Table of Content

Open Access Original Research

A New Model for the Shear of Atomic Planes

Received: 21 December 2025;  Published: 18 March 2026;  doi: 10.21926/rpm.2601002

Abstract

The article presents a model that describes the shear of atomic planes in crystalline solids by accounting for their electronic structure. Previous studies have shown that an isotropic distribution of valence electrons leads to a spherically symmetric interatomic potential, which affects the stability of the crystal lattice against small shear deformations. Under these conditions, lattice stability is largely determined by the crystal's surface layer. As a consequence, the resistance to atomic-plane shear exhibits [...]

120 338

Open Access Editorial

Acknowledgment to Reviewers of Recent Progress in Materials in 2025

Received: 04 January 2026;  Published: 04 January 2026;  doi: 10.21926/rpm.2601001

Abstract

The editors of Recent Progress in Materials would like to express their sincere gratitude to the following reviewers for assessing manuscripts in 2025. 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 [...]

363 866

Open Access Original Research

Rapid Green Synthesis of Silver Nanoparticles and Alginate-Silver Nanocomposite Beads Using Mashmoom (Ocimum basilicum), a Bahraini Household Medicinal Herb

Received: 16 June 2025;  Published: 17 November 2025;  doi: 10.21926/rpm.2504017

Abstract

The study focuses on the rapid green synthesis of silver nanoparticles (AgNPs) and alginate-silver nanocomposite (Alg-AgNc) beads using sweet basil or Mashmoom (Ocimum basilicum), a common household medicinal herb in Bahrain. The aqueous extract of mashmoom was used as a reducing and stabilizing agent in the reduction of the precursor salt, silver nitrate, and formation of stable AgNPs. The Alg-AgNc beads were prepared by ionotropic gelation of sodium alginate-AgNPs solution in calcium chloride. A strong surface pl [...]

579 2031

Open Access Original Research

Deep Learning Approaches for Predicting Strain Energy in Heterogeneous Materials

Received: 15 July 2025;  Published: 24 October 2025;  doi: 10.21926/rpm.2504016

Abstract

This paper investigates data-driven strain energy prediction for heterogeneous elastic materials using the Mechanical MNIST benchmark dataset (60,000 28 × 28 stiffness maps by precomputed finite-element results). The results by classical regression models (linear regression, random forest, and gradient boosting) using hand-crafted features were compared with the results by the deep learning models (Convolutional neural network (CNN) and residual network (ResNet)) trained end-to-end on images. In held-out tests, CNN [...]

746 2751

Open Access Original Research

Effect of EVA on the Unnotched Impact Toughness of PP/HDPE/EVA Blends

Received: 29 May 2025;  Published: 24 September 2025;  doi: 10.21926/rpm.2503015

Abstract

Beverage bottle caps are usually made from two primary materials: PP and HDPE. In this study, the evaluation criteria were the unnotched impact toughness and the microstructure of PP/HDPE/EVA samples produced by injection molding. The samples were tested according to ASTM D256. PP/HDPE/EVA blends were prepared with various ratios: 47.5/47.5/5, 45/45/10, 42.5/42.5/15, 40/40/20, and 37.5/37.5/25. The results showed that adding EVA to the PP/HDPE blend significantly increased the unnotched impact toughness: from 84.03 [...]

966 4481

Open Access Original Research

Bioremediation of Organic Compounds and Trace Metals from Landfill Leachate Using Lactobacillus kefiri Strains: A Sustainable Approach Based on Facultative Treatment

Received: 09 November 2023;  Published: 16 September 2025;  doi: 10.21926/rpm.2503014

Abstract

The sustainable management of water resources is increasingly recognized as a critical component of environmental conservation and socio-economic development. Among the most challenging aspects of wastewater treatment is the effective remediation of landfill leachate, a complex and highly polluted effluent characterized by high levels of organic matter, ammonia, turbidity, and heavy metals. This study investigates an integrated treatment approach that combines chemical coagulation using aluminum sulfate with a subs [...]

670 3403

Open Access Original Research

Effect of Oil Palm Broom Fiber on the Mechanical Properties of Rice Husk Ash–Blended Concrete

Received: 04 June 2025;  Published: 04 September 2025;  doi: 10.21926/rpm.2503013

Abstract

The high carbon footprint of cement production and the cost and environmental impact of steel reinforcement make conventional concrete unsustainable for long-term use. Reducing cement consumption and identifying sustainable, cost-effective alternatives to steel are critical for lowering construction’s ecological and economic burden. Bio-based supplementary cementitious materials (SCMs), such as rice husk ash (RHA), and natural plant fibers show promise, but prior studies have mostly tested them separately or with v [...]

2725 11642

Open Access Review

Quantum Diamonds and the Future of Advanced Processors, Review on Benefits and Challenges

Received: 09 April 2025;  Published: 03 August 2025;  doi: 10.21926/rpm.2503012

Abstract

Nowadays, the development of advanced processors plays a key role in the progress of humanity and the discovery of new sciences, and quantum computers play an essential role in this regard. In this regard, the development of new generation processors is necessary for the development of quantum computers. Quantum diamonds, with their astonishing properties, especially the presence of nitrogen-vacancy (NV) centers in their crystalline structure, are among the most advanced emerging technologies in the field of quantu [...]

3347 11759

Open Access Review

An Overview of Circular Economy Approaches for Plastics

Received: 28 February 2025;  Published: 28 July 2025;  doi: 10.21926/rpm.2503011

Abstract

Plastic pollution has received worldwide attention due to its extensive environmental and health implications. The circular economy has emerged as a potential solution to plastic pollution. This overview comprehensively presents different plastic circular economy approaches and discusses their advantages, disadvantages, and implementation challenges. It highlights that the current plastic circular economy approaches primarily comprise mechanical recycling, chemical recycling, bio-based and biodegradable plastics, e [...]

2736 25964

Open Access Research Article

Development of Parametric Voronoi-Based Scaffolds for Trabecular Bone Tissue Replacement Using Additive Manufacturing

Received: 07 February 2025;  Published: 28 May 2025;  doi: 10.21926/rpm.2502010

Abstract

Tissue engineering is a technique for regenerating living tissue using portions of the patient's tissue, which are dissociated into cells and cultured on biological or synthetic supports before being transferred to the patient. In this context, the present study seeks to develop implant models (scaffolds) for replacing trabecular bone tissue, with requirements such as porosity and interconnected pores. All design development was aimed at the manufacturing of scaffolds using the material extrusion additive manufactu [...]

1144 6395

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