Journal of Materials Science & Technology最新文献

{"title":"Superior interface thermal conductance via chemical bonding between diamond and carbon nanotubes","authors":"Jiaruo Li, Ziyi Liu, Fuqiang Chu, Xurui Feng, Chengming Li, Daili Feng, Junjun Wei, Lin Qiu, Yanhui Feng","doi":"10.1016/j.jmst.2026.08.058","DOIUrl":"https://doi.org/10.1016/j.jmst.2026.08.058","url":null,"abstract":"Facing growing thermal challenges in electronics, diamond/carbon nanotube (CNT) composites offer a breakthrough heat-dissipation solution, yet the phonon transport across covalently bonded diamond/CNT interfaces remains poorly understood at the atomic scale. Based on our experimental synthesis results, we build the interfacial bonding structure model of the diamond/CNT composite materials for the first time and demonstrate the effects of covalent bonding and atomic interfacial structure on interfacial thermal conductance (ITC). The interfacial chemical bonding can significantly enhance ITC (by 4 to 73 times compared to unbonded interfaces, depending on the temperature and the number of bonds per unit diameter), with the most pronounced enhancement observed at 700 K. Increasing the number of bonds further improves ITC by exciting more delocalized phonons to participate in transport. Structural analysis reveals that the combination of diamond with the (111) crystal plane and zigzag CNTs yields the optimal thermal conductance, while phonon analysis shows that delocalized phonons in CNTs contribute more prominently to thermal transport. We design several diamond/CNT array structures, including aligned and crossed arrangements, and achieve ITC on the order of ∼100 GW/(m<ce:sup loc=\"post\">2</ce:sup> K), which is the highest value reported in the literature. Our research not only demonstrates a method for fabricating high-performance diamond/CNT composites with excellent heat-dissipation properties, but also paves the way for the design and preparation of novel carbon‑based materials.","PeriodicalId":16154,"journal":{"name":"Journal of Materials Science & Technology","volume":"1 1","pages":""},"PeriodicalIF":10.9,"publicationDate":"2026-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148884140","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":"Dual built-in electric fields enabled by S-scheme/high-low dual-heterojunction engineering in CoSx@ZnIn2S4@O, K-co-doped g-C3N4 for efficient photocatalytic H2 evolution","authors":"Surui Qiao, Junxin Huang, Jiangrong Xiao, Juntao Yan, Bo Chai, Xiaohu Zhang","doi":"10.1016/j.jmst.2026.08.063","DOIUrl":"https://doi.org/10.1016/j.jmst.2026.08.063","url":null,"abstract":"Constructing dual built-in electric fields and multiple charge-transfer pathways is an effective approach to improving solar H<ce:inf loc=\"post\">2</ce:inf> production. Herein, a ternary CoS<ce:italic><ce:inf loc=\"post\">x</ce:inf></ce:italic>@ZnIn<ce:inf loc=\"post\">2</ce:inf>S<ce:inf loc=\"post\">4</ce:inf>@O, K-co-doped g-C<ce:inf loc=\"post\">3</ce:inf>N<ce:inf loc=\"post\">4</ce:inf> (OKCN) photocatalyst was prepared by pyrolysis/in situ precipitation. In this architecture, ultrathin ZnIn<ce:inf loc=\"post\">2</ce:inf>S<ce:inf loc=\"post\">4</ce:inf> nanosheets were anchored on OKCN to form an S-scheme heterojunction, while in situ introduced CoS<ce:italic><ce:inf loc=\"post\">x</ce:inf></ce:italic> coupled with ZnIn<ce:inf loc=\"post\">2</ce:inf>S<ce:inf loc=\"post\">4</ce:inf> to construct a reduction-state high-low heterojunction. This dual-heterojunction structure generated dual built-in electric fields, promoting carrier separation, migration, and interfacial reactions. The optimized 3% CoS<ce:italic><ce:inf loc=\"post\">x</ce:inf></ce:italic>@ZnIn<ce:inf loc=\"post\">2</ce:inf>S<ce:inf loc=\"post\">4</ce:inf>@OKCN with an OKCN/ZnIn<ce:inf loc=\"post\">2</ce:inf>S<ce:inf loc=\"post\">4</ce:inf> mass ratio of 2:20 achieved a H<ce:inf loc=\"post\">2</ce:inf> evolution rate of 317.6 μmol h<ce:sup loc=\"post\">−1</ce:sup> under visible light, which was 1.75, 20.76 and 3.14 times those of CoS<ce:italic><ce:inf loc=\"post\">x</ce:inf></ce:italic>@ZnIn<ce:inf loc=\"post\">2</ce:inf>S<ce:inf loc=\"post\">4</ce:inf>, CoS<ce:italic><ce:inf loc=\"post\">x</ce:inf></ce:italic>@OKCN, and ZnIn<ce:inf loc=\"post\">2</ce:inf>S<ce:inf loc=\"post\">4</ce:inf>@OKCN, respectively, with an apparent quantum efficiency of 12.2% at 420 nm and good stability over five cycles. Photoelectrochemical measurements, photoluminescence (PL)/time‑resolved PL, density functional theory calculations, in situ X-ray photoelectron spectroscopy, Kelvin‑probe force microscope and Mott-Schottky analyses confirmed that the dual built-in electric fields accelerated interfacial charge transfer and optimized H<ce:inf loc=\"post\">2</ce:inf> evolution. This work provides guidance for designing efficient multi-interface photocatalysts through S-scheme/high-low dual-heterojunction engineering.","PeriodicalId":16154,"journal":{"name":"Journal of Materials Science & Technology","volume":"160 1","pages":""},"PeriodicalIF":10.9,"publicationDate":"2026-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148884139","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":"Synergistic strength-ductility in wire arc additive manufacturing of Al-Cu-Mg alloys via Sc microalloying and in-situ multi-scale precipitation","authors":"Wenlong Li,Guorui Sun,Chuanchuan Jia,Jinchen Zhang,Chao Chen,Shupeng Wang","doi":"10.1016/j.jmst.2026.08.073","DOIUrl":"https://doi.org/10.1016/j.jmst.2026.08.073","url":null,"abstract":"","PeriodicalId":16154,"journal":{"name":"Journal of Materials Science & Technology","volume":"51 1","pages":""},"PeriodicalIF":10.9,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148893916","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":"Constitutive modeling of the BCC-FCC transformation-affected powder densification controlled by diffusion and creep of the Al0.7CoCrFeNi high-entropy alloys during spark plasma sintering","authors":"Siyao Xie,Zijian Zeng,Jian Xu,Yafei Pan,Ruidi Li,Tiechui Yuan","doi":"10.1016/j.jmst.2026.07.118","DOIUrl":"https://doi.org/10.1016/j.jmst.2026.07.118","url":null,"abstract":"","PeriodicalId":16154,"journal":{"name":"Journal of Materials Science & Technology","volume":"8 1","pages":""},"PeriodicalIF":10.9,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148893917","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":"High-temperature degradation mechanisms of SiC whiskers reinforcement driven by thermo-mechanical coupling effects during sintering processes","authors":"Duwang Liu,Zengbin Yin,Caiyun Yuan,Dongbo Hong,Juntang Yuan","doi":"10.1016/j.jmst.2026.08.070","DOIUrl":"https://doi.org/10.1016/j.jmst.2026.08.070","url":null,"abstract":"","PeriodicalId":16154,"journal":{"name":"Journal of Materials Science & Technology","volume":"73 1","pages":""},"PeriodicalIF":10.9,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148893919","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":"Engineering asymmetric energy pathways using Janus gel heteroarchitectures for electromagnetic radiation absorption and directional radiative‑evaporative thermal management","authors":"Yi Gao, Jingyuan Tang, Qian Yang, Hongbo Hou, Tinghao Liao, Yao Zou, Haofei Ma, Fanbin Meng","doi":"10.1016/j.jmst.2026.08.060","DOIUrl":"https://doi.org/10.1016/j.jmst.2026.08.060","url":null,"abstract":"Modern electronic devices are increasingly affected by coupled electromagnetic and thermal disturbances. Existing multifunctional materials often combined shielding, absorption, insulation, or cooling functions, but clear pathways for electromagnetic and thermal energy transport were rarely established. In this work, a bio-inspired Janus aerogel hydrogel composite was developed for coordinated electromagnetic attenuation and directional thermal regulation. The porous reduced graphene oxide aerogel was used as an impedance-matched gateway for wave entry and external heat blocking. The liquid metal nanoparticles-modified polyvinyl alcohol hydrogel was used as a conductive and hydratable sink for electromagnetic dissipation and heat release. The composite achieved an electromagnetic interference shielding effectiveness above 50 dB, a reflection coefficient of 8.87 × 10<ce:sup loc=\"post\">−4</ce:sup>, and an effective absorption bandwidth of about 7.5 GHz. It also reduced CPU hotspot temperature by 5°C and achieved 7°C sub-ambient cooling under outdoor conditions. Building simulations further indicated seasonal energy saving potential. These results showed that asymmetric energy pathway design was effective for integrated electromagnetic thermal protection and low-carbon thermal management.","PeriodicalId":16154,"journal":{"name":"Journal of Materials Science & Technology","volume":"24 1","pages":""},"PeriodicalIF":10.9,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148884389","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":"Rapid globularization of additively manufactured Ti-6Al-4V alloy via ordered dislocation structures induced by pulsed current","authors":"Lai Wei,Xiaofeng Xu,Yongqiang Yu,Ganghu Cheng,Xingguo Fu,Peikun Liu,Haiyang Chen","doi":"10.1016/j.jmst.2026.08.075","DOIUrl":"https://doi.org/10.1016/j.jmst.2026.08.075","url":null,"abstract":"","PeriodicalId":16154,"journal":{"name":"Journal of Materials Science & Technology","volume":"266 1","pages":""},"PeriodicalIF":10.9,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148893915","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":"Unlocking high-performance manganese-based layered oxide cathodes for sodium-ion batteries","authors":"Guiying Xing,Ting Jin,Yuchang Si,Lifang Jiao","doi":"10.1016/j.jmst.2026.09.002","DOIUrl":"https://doi.org/10.1016/j.jmst.2026.09.002","url":null,"abstract":"","PeriodicalId":16154,"journal":{"name":"Journal of Materials Science & Technology","volume":"87 1","pages":""},"PeriodicalIF":10.9,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148893926","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":"Heterointerface-grain boundary defect engineering enables high-performance and mechanically robust Bi2Te3-based thermoelectric nanocomposites","authors":"Jie Zheng,Shengqiang Cui,Zhilong Zhao,Ruiheng Li,Xiang An,Zongxiang Kan,Feng Cheng,Min Hong,Ran Ang","doi":"10.1016/j.jmst.2026.07.117","DOIUrl":"https://doi.org/10.1016/j.jmst.2026.07.117","url":null,"abstract":"","PeriodicalId":16154,"journal":{"name":"Journal of Materials Science & Technology","volume":"3 1","pages":""},"PeriodicalIF":10.9,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148893913","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":"Dual boron‑coordinated active sites steering an \"activation‑migration‑desorption\" relay pathway in S‑scheme SubPc/Ag‑ZnIn2S4 for H2O2 photosynthesis from wastewater","authors":"Axu Wang,Enzhou Liu,Zhuo Li,Bing Wang,Yin Wang,Yulei Guan","doi":"10.1016/j.jmst.2026.08.074","DOIUrl":"https://doi.org/10.1016/j.jmst.2026.08.074","url":null,"abstract":"","PeriodicalId":16154,"journal":{"name":"Journal of Materials Science & Technology","volume":"53 1","pages":""},"PeriodicalIF":10.9,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148893918","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}