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Materials, Volume 18, Issue 18

2025 September-2 - 212 articles

Cover Story: Substrate orientation-engineered ZnO optoelectronic synaptic devices fabricated by a sol–gel process exhibit tunable synaptic plasticity and visual memory, advancing neuromorphic computing applications. Polar ZnO on c-plane sapphire exhibits strong internal polarization fields, which accelerate recombination and limit persistent photoconductivity. In contrast, nonpolar ZnO on m-plane sapphire suppresses polarization fields, enabling longer carrier lifetimes and stronger memory retention. The brain-inspired schematic highlights the analogy between presynaptic/post-synaptic signaling and optoelectronic synapse operation, where UV light triggers synaptic responses. This work demonstrates that substrate orientation serves as an effective strategy for enhancing neuromorphic performance in oxide-based optoelectronic devices. View this paper
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Articles (212)

  • Review
  • Open Access
1,012 Views
28 Pages

22 September 2025

Spin waves represent an important class of low-energy excitations in magnetic solids, which influence the thermodynamic properties and play a major role in technical applications, such as spintronics or magnetic data storage. Despite the enormous adv...

  • Article
  • Open Access
757 Views
24 Pages

Compositional Effects on the Performance of High-Permeability Emulsified Asphalt for Prime Coat Applications

  • Zhen Qin,
  • Xiang Liu,
  • Shaopeng Zheng,
  • Simiao Pan,
  • Xiaolong Li,
  • Jingpeng Jia and
  • Hang Xiong

22 September 2025

High-permeability emulsified asphalt has emerged as a promising prime coat for enhancing interlayer bonding in semi-rigid pavement structures. However, its widespread adoption remains limited by insufficient permeability and inconsistent mechanical p...

  • Article
  • Open Access
2 Citations
1,706 Views
24 Pages

22 September 2025

Polyimide (PI) is widely used in aerospace, electronic packaging, and other fields due to its excellent dielectric and thermophysical properties. However, the performance of traditional PI materials under extreme conditions has become increasingly in...

  • Article
  • Open Access
648 Views
18 Pages

Positron Annihilation Studies of Hydrostatically Extruded AA1050 Aluminum

  • Ewa Dryzek,
  • Mirosław Wróbel,
  • Maciej Sarnek and
  • Jacek Skiba

22 September 2025

AA1050 aluminum was hydrostatically extruded at room temperature to true strains of 0.9 and 3.2, and at cryogenic temperature to a true strain of 0.9. As a result of the extrusion process, the yield strength (YS) increased by 130–160% to 120&nd...

  • Article
  • Open Access
1 Citations
1,479 Views
20 Pages

22 September 2025

Recent studies have demonstrated that the utilisation of aluminium in electrical applications has increased substantially, particularly in the context of power cables. The substitution of copper with aluminium in cable fabrication is predominantly dr...

  • Article
  • Open Access
2 Citations
1,004 Views
22 Pages

22 September 2025

Perovskite solar cells (PSCs) have emerged as promising photovoltaic technologies owing to their high power conversion efficiency (PCE) and material versatility. Conventional optimization of PSC architectures largely depends on iterative experimental...

  • Article
  • Open Access
680 Views
22 Pages

Investigation on the Microstructure and Mechanical Properties of FeGa3 Surface Film on SKD11 Substrate

  • Roonie Protasius,
  • Masaki Tanaka,
  • Shigeto Yamasaki,
  • Tatsuya Morikawa,
  • Kazuyuki Yagi,
  • Masahiko Tezuka,
  • Yasufumi Yoshida,
  • Yukinari Yoshida and
  • Makoto Higashionna

22 September 2025

Gallium-based liquid metal is corrosive to steel alloys, forming FeGa3 surface films which can potentially be applied as a solid lubricant to enhance wear resistance and mitigate liquid metal-induced corrosion. However, the characteristics of these f...

  • Article
  • Open Access
868 Views
20 Pages

22 September 2025

Recent studies have confirmed the effectiveness of using natural fibers and fiber-reinforced polymer (FRP) composites as methods to improve the mechanical properties of timber structures. This improvement is particularly evident in static and dynamic...

  • Article
  • Open Access
553 Views
15 Pages

Experimental Study on Mechanical Property of Cemented Backfill in Coal Mine

  • Haigang Yang,
  • Rui Wang,
  • Qiang Zhang,
  • Wencheng Ma and
  • Yukai Wang

22 September 2025

In response to the insufficiency of shear strength and severe segregation of cemented backfilling material in coal mines, a shear strength test, static segregation index test, and homogeneity degree test were carried out, taking slurry concentration...

  • Review
  • Open Access
1 Citations
758 Views
32 Pages

Advances in Dealloying of Ti and Ti-Based Alloys for Biomedical Applications

  • Kirti Tiwari,
  • Deepti Raj,
  • Paola Rizzi and
  • Federico Scaglione

22 September 2025

Dealloying technique has been used for centuries as an attractive method for producing porous surfaces by removing one or more undesirable elements from the surface. Since early 2000s, the technique has been further developed for understanding the de...

  • Article
  • Open Access
995 Views
21 Pages

22 September 2025

The current study presents the development and optimisation of foam glass manufactured from recycled glass shards and expanded ground perlite, targeting enhanced structural and thermal performance for sustainable building applications. By investigati...

  • Article
  • Open Access
1 Citations
831 Views
23 Pages

Advanced Platelet-Rich Fibrin Plus Sealed Exclusively with Glass Ionomer Cement: Setting a New Standard for Healing, Aesthetics and Predictive Modelling in Regenerative Endodontics

  • Dubravka Turjanski,
  • Dragutin Lisjak,
  • Petra Bučević Sojčić,
  • Jelena Valpotić,
  • Tea Borojević Renić,
  • Kristina Goršeta and
  • Domagoj Glavina

22 September 2025

Regenerative endodontic approaches for immature necrotic permanent teeth must balance biological efficacy, clinical practicality and long-term aesthetic outcomes. This study evaluates a novel regenerative protocol using autologous advanced platelet-r...

  • Article
  • Open Access
4 Citations
1,138 Views
26 Pages

22 September 2025

Although substantial knowledge exists regarding the use of ceramic powders as pozzolanic supplementary cementitious materials, a notable gap remains in the literature concerning the durability properties of cement with ceramics. This research aims to...

  • Article
  • Open Access
1 Citations
783 Views
17 Pages

Effects of Thermal Activation on Mechanical Performance and Sustainability of Slag-Based Geopolymers

  • Lais Alves,
  • Nordine Leklou,
  • Fábio de Simone e Souza and
  • Silvio de Barros

22 September 2025

Ground granulated blast furnace slag (GBFS)-based geopolymers represent a viable binder system that combines mechanical efficiency with a significantly lower carbon footprint when compared to conventional Portland cement. This work examines how therm...

  • Article
  • Open Access
1,371 Views
14 Pages

22 September 2025

The SiGe/Si multilayer is a critical component for fabricating stacked Si channel structures for next-generation three-dimensional (3D) logic and 3D dynamic random-access memory (3D-DRAM) devices. Achieving these structures necessitates highly select...

  • Article
  • Open Access
601 Views
17 Pages

22 September 2025

Compared with a traditional distribution transformer with silicon steel sheet as the core material, the no-load loss of an amorphous alloy transformer is greatly reduced due to its core using iron-based amorphous metal material, which has been applie...

  • Article
  • Open Access
1 Citations
777 Views
29 Pages

22 September 2025

The high density of the internal structure of new-generation cementitious composites, such as high-performance and ultra-high-performance concretes, necessitates the use of advanced methods for evaluating their transport properties, particularly thos...

  • Article
  • Open Access
841 Views
13 Pages

A Dual-Layer Frequency Selective Surfaces with Tunable Transmission and Fixed Absorption Bands

  • Zhiming Zhang,
  • Qingyang Wang,
  • Qiyuan Wang,
  • Pei Liu,
  • Yun He and
  • Mingyu Li

22 September 2025

This paper presents dual-layer frequency selective surfaces (FSSs) with frequency division control function through an integrated tunable transmission window at a lower frequency and an absorption performance at a higher frequency. The bottom frequen...

  • Article
  • Open Access
807 Views
15 Pages

22 September 2025

In this study, a green lubricating grease was prepared based on cellulose and epoxidized soybean oil (ESO). The cellulose extracted from the corn stover was functionalized using diphenylmethane diisocyanate (MDI), which enhances its compatibility and...

  • Communication
  • Open Access
1 Citations
657 Views
12 Pages

Experimental Performance Analysis of Large-Format 304 Stainless Steel Surface Laser Matting Process

  • Qianqian Ding,
  • Mingdi Wang,
  • Xihuai Wang,
  • Peijiao Huang,
  • Zirui Wang and
  • Yeyi Ji

22 September 2025

In response to the demand for rapid matte finishing on large-format 304 stainless steel surfaces, this study utilized four fiber laser devices (output wavelength: 1064 nm, output power: 100 W, maximum modulation frequency: 4 kHz) to simultaneously pe...

  • Article
  • Open Access
602 Views
15 Pages

Carbon-Induced Structural Evolution and Synergistic Enhancement of Wear and Corrosion Resistance in (AlFeCoNi)C High-Entropy Alloy Carbide Films

  • Duoli Chen,
  • Yefeng Zhou,
  • Xianting Yang,
  • Mengyuan Guo,
  • Jun Liang,
  • Deming Huang,
  • Yu Ni,
  • Yurong Zhou,
  • Yantao Li and
  • Xin Jiang

22 September 2025

The (AlFeCoNi)C high-entropy alloy carbide films (HECFs) with tunable carbon contents were fabricated by magnetron sputtering to investigate the carbon-driven structural evolution and its coupling effects on mechanical and chemical properties. With i...

  • Article
  • Open Access
1 Citations
742 Views
23 Pages

22 September 2025

Natural sand extraction for concrete manufacturing is a global issue for ecological balance and environmental concerns. This study introduced three mixes with three newly developed sand types to replace natural sand in concrete manufacturing. Additio...

  • Systematic Review
  • Open Access
1 Citations
1,102 Views
28 Pages

Characteristics of Acrylic Produced Additively by 3D Printing in Dentistry: Comparison of Mechanical and Surface Parameters—A Systematic Review with Meta-Analysis of Novel Reports

  • Paweł Szymlet,
  • Maciej Jedliński,
  • Wojciech Frąckiewicz,
  • Aleksandra Jankowska,
  • Aleksandra Wdowiak-Szymanik and
  • Ewa Sobolewska

21 September 2025

Background/Objectives: This systematic review and meta-analysis aimed to compare the mechanical and surface properties of three-dimensional (3D) printed and conventionally polymerized acrylic resins. Methods: A comprehensive search of four electronic...

  • Article
  • Open Access
2 Citations
744 Views
13 Pages

Reduction Study of Carbon-Bearing Briquettes in the System of Multiple Reductants

  • Xiaojun Ning,
  • Zheng Ren,
  • Nan Zhang,
  • Guangwei Wang,
  • Xueting Zhang,
  • Junyi Wu,
  • Jiangbin Liu,
  • Andrey Karasev and
  • Chuan Wang

21 September 2025

Against the backdrop of escalating global carbon emissions, the steel industry urgently requires a transition toward green and low-carbon practices. As a conditionally carbon-neutral renewable energy source, biochar holds potential for replacing trad...

  • Article
  • Open Access
1,559 Views
16 Pages

Bacterial Tolerance and Bioleaching in the Presence of Chloride

  • Narine Vardanyan,
  • Anna Khachatryan,
  • Zaruhi Melkonyan,
  • Nelli Abrahamyan,
  • Sona Barseghyan,
  • Ruiyong Zhang and
  • Arevik Vardanyan

21 September 2025

Chloride ions can enhance the bioleaching of copper minerals, yet most biomining microorganisms are highly sensitive to chloride and cannot survive or colonize mineral surfaces in saline environments. Chloride tolerance varies among acidophilic iron-...

  • Article
  • Open Access
577 Views
22 Pages

Mechanisms for Migration of Alkali in Dolomitic Limestones

  • Xinyu Zhang,
  • Wei Li,
  • Xiaojun Huang,
  • Zhixin Wang and
  • Min Deng

21 September 2025

The alkali–dolomite reaction (ADR) describes the interaction between alkalis in concrete and dolomite which results in dedolomitization, leading to cracking and deterioration of the concrete. A large number of research has explored the chemical...

  • Article
  • Open Access
1 Citations
694 Views
34 Pages

21 September 2025

This study investigates the comparative applicability of Somaloy 700HR 5P and Fe-5.0 wt.%Si powders for axial flux permanent magnet (AFPM) motor cores in low-speed electric vehicles. Optimal forming conditions were derived through Taguchi-based simul...

  • Article
  • Open Access
646 Views
16 Pages

21 September 2025

As the main load-bearing components of engineering structures, regular health assessment of reinforced concrete (RC) columns is crucial for improving the service life and overall performance of the structures. This study focuses on the health detecti...

  • Article
  • Open Access
1 Citations
639 Views
52 Pages

21 September 2025

Viscoelastic relaxation time and frequency spectra are useful for describing, analyzing, comparing, and improving the mechanical properties of materials. The spectra are typically obtained using the stress or oscillatory shear measurements. Over the...

  • Article
  • Open Access
649 Views
19 Pages

Corrosion Behaviors of ZrSi Coating by Laser Cladding on Zr-4 Alloy in High-Temperature Steam

  • Dongliang Jin,
  • Changda Zhu,
  • Xiqiang Ma,
  • Zhengxian Di and
  • Shizhong Wei

21 September 2025

Si powder was deposited onto the surface of Zr-4 alloy via laser cladding to enhance its high-temperature oxidation resistance. The high-power laser radiation and rapid solidification lead to a reaction between Si and Zr, resulting in the formation o...

  • Article
  • Open Access
2 Citations
727 Views
20 Pages

21 September 2025

Biomass reforming under mild conditions for synergistic hydrogen production, driven by renewable solar energy, has rapidly emerged as a promising strategy that not only enables the efficient reutilization of biomass but also facilitates the generatio...

  • Article
  • Open Access
1,063 Views
20 Pages

21 September 2025

To address the insufficient matching between high strength and low elastic modulus in traditional metal bone scaffolds and the issue of secondary surgical removal, this study used degradable zinc magnesium alloy as the material to study the relations...

  • Article
  • Open Access
797 Views
19 Pages

GPR Feature Enhancement of Asphalt Pavement Hidden Defects Using Computational-Efficient Image Processing Techniques

  • Shengjia Xie,
  • Jingsong Chen,
  • Ming Cai,
  • Zhiqiang Cheng,
  • Siqi Wang and
  • Yixiang Zhang

20 September 2025

Hyperbolic reflection features from ground-penetrating radar (GPR) data have been recognized as essential indicators for detecting hidden defects in the asphalt pavement. Computer vision and deep learning algorithms have been developed to detect and...

  • Article
  • Open Access
630 Views
14 Pages

20 September 2025

The aim of this laboratory study was to evaluate the fitting accuracy of complete-arch implant-supported fixed dental prostheses (ISFDPs) and the occurrence of possible constraint forces after ISFDP fixation using the All-on-four treatment concept. A...

  • Article
  • Open Access
616 Views
13 Pages

20 September 2025

Grey cast iron with spheroidal graphite has been known and widely used since the 20th century (since 1947). Numerous methods have been developed for the secondary metallurgy process to produce nodular graphite. Spontaneous crystallization of nodular...

  • Article
  • Open Access
881 Views
15 Pages

Impact Factors on Oven-Dry Density Measurements of Wood

  • Lukas Emmerich,
  • Moritz Kampherm and
  • Christian Brischke

20 September 2025

Wood density is a key property since it affects almost every other property of wood such as its elasto-mechanical, acoustic, thermal, or electrical properties. Hence, it is essential to determine wood density for the interpretation of any other prope...

  • Article
  • Open Access
1 Citations
584 Views
18 Pages

Corrosion on Copper Induced by Biodiesel Surrogates in the Gas Phase: The Effect of the C=C Double Bond

  • Fabiola Vergara-Juarez,
  • Emilio Hernandez-Medina,
  • Jesus Porcayo-Calderon,
  • Macdiel Emilio Acevedo-Quiroz,
  • Jose Trinidad Perez-Quiroz and
  • Alfredo Quinto-Hernandez

20 September 2025

The C=C double bond is a typical feature in biodiesel components associated with their physicochemical behaviors, including metal degradation. In this work, copper was exposed to the gas-phase atmospheres of Methyl Hexanoate (MH) at 145 °C and 25...

  • Article
  • Open Access
2 Citations
1,445 Views
19 Pages

Thermal and Chemical Characterisation of Reprocessed PET: A Study on Commercial, Recycled, Bottle-Grade and Textile Blend

  • Susana Gomes,
  • Ana Pimentel,
  • Maria José Monteiro,
  • Andréa Marinho and
  • Amanda Melo

20 September 2025

The increasing environmental concerns surrounding plastic waste have intensified recycling efforts, particularly in the textile industry, where poly(ethylene terephthalate) (PET) is widely used for sustainable material production. The growing use of...

  • Review
  • Open Access
1 Citations
1,417 Views
43 Pages

20 September 2025

The development of bioactive glasses (BGs) and ceramics, such as β-Tricalcium phosphate (β-TCP), Hydroxyapatite (HAp), and apatite-wollastonite (A-W), has revolutionized regenerative medicine (RM), offering innovative solutions for bone and...

  • Article
  • Open Access
737 Views
29 Pages

Revisiting Tundish Flow Characterization: A Combined Eulerian-Lagrangian Study on the Effects of Dams, Baffles, and Side-Wall Inclination

  • Ali Mostafazade Abolmaali,
  • Mohamad Bayat,
  • Venkata Karthik Nadimpalli,
  • Thomas Dahmen and
  • Jesper Hattel

20 September 2025

This study aims to use Computational Fluid Dynamics (CFD) analysis to improve inclusion removal efficiency in tundishes used in the steelmaking industry, with the broader goal of promoting more sustainable steel production and supporting circular eco...

  • Article
  • Open Access
1 Citations
685 Views
12 Pages

Effect of Process Conditions on Microstructure, Damping Capacity, and Mechanical Properties of Mn-Cu Alloys

  • Liyan Dong,
  • Qiangsong Wang,
  • Yuan Wu,
  • Haofeng Xie,
  • Junru Gao,
  • Xinlu Chai and
  • Kexing Song

20 September 2025

This study investigated the effects of four heat treatment processes on the microstructure, damping capacity, and mechanical properties of Mn-Cu alloys. The results indicated that the alloy did not undergo spinodal decomposition and twinning after so...

  • Article
  • Open Access
1 Citations
698 Views
15 Pages

19 September 2025

This study applies statistical approaches utilizing linear regression and artificial neural networks (ANNs) to predict the corrosion behavior of austenitic stainless steels (316L, 904L, and AL-6XN) under various environmental conditions. The environm...

  • Article
  • Open Access
4 Citations
915 Views
22 Pages

19 September 2025

Recent advances in energy conversion technologies, especially solar-driven photocatalytic water splitting, are vital for satisfying the increasing global need for sustainable and clean energy. Perovskite oxides have attracted considerable attention a...

  • Article
  • Open Access
1 Citations
860 Views
12 Pages

19 September 2025

Existing studies on chloride ion transport in concrete under compressive load had rarely incorporated the influence of the dry–wet time ratio, even though this ratio was a key factor affecting chloride penetration in coastal concrete structures...

  • Article
  • Open Access
1 Citations
922 Views
27 Pages

Recycled Materials and Lightweight Insulating Additions to Mixtures for 3D Concrete Printing

  • Marcin Maroszek,
  • Magdalena Rudziewicz,
  • Karina Rusin-Żurek,
  • Izabela Hager and
  • Marek Hebda

19 September 2025

Three-dimensional concrete printing (3DCP) is advancing rapidly, yet its sustainable adoption requires alignment with circular-economy principles. This study evaluates the substitution of natural aggregates with recycled constituents, 3DCP waste, bri...

  • Article
  • Open Access
1 Citations
872 Views
41 Pages

Simulation-Based Study on the Performance of NSM-CFRP Strengthening in Prestressed Concrete T-Beams Under Seismic Loading

  • Yanuar Haryanto,
  • Hsuan-Teh Hu,
  • Anggun Tri Atmajayanti,
  • Fu-Pei Hsiao,
  • Laurencius Nugroho and
  • Nanang Gunawan Wariyatno

19 September 2025

Prestressed concrete structures are facing serviceability challenges due to rising live loads, material degradation, and seismic demands. Retrofitting with carbon fiber-reinforced polymer (CFRP) offers a cost-effective alternative to full replacement...

  • Article
  • Open Access
1 Citations
726 Views
15 Pages

19 September 2025

Age-related macular degeneration (AMD) represents a leading cause of irreversible blindness in the elderly, primarily by choroidal neovascularization (CNV) leakage. While intravitreal injections of anti-angiogenic antibodies (e.g., aflibercept) provi...

  • Article
  • Open Access
1 Citations
1,295 Views
18 Pages

Low-Cost Scalable Radiative Cooling Membrane via Spray Fabrication for Sustainable Thermal Management

  • Liang Lv,
  • Jiaqi Hu,
  • Ruichen Song,
  • Xusheng Xia,
  • Zhilin Xia and
  • Siyuan Yu

19 September 2025

Radiative cooling presents a promising passive cooling strategy, though its widespread adoption is often constrained by elevated costs and manufacturing complexities. This study introduces a cost-effective, scalable fabrication method for a composite...

  • Article
  • Open Access
535 Views
19 Pages

19 September 2025

To implement predictive maintenance of units in the practice of metallurgical manufacturers, computer information and diagnostic systems are being developed to assess the current state of individual units throughout their entire life cycle. This publ...

  • Article
  • Open Access
2 Citations
761 Views
19 Pages

Metrological Comparison of Indirect Calibration Methods for Nanoindentation: A Bootstrap-Based Approach

  • Giacomo Maculotti,
  • Lorenzo Giorio,
  • Gianfranco Genta and
  • Maurizio Galetto

19 September 2025

Area shape function and frame compliance are the most critical parameters in nanoindentation, as they control measurement accuracy and represent the largest contributions to measurement uncertainty. Despite the availability of direct calibration meth...

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Materials - ISSN 1996-1944