Journal of Materials Science & Technology最新文献

Mechanistic insights in electrochemical C–N coupling reactions to urea 电化学C-N偶联反应对尿素的机理研究

IF 10.9 1区材料科学

Journal of Materials Science & Technology Pub Date : 2026-04-24 DOI: 10.1016/j.jmst.2026.03.079

Jing Zhang, Qingqing Zhang, Beibei Xu, Rengui Li, Guanna Li, Johannes Hendrik Bitter

{"title":"Mechanistic insights in electrochemical C–N coupling reactions to urea","authors":"Jing Zhang, Qingqing Zhang, Beibei Xu, Rengui Li, Guanna Li, Johannes Hendrik Bitter","doi":"10.1016/j.jmst.2026.03.079","DOIUrl":"https://doi.org/10.1016/j.jmst.2026.03.079","url":null,"abstract":"Electrochemical C–N coupling has emerged as a transformative approach for converting carbon dioxide (CO2) and nitrate pollutants or atmospheric nitrogen (N2) into high-value compounds such as urea, thus simultaneously mitigating environmental impacts and enabling resource recovery. To bridge fundamental insights to practical applications and guide the rational design of catalysts, a clear mechanistic understanding of electrochemical C–N coupling reactions is crucial. However, despite recent advances, a comprehensive understanding of the atomistic reaction pathways remains underdeveloped. This review focuses on elucidating the fundamental mechanisms governing C–N bond formation, with an emphasis on dominant pathways for CO2/nitrate and CO2/N2 coupling reactions. Through analysis of experimental and theoretical case studies, we identified the key reactive intermediates (*CO, *NH2, *NO2, *NO, *N2) during the reaction process. Special attention is given to the role of catalyst microstructure to steer the reaction selectivity and efficiency via the change in key intermediate. This review provides a systematic overview of C–N coupling mechanisms by reconciling experimental evidence with theoretical descriptors, addressing a critical gap in the field.","PeriodicalId":16154,"journal":{"name":"Journal of Materials Science & Technology","volume":"28 1","pages":""},"PeriodicalIF":10.9,"publicationDate":"2026-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147751566","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}

引用次数: 0

Thermomechanical engineering of nano-twin and dislocation structures for strength-ductility synergy in metastable high-entropy alloys 亚稳高熵合金中纳米孪晶和位错结构强度-延性协同效应的热力学工程

IF 10.9 1区材料科学

Journal of Materials Science & Technology Pub Date : 2026-04-23 DOI: 10.1016/j.jmst.2026.04.021

Mengjiao Xue, Heng Zhang, Minjie Lai

{"title":"Thermomechanical engineering of nano-twin and dislocation structures for strength-ductility synergy in metastable high-entropy alloys","authors":"Mengjiao Xue, Heng Zhang, Minjie Lai","doi":"10.1016/j.jmst.2026.04.021","DOIUrl":"https://doi.org/10.1016/j.jmst.2026.04.021","url":null,"abstract":"Achieving an excellent strength-ductility synergy remains a central challenge for metastable face-centered cubic (FCC) high-entropy alloys (HEAs). In this study, a thermomechanical processing route consisting of warm rolling followed by annealing was employed to introduce pre-designed defect architectures into two metastable HEAs: a transformation-induced plasticity Cr20Mn20Fe20Co34.5Ni5C0.5 HEA and a transformation- and twinning-induced plasticity Cr20Mn20Fe20Co34Ni5C1 HEA. This processing produces unrecrystallized microstructures containing high densities of nano-twins and dislocations, leading to substantial yield strength enhancement while retaining good ductility compared with fully recrystallized counterparts. The C1 HEA achieves a higher yield strength of 1174 MPa with a total elongation of 22.2%, whereas the C0.5 HEA exhibits a lower yield strength of 894 MPa but a higher total elongation of 31.9%. Differences in mechanical response are associated with distinct deformation-induced microstructural evolution during tensile loading. In the C0.5 HEA, a higher fraction of deformation-induced martensite with multiple variants is developed, whereas in the C1 HEA, the transformation is more limited and predominantly involves single-variant martensite, which is associated with lower strain hardenability. These results demonstrate that tailoring defect structures via thermomechanical processing provides an effective pathway for optimizing the strength-ductility synergy in metastable FCC HEAs.","PeriodicalId":16154,"journal":{"name":"Journal of Materials Science & Technology","volume":"259 1","pages":""},"PeriodicalIF":10.9,"publicationDate":"2026-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147751567","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}

引用次数: 0

Tuning the band offsets and Schottky barrier heights in diamond devices through termination modulation 通过终端调制调谐金刚石器件中的频带偏移和肖特基势垒高度

IF 10.9 1区材料科学

Journal of Materials Science & Technology Pub Date : 2026-04-22 DOI: 10.1016/j.jmst.2026.04.016

Jiaren Feng, Qingzhong Gui, Tongtong Wang, Taiqiao Liu, Wei Yu, Hong Zhou, Xi Tang, Yuzheng Guo, Sheng Liu, Zhaofu Zhang

{"title":"Tuning the band offsets and Schottky barrier heights in diamond devices through termination modulation","authors":"Jiaren Feng, Qingzhong Gui, Tongtong Wang, Taiqiao Liu, Wei Yu, Hong Zhou, Xi Tang, Yuzheng Guo, Sheng Liu, Zhaofu Zhang","doi":"10.1016/j.jmst.2026.04.016","DOIUrl":"https://doi.org/10.1016/j.jmst.2026.04.016","url":null,"abstract":"Diamond demonstrates significant application potential in electronic devices owing to its excellent properties, yet its practical application is often limited by interface challenges in precisely controlling its interfacial electronic properties. This study demonstrates that surface termination engineering serves as a potential strategy for effectively modulating the electron affinity (EA) of diamond, thereby tuning the band offsets and Schottky barrier heights (SBHs) at its interfaces. By constructing 24 distinct diamond termination models, the EA of diamond can be tuned from −3.95 to 2.71 eV, governed by the combined effects of surface dipole moment and gap states. Furthermore, the terminated diamond forms a charge-blocking layer at the heterojunction interface, thereby largely preserving the original band positions. Consequently, a linear modulation of the band offset from 0.58 to 4.34 eV is accomplished by integrating β-Ga2O3 with 12 different diamond terminations. For metal/diamond contacts, an SBH adjustment from −0.78 to 2.14 eV is achieved at Pt/diamond interfaces by employing different terminations. Notably, the introduction of surface-state-free terminations effectively suppresses metal-induced gap states, thereby achieving significant Fermi-level depinning. This work elucidates the underlying mechanism of termination-induced EA tuning and establishes a paradigm for quantitative band offset and SBH control, providing critical guidance for the rational design of high-performance diamond-based devices.","PeriodicalId":16154,"journal":{"name":"Journal of Materials Science & Technology","volume":"20 1","pages":""},"PeriodicalIF":10.9,"publicationDate":"2026-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147735651","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}

引用次数: 0

Self-healing SiBCN/SiC dual-phase matrix design for oxidation-resistant, electromagnetic wave absorbing SiC fiber-reinforced composites 抗氧化、电磁波吸收SiC纤维增强复合材料的自修复SiBCN/SiC双相基体设计

IF 10.9 1区材料科学

Journal of Materials Science & Technology Pub Date : 2026-04-22 DOI: 10.1016/j.jmst.2026.04.017

Subo Zhang, Chunjing Liao, Yanmei Kan, Han Luo, Xiaowu Chen, Mengli Xiao, Hui Huang, Tianyuan Jiang, Shaoming Dong, Liwei Mi

{"title":"Self-healing SiBCN/SiC dual-phase matrix design for oxidation-resistant, electromagnetic wave absorbing SiC fiber-reinforced composites","authors":"Subo Zhang, Chunjing Liao, Yanmei Kan, Han Luo, Xiaowu Chen, Mengli Xiao, Hui Huang, Tianyuan Jiang, Shaoming Dong, Liwei Mi","doi":"10.1016/j.jmst.2026.04.017","DOIUrl":"https://doi.org/10.1016/j.jmst.2026.04.017","url":null,"abstract":"Developing ceramic matrix composites that combine structural reliability, long-term oxidation resistance, and electromagnetic absorption (EMA) remains a key challenge for high-temperature systems. Here, SiC fiber-reinforced ceramic matrix composites (SiC<ce:inf loc=\"post\">f</ce:inf>/CMCs) with a SiBCN/SiC dual-phase matrix are fabricated to clarify how oxidation in the 800–1000°C range influences EMA behavior. Oxygen preferentially diffuses along cracks and pores to form a multiscale layered SiBCN/SiO<ce:inf loc=\"post\">2</ce:inf>/h-BN structure that acts as a protective barrier, giving only 0.95% mass loss and 86.1% flexural strength retention after 200 h at 1000°C. The associated heterogeneous interfaces enhance polarization relaxation and intrinsic attenuation, but not the overall EMA performance. After oxidation at 1000°C, the X-band effective absorption bandwidth decreases from 2.48 to 1.82 GHz. The attenuation capability remains largely recoverable upon cooling after high-temperature dielectric testing. Radar cross-section simulations further indicate preserved suppression of electromagnetic scattering before and after oxidation. This work provides guidance for designing load-bearing ceramic composites with retained electromagnetic functionality in oxidative high-temperature environments.","PeriodicalId":16154,"journal":{"name":"Journal of Materials Science & Technology","volume":"18 1","pages":""},"PeriodicalIF":10.9,"publicationDate":"2026-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147736311","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}

引用次数: 0

Environmentally friendly high-performance electronic skin for intelligent human–machine interaction systems with feedback capabilities 具有反馈功能的智能人机交互系统的环保高性能电子皮肤

IF 10.9 1区材料科学

Journal of Materials Science & Technology Pub Date : 2026-04-22 DOI: 10.1016/j.jmst.2026.03.077

Shixiang Wu, Penghui Li, Kunpeng Li, Qikai Guo, Yang Li

{"title":"Environmentally friendly high-performance electronic skin for intelligent human–machine interaction systems with feedback capabilities","authors":"Shixiang Wu, Penghui Li, Kunpeng Li, Qikai Guo, Yang Li","doi":"10.1016/j.jmst.2026.03.077","DOIUrl":"https://doi.org/10.1016/j.jmst.2026.03.077","url":null,"abstract":"With the rapid advancement of flexible electronics and artificial intelligence, high-performance electronic skin (e-skin) has emerged as a vital platform for real-time health monitoring and intelligent human-machine interfaces. Given the increasing complexity of future application scenarios, the development of next-generation e-skin technologies places higher demands on the multifunctionality, biocompatibility, and biodegradability of sensing units. In this work, a silk fibroin e-skin (SFES) that integrates a capacitive e-skin (CPES) and an electromyographic e-skin (EMES) is proposed. The CPES, composed exclusively of silk fibroin ionic aerogel (SFIA) and a thin silver layer, features a minimalist architecture and a high specific surface area, achieving a remarkable tactile sensitivity (14.19 kPa⁻<ce:sup loc=\"post\">1</ce:sup>), a broad detection range (0.6 Pa–40 kPa), and an ultrafast response time (5.6 ms). Meanwhile, the EMES module, which is composed of SFIA and silver electrodes, can operate independently when attached to the skin, enabling precise acquisition of physiological electrical signals. By integrating CPES and EMES, the SFES achieves multifunctional sensing and adaptive performance across diverse application scenarios. When further combined with a 1D convolutional neural network (1D-CNN) and a human-machine interaction interface, the SFES enables an intelligent bidirectional interaction system capable of gesture recognition, real-time control of virtual avatars, and immediate feedback to the user. Moreover, cell culture and degradation experiments confirm the outstanding biocompatibility and degradability of the SFES materials. This work thus provides new insights into the development of sustainable e-skin technologies and offers a promising strategy for next-generation intelligent human-machine interfaces.","PeriodicalId":16154,"journal":{"name":"Journal of Materials Science & Technology","volume":"98 1","pages":""},"PeriodicalIF":10.9,"publicationDate":"2026-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147736312","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}

引用次数: 0

Enhanced machinability of additively manufactured Ti-5553 tailored with Mo Mo定制增材制造Ti-5553的可加工性提高

IF 10.9 1区材料科学

Journal of Materials Science & Technology Pub Date : 2026-04-22 DOI: 10.1016/j.jmst.2026.04.020

Chi-Ho Ng, M. Adeel Zafar, Mandeep Singh, Matthew S. Dargusch, Michael J. Bermingham

{"title":"Enhanced machinability of additively manufactured Ti-5553 tailored with Mo","authors":"Chi-Ho Ng, M. Adeel Zafar, Mandeep Singh, Matthew S. Dargusch, Michael J. Bermingham","doi":"10.1016/j.jmst.2026.04.020","DOIUrl":"https://doi.org/10.1016/j.jmst.2026.04.020","url":null,"abstract":"Tailoring the composition of titanium alloys with strategic additives to refine microstructure and enhance performance is a promising approach to overcome limitations associated with conventional alloy systems. Among these, molybdenum (Mo) has recently emerged as a potent bifunctional additive that promotes grain refinement, reduces phase heterogeneity, and improves the strength and ductility of Ti-5Al-5Mo-5V-3Cr (Ti-5553), a widely used aerospace alloy. However, the impact of Mo addition on the alloy’s machinability remains unexplored. This study evaluates the machinability of Ti-5553 modified with 5 wt.% Mo, produced via laser powder bed fusion (L-PBF), with a focus on cutting forces, tool wear, surface integrity, and chip morphology. With Mo addition, the tool flank wear reduced by a factor of three compared to Ti-5553, cutting forces stabilised, and the machined surface roughness reduced by nearly 50%. Furthermore, chip morphology reveals smoother, less serrated features in the Ti-5553+5Mo alloy, indicative of more stable shear behaviour during cutting. These findings demonstrate that targeted Mo addition, known to enhance the performance of additively manufactured Ti-5553 alloy, can simultaneously improve machinability.","PeriodicalId":16154,"journal":{"name":"Journal of Materials Science & Technology","volume":"328 1","pages":""},"PeriodicalIF":10.9,"publicationDate":"2026-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147744080","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}

引用次数: 0

Multi-element doping enabling Co-free long-cycling high-voltage spinel cathodes 多元素掺杂实现无钴长循环高压尖晶石阴极

IF 10.9 1区材料科学

Journal of Materials Science & Technology Pub Date : 2026-04-22 DOI: 10.1016/j.jmst.2026.04.018

Zuojun Yang, Guokang Chen, Yong Wang, Xuheng Jiang, Qinfeng Zheng, Shun Zheng, Pengtao Xu, Chenji Hu, Yixiao Zhang, Haizu Jin, Xi Liu, Liwei Chen

{"title":"Multi-element doping enabling Co-free long-cycling high-voltage spinel cathodes","authors":"Zuojun Yang, Guokang Chen, Yong Wang, Xuheng Jiang, Qinfeng Zheng, Shun Zheng, Pengtao Xu, Chenji Hu, Yixiao Zhang, Haizu Jin, Xi Liu, Liwei Chen","doi":"10.1016/j.jmst.2026.04.018","DOIUrl":"https://doi.org/10.1016/j.jmst.2026.04.018","url":null,"abstract":"The high-voltage spinel LiNi0.5Mn1.5O4 (LNMO) is a promising cobalt-free cathode with high specific energy, attributed to its high operating voltage (approximately 4.7 V). However, its practical durability is limited by irreversible transition-metal migration, spinel-to-rock-salt phase reconstruction, high-voltage interfacial side reactions, and transition-metal dissolution. Herein, we report a multi-element-doped, cation-disordered spinel LiNi0.4Mn1.4Fe0.05Cr0.05Cu0.05Nb0.05O4 (HELNMO) synthesized via a solid-state method. Rietveld refinement confirms a single-phase Fd3̅m structure with a slightly expanded lattice parameter (8.1857 Å for HELNMO versus 8.1776 Å for LNMO), and energy-dispersive X-ray spectroscopy mapping reveals a homogeneous distribution of the dopant elements. Structural and spectroscopic characterizations consistently confirm enhanced cation disorder in HELNMO, which contributes to favorable electrochemical performance by delivering approximately 130 mAh g−1 at 0.1 C and exhibiting markedly improved cycling stability, retaining 92% of its initial capacity after 1000 cycles at 2 C between 3.5 and 4.9 V. In-situ X-ray diffraction reveals smoother, more continuous lattice evolution of HELNMO than LNMO during (de)lithiation, consistent with a more homogeneous reaction pathway. Post-cycling analyses corroborate suppressed surface rock-salt reconstruction, reduced impedance growth, and alleviated Mn/Ni dissolution. Collectively, multi-element doping coupled with disorder engineering can effectively mitigate transition-metal migration and high-voltage interfacial degradation, providing a practical strategy for durable, high-energy spinel cathodes.","PeriodicalId":16154,"journal":{"name":"Journal of Materials Science & Technology","volume":"111 1","pages":""},"PeriodicalIF":10.9,"publicationDate":"2026-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147735650","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}

引用次数: 0

In-situ high-temperature EBSD study of reverted austenite in an ultra-high strength steel 超高强度钢中还原奥氏体的原位高温EBSD研究

IF 10.9 1区材料科学

Journal of Materials Science & Technology Pub Date : 2026-04-18 DOI: 10.1016/j.jmst.2026.03.074

Haibin Zhu, Qi Liu, Xiucheng Li, Jinghua Cong, Xiangyu Xu, Xuemin Wang

{"title":"In-situ high-temperature EBSD study of reverted austenite in an ultra-high strength steel","authors":"Haibin Zhu, Qi Liu, Xiucheng Li, Jinghua Cong, Xiangyu Xu, Xuemin Wang","doi":"10.1016/j.jmst.2026.03.074","DOIUrl":"https://doi.org/10.1016/j.jmst.2026.03.074","url":null,"abstract":"Austenitization behavior significantly influences the high-temperature austenite grain size, as well as the final microstructure and properties of ultra-high strength steels. To clarify the underlying mechanisms, this study investigates how the initial microstructure controls this reversion process using in-situ high-temperature electron backscatter diffraction (EBSD). Crystallographic analysis of austenite reversion from degenerated pearlite, martensite, and tempered martensite reveals that the initial microstructure critically controls the austenite grain size at 860°C. The refinement of high-temperature austenite grains is primarily determined by the nucleation density of globular austenite, which stems from distinct nucleation mechanisms. In martensite, the nucleation of acicular austenite formed by reverse transformation predominates. Globular austenite only nucleates at prior austenite grain boundaries, existing in minimal quantities and ultimately developing into the coarse austenite grains. Tempered martensite follows a similar mechanism, with the addition of nucleation on cementite particles, which increases the density of globular austenite and yields intermediate refinement. Degenerated pearlite exhibits synergistic nucleation at pearlite colony boundaries and cementite particles, generating the highest density of randomly oriented nuclei and achieving the finest austenite grains. This work establishes a clear mechanistic link between the initial microstructure, the reversion pathway, and the final austenite grain size, providing critical insights into how to refine the austenite grain through the initial microstructure design of ultra-high-strength steels.","PeriodicalId":16154,"journal":{"name":"Journal of Materials Science & Technology","volume":"23 1","pages":""},"PeriodicalIF":10.9,"publicationDate":"2026-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147726405","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}

引用次数: 0

Unveiling the effects of Mn, Cr, Al, and Si on the low-temperature tempering behaviors of high-carbon martensite 揭示了Mn、Cr、Al和Si对高碳马氏体低温回火行为的影响

IF 10.9 1区材料科学

Journal of Materials Science & Technology Pub Date : 2026-04-17 DOI: 10.1016/j.jmst.2026.04.015

Yongjie Zhang, Kento Marusawa, Kohei Kudo, Satoshi Morooka, Wu Gong, Stefanus Harjo, Goro Miyamoto, Tadashi Furuhara

{"title":"Unveiling the effects of Mn, Cr, Al, and Si on the low-temperature tempering behaviors of high-carbon martensite","authors":"Yongjie Zhang, Kento Marusawa, Kohei Kudo, Satoshi Morooka, Wu Gong, Stefanus Harjo, Goro Miyamoto, Tadashi Furuhara","doi":"10.1016/j.jmst.2026.04.015","DOIUrl":"https://doi.org/10.1016/j.jmst.2026.04.015","url":null,"abstract":"Low-temperature tempering process of martensitic steels is generally performed to restore toughness and ductility without sacrificing strength for various industrial applications. Several reactions causing changes in both microstructure and physical properties occur sequentially during tempering. In this study, multi-aspect characterization using various advanced characterization techniques was performed to correlate the reaction kinetics and microstructural evolution in a series of Fe-0.8wt.%C-based alloys with 2at.% additions of common substitutional alloying elements (Mn, Cr, Al and Si), with an aim to clarify the alloying effects on the low-temperature tempering behaviors of high-carbon martensitic steels. During continuous heating at a rate of 10 K/min from the as-quenched condition, the reaction kinetics in various alloys was evaluated via calorimetry and dilatometry together with in-situ neutron diffraction, which showed good agreement with the results of microstructural characterization mainly by using three-dimensional atom probe. The reduction in tetragonality and solute carbon content of martensite during the clustering/segregation of carbon and the precipitation of metastable ε/η carbide was retarded by Al and Cr additions, which can be explained by their suppression effects on the carbon diffusivity in BCC-Fe. Moreover, the decomposition of retained austenite occurring in two separate steps was found to be influenced by distinct alloying effects. The retardation effects of Mn and Cr on the early step, and those of Al and Si on the late step, can be explained by their suppression effects on the nucleation of decomposition products, i.e., ferrite and cementite, respectively.","PeriodicalId":16154,"journal":{"name":"Journal of Materials Science & Technology","volume":"22 1","pages":""},"PeriodicalIF":10.9,"publicationDate":"2026-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147720025","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}

引用次数: 0

Recent advances in wet spinning MXene-based fiber/textiles for electromagnetic interference shielding 湿纺mxene基电磁干扰屏蔽纤维/纺织品的研究进展

IF 10.9 1区材料科学

Journal of Materials Science & Technology Pub Date : 2026-04-17 DOI: 10.1016/j.jmst.2026.03.075

Meng Wei, Yuanchen Li, Gengjiang Yao, Yanli Deng, Na Wu, Wei Liu, Jishang Liu, Shanbo Li, Zecheng Li, Zhihui Zeng, Jiurong Liu

{"title":"Recent advances in wet spinning MXene-based fiber/textiles for electromagnetic interference shielding","authors":"Meng Wei, Yuanchen Li, Gengjiang Yao, Yanli Deng, Na Wu, Wei Liu, Jishang Liu, Shanbo Li, Zecheng Li, Zhihui Zeng, Jiurong Liu","doi":"10.1016/j.jmst.2026.03.075","DOIUrl":"https://doi.org/10.1016/j.jmst.2026.03.075","url":null,"abstract":"The advancement of next-generation wearable devices and the Internet of Things (IoT) calls for flexible, lightweight, and mechanically robust electromagnetic interference (EMI) shielding fibers and textiles. Two-dimensional transition metal carbides/nitrides (MXenes) have emerged as ideal candidates for constructing high-performance EMI shielding fibers/textiles due to their excellent conductivity, high aspect ratio, and ease of processing in aqueous media. Particularly, wet spinning technology provides an effective approach for the directional assembly of MXene nanosheets into macroscopic fibers. This review summarizes recent advances in wet-spun MXene-based fibers/textiles for EMI shielding. Firstly, the EMI shielding mechanism was elaborated in detail, and the influence of MXene’s preparation and rheological properties on the wet spinning strategy was discussed. Furthermore, the research progress on the mechanical properties of fibers and the electromagnetic shielding interference performance through the exploration of component and structure design strategies was presented. Finally, this review concludes with perspectives on the challenges and future development of such materials in practical applications, aiming to guide the development of high-performance MXene-based shielding fibers/textiles based on precise structural design.","PeriodicalId":16154,"journal":{"name":"Journal of Materials Science & Technology","volume":"17 1","pages":""},"PeriodicalIF":10.9,"publicationDate":"2026-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147726407","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}

引用次数: 0