Journal of Materials Science & Technology最新文献

{"title":"TiN nanofiber metacomposites for efficient electromagnetic wave absorption: Insights on multiple reflections and scattering effects","authors":"Yahong Zhang, Lu Zhang, Haoxu Si, Yi Zhang, Cuiping Li, Lei Zhang, Jingwei Zhang, Chunhong Gong","doi":"10.1016/j.jmst.2025.01.046","DOIUrl":"https://doi.org/10.1016/j.jmst.2025.01.046","url":null,"abstract":"The exploration of remarkable electromagnetic wave (EMW) absorbing materials with temperature-stable absorbing properties at a wide temperature range holds significant implications for both military operations and civilian life. Herein, the titanium nitride/zirconium oxide/carbon (TiN/ZrO₂/C) ternary nanofiber membranes have been synthesized by electrospinning followed by preoxidation-nitridation process. Thanks to the flexibility of the prepared ceramic membranes, the corresponding metacomposites, characterized by a unique hierarchical structure, were fabricated through the systematic incorporation of subwavelength scale functional units (square fiber membranes) within a polydimethylsiloxane (PDMS) matrix. This approach effectively expanded the transmission path of EMW, contributing to additional multiple reflections and scattering within the system. As a result, when the content of the functional units was as low as 10.0 wt%, the engineered metacomposites exhibited exceptional EMW absorption properties across a broad temperature range (298–573 K). This performance can be attributed to the synergistic effects of optimized impedance matching and enhanced attenuation capacity. Furthermore, the metacomposites achieved a minimum reflection loss (RL) value of −51.7 dB at 453 K, with an effective absorption bandwidth (EAB) spanning 2.3 GHz. This study may serve as a valuable reference for the design of high attenuation capacity EMW absorbing materials under complex variable high-temperature conditions.","PeriodicalId":16154,"journal":{"name":"Journal of Materials Science & Technology","volume":"82 1","pages":""},"PeriodicalIF":10.9,"publicationDate":"2025-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143653582","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Microneedle for acne treatment: Recent advances in materials and technologies","authors":"Han Zheng, Pengxian Wang, Nian Liu, Miao Han, Tianpeng Xu, Shuai Zhao, Yuhe Yang, Xin Zhao, Li Peng","doi":"10.1016/j.jmst.2024.12.099","DOIUrl":"https://doi.org/10.1016/j.jmst.2024.12.099","url":null,"abstract":"Acne vulgaris is one of the most common skin disorders affecting millions of patients worldwide, its long-lasting inflammation greatly reduces life quality and causes negative psychosocial impacts. Conventional treatments often along with side effects and issues of patient compliance, and ineffective in treating severe conditions. In recent years, microneedle (MN) has emerged as a versatile therapeutic technology, owing to its minimally invasive, effective, and reduced side effects. However, there are few review articles that systematically summarize the progress of microneedles for the treatment of acne. Here conclude the material, function, and application of microneedle technology in the treatment of acne, with a particular focus on two types of anti-acne microneedle: drug-loaded microneedle (DMN) and radio-frequency microneedle (RMN). DMN facilitates targeted drug delivery to the skin's deeper layers, while RMN utilizes radio-frequency currents to stimulate collagen regeneration, thus addressing acne scarring. Additionally, future directions for advanced acne-treating microneedle technology are envisioned, such as diversified drug loading, multi-functionality, production process optimization, and personalized treatment. These different directions are expected to further enhance the safety, efficacy, and patient satisfaction of microneedle acne treatments.","PeriodicalId":16154,"journal":{"name":"Journal of Materials Science & Technology","volume":"22 1","pages":""},"PeriodicalIF":10.9,"publicationDate":"2025-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143640818","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Uncovering the hardening mechanism of multi-component carbide ceramics based on the coupling effect of covalent bond enhancement and lattice distortion","authors":"Qingyi Kong, Qinchen Liu, Lei Chen, Sijia Huo, Kunxuan Li, Mingxuan Mao, WeiWei Sun, Yujin Wang, Suk-Joong L. Kang, Yu Zhou","doi":"10.1016/j.jmst.2025.01.041","DOIUrl":"https://doi.org/10.1016/j.jmst.2025.01.041","url":null,"abstract":"The hardening mechanism of multi-component carbide ceramic has been investigated in detail through a combination of experiments, first-principles calculations, and ab initio molecular dynamics (AIMD). Eight dense carbide ceramics were prepared by spark plasma sintering. Compulsorily, all the multi-component carbide samples have similar carbon content, grain size, and uniform compositional distribution by optimizing the sintering process and adjusting the initial raw materials. Hence the interference of other factors on the hardness of multi-component carbide ceramics is minimized. The effects of changes in the elemental species on the lattice distortion, bond strength, bonding properties, and electronic structure of multi-component carbide ceramics were thoroughly analyzed. These results show that the hardening of multi-component carbide ceramic can be attributed to the coupling of solid solution strengthening caused by lattice distortion and covalent bond strengthening. Besides, the “host lattice” of multi-component carbide ceramics is defined based on the concept of supporting lattice. The present work is of great significance for a deeper understanding of the hardening mechanism of multi-component carbide ceramics and the design of superhard multi-component carbides.","PeriodicalId":16154,"journal":{"name":"Journal of Materials Science & Technology","volume":"55 1","pages":""},"PeriodicalIF":10.9,"publicationDate":"2025-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143653579","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Giant charge trapping in 2D layered oxide nanosheets via intrinsic quantum wells","authors":"Kyungjune Cho, Haena Yim, Gahui Park, Jiwoo Yang, So-Yeon Yoo, Jongwoo Nam, Minwoo Song, Deok-Hwang Kwon, Keehoon Kang, Takhee Lee, Ji-Won Choi, Seungjun Chung","doi":"10.1016/j.jmst.2025.01.042","DOIUrl":"https://doi.org/10.1016/j.jmst.2025.01.042","url":null,"abstract":"The atomically thin nature of two-dimensional (2D) layered materials makes them susceptible to charge trapping by randomly created disorders, adversely affecting carrier dynamics such as charge transport and exciton lifetime. Typically, these disorders lead to poor device performance or require additional space to mitigate performance degradation. In this study, we investigate 2D layered Dion–Jacobson (DJ)-phase oxide perovskite nanosheets, which exhibit charge trapping within their well-defined quantum well (QW) structures, resulting in unique tailoring of electrical conductivity and photoconductivity. These DJ-phase perovskites, composed of tunable atomic constituents, demonstrate resonant tunneling and anomalous charge trapping due to their ultra-clean QWs. Remarkably, the conductivity of insulating HSr₂Nb₃O₁₀ (HSNO) increased over 1000 times upon applying voltage without additional treatments. We observed persistent photoconductivity in 2D vertical heterostructure devices, attributed to charge trapping in QWs, and demonstrated artificial synaptic behaviours in a single flake with tailored energy consumption. Varying the number of perovskite layers significantly allows the tunability of the energy bandgap. This study also highlights the high tunability of 2D perovskite nanosheets, promising various applications, including magnetic, high-k dielectric, and resistive switching devices. Our findings suggest a new class of ionic layered materials with great potential as novel two-dimensional building blocks for device applications.","PeriodicalId":16154,"journal":{"name":"Journal of Materials Science & Technology","volume":"15 1","pages":""},"PeriodicalIF":10.9,"publicationDate":"2025-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143640819","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effects of picosecond laser ablation and surface modification on the surface/interface characteristics and removal performance of 4H-SiC","authors":"Qixian Zhang, Kangsen Li, Xiong Zhang, Rui Gao, Chi Fai Cheung, Chunjin Wang","doi":"10.1016/j.jmst.2025.01.043","DOIUrl":"https://doi.org/10.1016/j.jmst.2025.01.043","url":null,"abstract":"Silicon carbide (SiC) is a highly valued material for power semiconductor devices due to its wide bandgap, high thermal conductivity, and high breakdown electric field. However, its high hardness, brittleness, and chemical stability present substantial challenges for efficient and high-quality processing. This study investigated the effects of picosecond laser surface scanning on 4H-SiC to enhance the material removal performance. The research focused on surface morphology, phase transitions, subsurface/interface characteristics, and material removal mechanisms under varying laser parameters. The results demonstrate that the laser thermal effect decomposes 4H-SiC into amorphous silicon (a-Si), disordered carbon, and graphite, forming a resolidified layer containing Si-O and Si-C-O oxides. Crystalline silicon (c-Si) is produced under high fluences or extensive irradiations. The variation in the resolidified layer thickness with changing laser parameters is revealed. A detailed laser-induced subsurface damage model is developed, encompassing a resolidified layer that includes the above decomposition and oxidation products, and a deformed layer formed primarily under laser-induced stress. The presence of the resolidified layer and the deformed layer leads to a decreased elastic recovery rate and an increased scratching depth, exceeding 2.5 times that of the unmodified condition. Enhanced material removal performance is mainly driven by the resolidified layer at low fluence and by the deformed layer at high fluence. When aligning the total of the ablation depth and resolidified layer thickness with the subsurface damage depth in the original material, excellent polishing performance is achieved. These findings provide critical insights for understanding the phase evolution, subsurface damage mechanisms, and material removal behavior of 4H-SiC, offering valuable guidance for optimizing the laser surface modification parameters to achieve high-efficiency processing.","PeriodicalId":16154,"journal":{"name":"Journal of Materials Science & Technology","volume":"27 1","pages":""},"PeriodicalIF":10.9,"publicationDate":"2025-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143640821","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A stable S-scheme heterojunction for sustainable photoelectrochemical cathodic protection of nickel-phosphorus-coated magnesium alloy","authors":"Yu Wen, Yue Liu, Yanghua Teng, Qiwen Yong, Dongmei Pu, Xiaoqiang Fan, Zhi-Hui Xie","doi":"10.1016/j.jmst.2025.02.024","DOIUrl":"https://doi.org/10.1016/j.jmst.2025.02.024","url":null,"abstract":"A novel and long-lasting N₃BD/TiO₂ composite photoanode with stable and superior photoelectrochemical and photoelectrochemical cathodic protection (PECCP) performances was achieved by synthesizing and depositing covalent organic framework (N₃BD) on titanium oxide (TiO₂) nanotube arrays. The composite's increased visible light absorption capability enhanced the galvanic corrosion protection of nickel-phosphorus alloy-coated magnesium alloy (Mg/Ni) through PECCP technology. The open circuit potential (OCP) drops of the Mg/Ni electrode coupling with the N₃BD/TiO₂ composite were 310 and 630 mV at dark state and under illumination, respectively. They remained relatively stable under intermittent visible light irradiation within 72 h, demonstrating excellent long-term stability. The superior photoelectrochemical and PECCP properties of the N₃BD/TiO₂ are attributed to forming S-scheme heterojunctions, which effectively promote the separation and transfer of photogenerated electron-hole pairs and retain a strong redox capacity. This finding provides new insight into the design and synthesis of COF-modified photoanode with highly efficient and stable photoelectrochemical and PECCP performances.","PeriodicalId":16154,"journal":{"name":"Journal of Materials Science & Technology","volume":"33 1","pages":""},"PeriodicalIF":10.9,"publicationDate":"2025-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143640820","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Improving the damping capacity of NiTiHf alloys with nanoscale spherical Nb phases","authors":"Siwen Zhang, Quan Li, Yan Xu, Meimei Wang, Guangfa Huang, Mingjiang Jin, Yuntian Zhu, Weijie Lu","doi":"10.1016/j.jmst.2025.02.023","DOIUrl":"https://doi.org/10.1016/j.jmst.2025.02.023","url":null,"abstract":"Shape memory alloys (SMAs) are well-suited for vibration and noise reduction due to their outstanding mechanical and damping properties. However, their damping capacity is limited due to low-temperature stabilized thermoelastic martensite and constrained twin migration. This work designs nanoscale Nb phases to enhance the damping capacity and maintain a wide working temperature range of NiTiHf-based SMAs. The NiTiHf/Nb alloys containing spherical Nb phases demonstrate a 125% improvement in internal friction (IF) and remain stable up to 400 K. Alloys with spherical Nb phases exhibit high migration ability for martensitic twinning, resulting in a relatively high intrinsic IF. High-resolution transmission electron microscopy images and IF spectra suggest spherical Nb phase introduces additional dislocation damping effects and interface damping effects by inducing multiple types of dislocations near the multi-directional phase interfaces. These findings provide insights into the role of second-phase shape effects in damping properties and offer valuable guidance for designing ultra-high damping alloys.","PeriodicalId":16154,"journal":{"name":"Journal of Materials Science & Technology","volume":"183 1","pages":""},"PeriodicalIF":10.9,"publicationDate":"2025-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143640823","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Achieving superior high-temperature strength and ductility in near-α titanium alloys by in-situ silicide formation","authors":"Sisi Tang, Jinlong Su, Li Li, Yong Han, Swee Leong Sing, Jinglian Fan","doi":"10.1016/j.jmst.2024.12.097","DOIUrl":"https://doi.org/10.1016/j.jmst.2024.12.097","url":null,"abstract":"Near-α titanium (Ti) alloys are promising high-temperature (HT) structural materials for aerospace and automotive applications due to their superior specific HT strength and creep resistance. Nevertheless, improving the synergy between strength and ductility at HTs, and thereby expanding the operating temperature range, remains a key challenge in advancing the HT application potential of near-α Ti alloys. Herein, a novel in-situ silicide formation strategy is proposed to achieve superior high-temperature strength and ductility synergy in near-α Ti alloys. Specifically, this strategy is realized through fabricating hypoeutectoid and hypereutectoid TA15 alloys (Ti-6.5Al-2Zr-1Mo-1V, wt.%) containing 0.5 and 1.0 wt.% silicon (Si) via spark plasma sintering (SPS). Results indicate that Si alloying significantly enhances the HT strength of the TA15 alloy without compromising its HT ductility. At 500°C, TA15 alloy with 1.0 wt.% Si achieves a tensile strength of 937.8 MPa with a break elongation of 17.5%, showing superior strength-ductility synergy over most commercial near-α Ti alloys and Ti matrix composites. The superior HT strength-ductility synergy of the Si-containing alloys is attributed both to the silicides in-situ formed during SPS and to additional silicides in-situ formed during HT deformation. Additionally, adding 1.0 wt.% Si into TA15 alloy deteriorated the room-temperature ductility while having no adverse effect on the HT ductility, highlighting the temperature-dependent effects of intergranular silicides on mechanical properties. Furthermore, quantitative analysis of HT strengthening mechanisms is performed, providing insights for designing near-α Ti alloys for HT structural applications.","PeriodicalId":16154,"journal":{"name":"Journal of Materials Science & Technology","volume":"55 1","pages":""},"PeriodicalIF":10.9,"publicationDate":"2025-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143640822","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Constructing surface oxygen vacancy-rich ln2O3-x/tubular carbon nitride S-scheme heterojunction for selective biomass-derivative oxidation coupled with H2 production","authors":"Xukai Xia, Yanyan Jia, Weikang Wang, Jifang Zhang, Lele Wang, Qinqin Liu","doi":"10.1016/j.jmst.2024.12.093","DOIUrl":"https://doi.org/10.1016/j.jmst.2024.12.093","url":null,"abstract":"The integration of selective oxidation of renewable biomass and its derivatives with hydrogen (H₂) production holds significant potential for simultaneously yielding value-added chemicals and “green H₂”, contributing to addressing sustainability challenges. The S-scheme charge transfer mechanism enhances charge separation by maintaining strong redox potentials at both ends, facilitating both oxidation and reduction reactions. Herein, we synthesize a visible-light-responsive, oxygen vacancy-rich In₂O_3-<em>_x</em>/tubular carbon nitride (IO_OV/TCN) S-scheme heterojunction photocatalyst via electrostatic adherence for selective 5-hydroxymethylfurfural (HMF) oxidation to 2,5-diformylfuran (DFF) and 2,5-furandicarboxylic acid (FDCA), alongside H₂ production. Under anaerobic conditions and visible-light irradiation, the optimal IO_OV/TCN-10 catalyst achieves an HMF conversion of 94.8% with a selectivity of 53.6% for DFF and FDCA, and a H₂ yield of 754.05 μmol g⁻¹ in 3 h. The significantly improved photocatalytic activity results from enhanced visible-light absorption, reduced carrier recombination, and abundant catalytic active sites due to the synergistic effect of surface oxygen vacancies, the hollow nanotube-based architecture, and the S-scheme charge transfer mechanism. This work highlights the great potentials of S-scheme heterojunctions in biomass conversion for sustainable energy use and chemical production.","PeriodicalId":16154,"journal":{"name":"Journal of Materials Science & Technology","volume":"47 1","pages":""},"PeriodicalIF":10.9,"publicationDate":"2025-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143627564","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Enhanced precipitation strengthening of D024 precipitates in a nanograined Fe-Ni based alloy","authors":"D.Y. Liu, N.R. Tao","doi":"10.1016/j.jmst.2025.02.022","DOIUrl":"https://doi.org/10.1016/j.jmst.2025.02.022","url":null,"abstract":"Realizing the greater potential for precipitation strengthening in nanograined alloys is highly desirable but often challenging. In this study, an Fe-Ni based alloy was subjected to plastic deformation followed by aging treatment to further strengthen nanograins through high-density precipitates. Microstructural characterization showed that nanograins account for ∼64% of the volume, with an average size of 44 nm. Notably, the nanoprecipitates in the nanograins exhibit utterly different characteristics from those in the coarse grains. As a result, the sample has an ultra-high yield strength of 1677 MPa. Further analyses indicated that the D0₂₄-structured nanoprecipitates at the nanograin boundaries provide a greater precipitation strengthening than conventional L1₂-structured nanoprecipitates within the coarse grains, the reason of which is that the precipitates inhibit partial dislocation emission and grain boundary migration of the nanograins. This work deepens the understanding of precipitation strengthening in nanograined materials and proposes a novel strategy to further strengthen nanograined alloys.","PeriodicalId":16154,"journal":{"name":"Journal of Materials Science & Technology","volume":"53 1","pages":""},"PeriodicalIF":10.9,"publicationDate":"2025-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143627565","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}