produce customized smart and complex morphable antennas. The mechanical and material properties were examined through a tensile, flexural and rheological testing for different polymer mixture ratios. It was obs [...]

1650 13352

Open Access Review

Development of Low Elastic Modulus Titanium Alloys as Implant Biomaterials

Received: 20 March 2022;  Published: 21 April 2022;  doi: 10.21926/rpm.2202008

Abstract

Biomaterials have always been the focus of material scientists and engineers. Titanium and its alloys have favorable properties, such as high strength, low density, good corrosion resistance, non-toxicity, low elastic modulus, biocompatibility, etc. Thus, Ti alloys have received much attention from scientists and engineers who work with biomaterials. Among these properties, the elastic modulus is a very important property for implant biomaterials because it avoids the “stress shielding” effect. In this study, we su [...]

3884 25438

Open Access Interview

An Interview with Prof. Vincenzo M. Sglavo

Received: 11 April 2022;  Published: 14 April 2022;  doi: 10.21926/rpm.2202007

Abstract

An Interview with Prof. Vincenzo M. Sglavo.

868 5817

Open Access Original Research

Reaction Kinetics and Characterization of Slag-Based, High Strength, “Just-Add-Water” Type (One-Part) Alkali-Activated Binders

Received: 03 February 2022;  Published: 08 April 2022;  doi: 10.21926/rpm.2202006

Abstract

The influence of different levels of alkalinity, expressed using M2O-to-binder ratio (n) and activator SiO2-to-M2O ratio (Ms), (M being the Na+ or K+ cation) on the reaction kinetics, compressive strength development and the reaction product formation in slag-based systems activated using alkali powders are discussed. The fundamental idea is to better understand one-part, “just-add-water” type alkali activated binders that are easy-to-use than the systems that rely on liquid activators. The difference in the behavi [...]

1406 10092

Open Access Original Research

Automated Quality and Process Control for Additive Manufacturing using Deep Convolutional Neural Networks

Received: 24 November 2021;  Published: 28 February 2022;  doi: 10.21926/rpm.2201005

Abstract

Additive Manufacturing (AM) is a crucial component of the smart manufacturing industry. In this paper, we propose an automated quality grading system for the fused deposition modeling (FDM) process as one of the major AM processes using a developed real-time deep convolutional neural network (CNN) model. The CNN model is trained offline using the images of the internal and surface defects in the layer-by-layer deposition of materials and tested online by studying the performance of detecting and grading the failure [...]

1483 12306

Open Access Review

Material Challenges and Opportunities in 3D Printing for Hip Implant Applications

Received: 16 November 2021;  Published: 23 February 2022;  doi: 10.21926/rpm.2201004

Abstract

There is a current need for tissue and organ repairs, replacement, and regeneration for patients who suffer from diseased or damaged tissues or organs. This situation is continuously on the rise and the supply of this form of therapy does not meet the patients demand mostly due to lack of donors and biocompatibility issues which causes immune system rejection of the implants. To succeed through these limitations, researchers are currently investigating the use of scaffolds as another approach for implants. The conv [...]

2616 24412

Open Access Research Article

Life Cycle Assessment (LCA) of Wood Flour and Pellets for Manufacturing Wood-Plastic Composites (WPCs)

Received: 07 December 2021;  Published: 09 February 2022;  doi: 10.21926/rpm.2201003

Abstract

This study is expanding the previous studies that were focused on the material properties and transportation costs of the two alternative feedstocks for manufacturing wood-plastic composites (WPCs): wood flour and pellets. Besides the material properties and cost analysis, life-cycle assessment (LCA) is equally important to assess the environmental impacts of these two alternative wood feedstocks to manufacture WPCs and gain the knowledge of influences from the manufacturing and transportation processes. The main g [...]

1375 16227

Open Access Original Research

Fabrication and Demonstration of a 3D-printing/PDMS Integrated Microfluidic Device

Received: 21 October 2021;  Published: 25 January 2022;  doi: 10.21926/rpm.2201002

Abstract

3D printing is an attractive method to fabricate microfluidic devices due to (1) its fast and simple process without specialized equipment and cleanroom environment, and (2) its capability to create complex 3D structures. Combined with Polydimethylsiloxane (PDMS), it can be used to develop various microfluidic devices taking advantage of both 3D printing and PDMS. In this paper, we investigated a Digital Light Processing (DLP) 3D printer to fabricate 3D printing/PDMS integrated microfluidic devices. We used it to f [...]

2776 21255

Open Access Editorial

Acknowledgment to Reviewers of Recent Progress in Materials in 2021

Received: 05 January 2022;  Published: 06 January 2022;  doi: 10.21926/rpm.2201001

Abstract

The editors of Recent Progress in Materials would like to express their sincere gratitude to the following reviewers for assessing manuscripts in 2021. We greatly appreciate the contribution of expert reviewers, which is crucial to the journal's editorial process. We aim to recognize reviewer contributions through several mechanisms, of which the annual publication of reviewer names is one. Reviewers receive a voucher entitling them to a discount on their next LIDSEN publication and can download a certificate of re [...]

855 7175

Open Access Original Research

Cradle-to-Grave Life-Cycle Assessment of Cellulosic Fiberboard

Received: 24 August 2021;  Published: 21 December 2021;  doi: 10.21926/rpm.2104049

Abstract

According to the United Nations Environment Programme (UNEP), the construction and operation of buildings accounted for nearly 38% of total global energy-related CO2 emissions in 2019. The construction sector has been striving to use more low-carbon footprint building products to mitigate climate change and enhance environmentally preferable purchasing. Over the last several decades, there has been substantial growth in engineered wood products for the construction industry. To assess these products used in constru [...]

1509 14960

Open Access Research Article

Life Cycle Assessment of North American Laminated Strand Lumber (LSL) Production

Received: 18 June 2021;  Published: 15 December 2021;  doi: 10.21926/rpm.2104048

Abstract

Raw materials for buildings and construction account for more than 35% of global primary energy use and nearly 40% of energy-related CO2 emissions. The Intergovernmental Panel on Climate Change (IPCC) emphasized the drastic reduction in GHG emissions and thus, wood products with very low or negative carbon footprint materials can play an important role. In this study, a cradle-to-grave life cycle assessment (LCA) approach was followed to quantify the environmental impacts of laminated strand lumber (LSL). The inven [...]

1331 12141

Open Access Original Research

Pozzolanic and Cementing Activity of Raw and Pyro-Processed Saudi Arabian Red Mud (RM) Waste

Received: 28 September 2021;  Published: 29 November 2021;  doi: 10.21926/rpm.2104047

Abstract

This paper investigates the composition, properties and reactivity of a red mud waste generated in Saudi Arabia with a view to find alternative materials to replace construction binders of high environmental impact. The phase transformation triggered by the sintering of the RM up to 1000°C is determined with thermal and X-Ray Diffraction analyses. Reactivity is investigated with chemical and physical methods including the Chapelle test, setting times, mechanical index and microscopy. The RM is clearly pozzol [...]

1650 13738

Open Access Original Research

Assessment of Mineral Gain in White Spot Lesions Using CPP-ACP and CPP-ACFP in Different Clinical Protocols: A Proof of Concept Study

Received: 28 September 2021;  Published: 26 November 2021;  doi: 10.21926/rpm.2104046

Abstract

Subsurface remineralization can be promoted by the topical application of nanoparticles of casein phosphopeptide-amorphous calcium phosphate (CPP-ACP). To assess changes in enamel white spot lesions, an in situ proof-of-concept investigation was performed using 5 subjects (all of whom were healthy young adults) with a cross-over study design. Custom orthodontic brackets were attached to the buccal surfaces of the maxillary second premolar and first molar teeth. Each bracket had a recess that held a slab of enamel w [...]

1346 11579

Open Access Research Article

Meat Waste Valorization through Protein Hydrolysis using Different Types of Proteases

Received: 12 May 2021;  Published: 08 November 2021;  doi: 10.21926/rpm.2104045

Abstract

Five different commercial proteases (Alcalase 2.4L, Flavourzyme 1000L, Neutrase, Protamex, and PTN) were evaluated for the simultaneous recovery of protein and lipids through hydrolysis. The hydrolysis reaction was monitored using the pH-stat procedure, in which samples were collected after 240 min of hydrolysis using each enzyme. The samples were analyzed for the degree of hydrolysis, protein hydrolysate, collagen, lipids, and fatty acids. A clear relationship was observed between the degree of hydrolysis and the [...]

1775 15412

Open Access Short Review

Reverse Mode Polymer Dispersed Liquid Crystal-based Smart Windows: A Progress Report

Received: 17 August 2021;  Published: 01 November 2021;  doi: 10.21926/rpm.2104044

Abstract

The reverse mode polymer dispersed liquid crystal (PDLC) is an emerging smart window technology. Unlike traditional PDLCs, a reverse mode PDLC can be transparent and opaque in the absence and presence of an external electric field. This report provides a brief introduction to several reverse modes PDLC smart window technologies, focusing on polymer-stabilized liquid crystals (PSLCs). The systems based on electrohydrodynamic instability (EHDI) of liquid crystals have also been discussed. The working principles, mode [...]

3289 40256

Open Access Original Research

Quantum Chemistry Estimation of Adhesion Strength of Hydroxyapatite with Titanium Substrate

Received: 12 May 2021;  Published: 27 October 2021;  doi: 10.21926/rpm.2104043

Abstract

One of the ways to improve the fusion of an implant with bone tissue is through the use of biocompatible coatings, in particular, hydroxyapatite (HAp). It is important to assess the strength of the HAp adhesion to the implant. The measure of the strength of the bond of the coating with the substrate is the energy of this bond. Using density functional theory and molecular dynamics, the reaction path, reaction products, oscillation frequency, activation energy and bond energy between different combinations of compon [...]

1412 9743

Open Access Research Article

Efficient Debye Function Interpolation Formulae: Sample Applications to Diamond

Received: 17 June 2021;  Published: 22 November 2021;  doi: 10.21926/rpm.2104042

Abstract

The well-known classical heat capacity model developed by Debye proposed an approximate description of the temperature-dependence of heat capacities of solids in terms of a characteristic integral, the T-dependent values of which are parameterized by the Debye temperature, ΘD. However, numerous tests of this simple model have shown that within Debye's original supposition of approximately constant, material-specific Debye temperature, it has little chance to be applicable to a larger variety of non-metals, e [...]

1864 15207

Open Access Original Research

Durability of Alkali-Activated Materials Made with a High-Calcium, Basic Slag

Received: 09 June 2021;  Published: 13 October 2021;  doi: 10.21926/rpm.2104041

Abstract

Alkali activated (AA) materials have been investigated for decades as an alternative to Portland cement (PC) products. Most consist of a silicate waste activated with alkalis, which leads to lower green-house gas emissions and a substantial drop in the use of unrenewable material resources. This paper studies the durability of AA materials made with a ground granulated blast furnace slag (GGBS) from Dublin, activated with sodium hydroxide (NaOH), and sodium silicate (Na2SiO3), both combined and separately, and cure [...]

1456 15318

Newsletter  

TOP