Pub Date : 2026-01-28DOI: 10.1016/j.jmst.2025.12.059
Zhenyu Zhai, Yaxin Sun, Hai Wu, Congju Li
{"title":"Bead-like macroporous carbon nanofibers-AgFe alloy as cathode catalyst to enhance the performance of MFCs","authors":"Zhenyu Zhai, Yaxin Sun, Hai Wu, Congju Li","doi":"10.1016/j.jmst.2025.12.059","DOIUrl":"https://doi.org/10.1016/j.jmst.2025.12.059","url":null,"abstract":"","PeriodicalId":16154,"journal":{"name":"Journal of Materials Science & Technology","volume":"74 1","pages":""},"PeriodicalIF":10.9,"publicationDate":"2026-01-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146072312","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}
Pub Date : 2026-01-28DOI: 10.1016/j.jmst.2026.01.032
Mengwei He, Yu Luo, Andrew Breen, Zhiyong Wang, Simon P. Ringer
{"title":"Short-range order analysis: A data-volume threshold criterion and the potential role of atom probe tomography","authors":"Mengwei He, Yu Luo, Andrew Breen, Zhiyong Wang, Simon P. Ringer","doi":"10.1016/j.jmst.2026.01.032","DOIUrl":"https://doi.org/10.1016/j.jmst.2026.01.032","url":null,"abstract":"","PeriodicalId":16154,"journal":{"name":"Journal of Materials Science & Technology","volume":"44 1","pages":""},"PeriodicalIF":10.9,"publicationDate":"2026-01-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146072310","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 improvement of mechanical properties at room temperature and high temperature of 350°C of Al–7Si–4Cu–1Ni–0.5Mn–0.5Mg alloy via microalloying of Gd and Yb elements","authors":"Jingbo Cui, Jufu Jiang, Ying Wang, Jian Dong, Xiaodong Zhang, Lingbo Kong, Minjie Huang","doi":"10.1016/j.jmst.2026.01.035","DOIUrl":"https://doi.org/10.1016/j.jmst.2026.01.035","url":null,"abstract":"","PeriodicalId":16154,"journal":{"name":"Journal of Materials Science & Technology","volume":"3 1","pages":""},"PeriodicalIF":10.9,"publicationDate":"2026-01-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146072316","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}
Pub Date : 2026-01-27DOI: 10.1016/j.jmst.2026.01.031
S.Y. Peng, Y.Z. Tian, Z.Y. Ni, S. Lu, S. Li
Generally, balanced strength and ductility can be achieved by tailoring crystal defects for face-centered cubic (FCC) alloys, in which dislocations play a critical role. This study investigates the deformation mechanisms and strain-hardening behavior of CoCrNi alloys (45Ni, 33Ni, 24Ni) with different stacking fault energies (SFEs). The 45Ni and 33Ni exhibit a dislocation-dominated deformation mechanism. In contrast, stacking faults (SFs) dominate in the 24Ni alloy, which is closely related to the very low SFE. SFs not only strengthen the FCC matrix but also promote the hexagonal close-packed (HCP) phase nucleation. The overall effect of the nanoscale thickness and the significant volume fraction of the HCP phase leads to a sustained high strain-hardening rate. In addition, the product of ductility and strength of 24Ni is significantly higher than that of equiatomic CoCrNi alloy and 316L stainless steel at the critical grain size of ∼0.7 μm. These findings provide new insights for further improving the mechanical properties of FCC alloys.
{"title":"Transition of dominating roles from dislocations to stacking faults enables superior mechanical properties of CoCrNi alloys","authors":"S.Y. Peng, Y.Z. Tian, Z.Y. Ni, S. Lu, S. Li","doi":"10.1016/j.jmst.2026.01.031","DOIUrl":"https://doi.org/10.1016/j.jmst.2026.01.031","url":null,"abstract":"Generally, balanced strength and ductility can be achieved by tailoring crystal defects for face-centered cubic (FCC) alloys, in which dislocations play a critical role. This study investigates the deformation mechanisms and strain-hardening behavior of CoCrNi alloys (45Ni, 33Ni, 24Ni) with different stacking fault energies (SFEs). The 45Ni and 33Ni exhibit a dislocation-dominated deformation mechanism. In contrast, stacking faults (SFs) dominate in the 24Ni alloy, which is closely related to the very low SFE. SFs not only strengthen the FCC matrix but also promote the hexagonal close-packed (HCP) phase nucleation. The overall effect of the nanoscale thickness and the significant volume fraction of the HCP phase leads to a sustained high strain-hardening rate. In addition, the product of ductility and strength of 24Ni is significantly higher than that of equiatomic CoCrNi alloy and 316L stainless steel at the critical grain size of ∼0.7 μm. These findings provide new insights for further improving the mechanical properties of FCC alloys.","PeriodicalId":16154,"journal":{"name":"Journal of Materials Science & Technology","volume":"184 1","pages":""},"PeriodicalIF":10.9,"publicationDate":"2026-01-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146056092","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}
Pub Date : 2026-01-27DOI: 10.1016/j.jmst.2026.01.030
Qianjin Wang, Hongchen Zhang, Jun Ding, Peizhi Yang, Yingkai Liu, Qiuhong Tan
Two-dimensional (2D) van der Waals heterostructure photodetectors have emerged as promising candidates for next-generation optoelectronic systems. However, their practical performance is often hindered by interfacial carrier recombination and inefficient charge extraction. Here, a high-performance CuInP2Se6/MoS2 van der Waals heterojunction photodetector is reported that overcomes these challenges via engineered type-II band alignment and interfacial electric field modulation. Under 367 nm illumination, the device achieves an ultrahigh responsivity (R) of 907 A W−1 and a fast photoresponse characterized by rise and decay times of 7.6 and 9.0 μs, respectively. These metrics surpass those of most previously reported MoS2-based heterojunction photodetectors. Mechanistically, the type-II band alignment and built-in electric field synergistically facilitate efficient photogenerated carrier separation and suppress interfacial recombination, enabling superior photodetection performance. In addition, the device demonstrates optical OR logic functionality, capable of responding to either optical or gate stimuli, revealing its potential for logic-in-sensor architectures. Single-pixel imaging experiments further validate its excellent imaging capability, and convolutional neural network-assisted image recognition achieves an accuracy approaching 99%, demonstrating the integration potential of logic-enabled phototransistors in intelligent vision systems. This work establishes a reconfigurable 2D optoelectronic platform that integrates fast photodetection with embedded logic and visual processing, offering a compelling strategy toward on-chip photonic computing and neuromorphic perception.
二维（2D）范德华异质结构光电探测器已成为下一代光电系统的有希望的候选者。然而，界面载流子复合和低效的电荷提取往往阻碍了它们的实际性能。本文报道了一种高性能的CuInP2Se6/MoS2范德华异质结光电探测器，该探测器通过工程ii型带校准和界面电场调制克服了这些挑战。在367 nm光照下，器件的响应度R为907 A W−1，光响应速度快，上升时间为7.6 μs，衰减时间为9.0 μs。这些指标超过了大多数先前报道的基于mos2的异质结光电探测器。在机械上，ii型波段对准和内置电场协同促进了高效的光生载流子分离和抑制界面重组，从而实现了优越的光探测性能。此外，该器件还展示了光学或逻辑功能，能够响应光学或门刺激，揭示了其在传感器内逻辑架构中的潜力。单像素成像实验进一步验证了其出色的成像能力，卷积神经网络辅助图像识别的准确率接近99%，展示了逻辑使能光电晶体管在智能视觉系统中的集成潜力。这项工作建立了一个可重构的二维光电平台，将快速光电检测与嵌入式逻辑和视觉处理集成在一起，为片上光子计算和神经形态感知提供了一个引人注目的策略。
{"title":"CuInP2Se6/MoS2 heterojunction photodetector with fast response, optical logic, and intelligent image recognition","authors":"Qianjin Wang, Hongchen Zhang, Jun Ding, Peizhi Yang, Yingkai Liu, Qiuhong Tan","doi":"10.1016/j.jmst.2026.01.030","DOIUrl":"https://doi.org/10.1016/j.jmst.2026.01.030","url":null,"abstract":"Two-dimensional (2D) van der Waals heterostructure photodetectors have emerged as promising candidates for next-generation optoelectronic systems. However, their practical performance is often hindered by interfacial carrier recombination and inefficient charge extraction. Here, a high-performance CuInP<ce:inf loc=\"post\">2</ce:inf>Se<ce:inf loc=\"post\">6</ce:inf>/MoS<ce:inf loc=\"post\">2</ce:inf> van der Waals heterojunction photodetector is reported that overcomes these challenges via engineered type-II band alignment and interfacial electric field modulation. Under 367 nm illumination, the device achieves an ultrahigh responsivity (<ce:italic>R</ce:italic>) of 907 A W<ce:sup loc=\"post\">−1</ce:sup> and a fast photoresponse characterized by rise and decay times of 7.6 and 9.0 μs, respectively. These metrics surpass those of most previously reported MoS<ce:inf loc=\"post\">2</ce:inf>-based heterojunction photodetectors. Mechanistically, the type-II band alignment and built-in electric field synergistically facilitate efficient photogenerated carrier separation and suppress interfacial recombination, enabling superior photodetection performance. In addition, the device demonstrates optical OR logic functionality, capable of responding to either optical or gate stimuli, revealing its potential for logic-in-sensor architectures. Single-pixel imaging experiments further validate its excellent imaging capability, and convolutional neural network-assisted image recognition achieves an accuracy approaching 99%, demonstrating the integration potential of logic-enabled phototransistors in intelligent vision systems. This work establishes a reconfigurable 2D optoelectronic platform that integrates fast photodetection with embedded logic and visual processing, offering a compelling strategy toward on-chip photonic computing and neuromorphic perception.","PeriodicalId":16154,"journal":{"name":"Journal of Materials Science & Technology","volume":"38 1","pages":""},"PeriodicalIF":10.9,"publicationDate":"2026-01-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146056093","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}
Pub Date : 2026-01-27DOI: 10.1016/j.jmst.2026.01.029
Bin Wang, Jiawei Liu, Zhiwei Qin, Jingkuan Wang, Zhijie Ding, Jinkai Wang, Chunbo Zhang, Zhijie Li, Honggang Dong, Peng Li
Structural integrity of nuclear power plants under extreme conditions imposes stringent demands on the dissimilar pipe connection. Herein, a cumulative strain-induced gradient heterostructure strengthening strategy based on surface mechanical rolling (SMR) was proposed to synchronously enhance the mechanical properties and corrosion resistance of IN690/316LN dissimilar joints. A pre-engineered gradient dislocation network was implemented, significantly mitigating the initiation and propagation of cracks through suppressing strain localization. The gradient dislocation prefabricated by cumulative strain facilitates the formation of gradient-distributed domains, which are characterized by severe strain gradients and high-density geometrically necessary dislocations along the depth direction, further promoting a hetero-deformation-induced (HDI) hardening effect, and the effective depth exceeds 360 μm. The back stress during tensile deformation increases significantly following SMR, with a maximum enhancement of 56.1 MPa, thereby facilitating the strength-ductility synergy. The severe plastic deformation induced by SMR triggers martensitic transformation, introducing deformed twins and high-density stacking faults, synergistically enhancing mechanical properties through defect interaction and HDI hardening. Compared with as-welded joints, the surface hardness and elastic modulus increased by 35.15% and 91.4%, and the wear resistance improved by 105.3%, while the tensile strength and elongation rose by 39.71 MPa and 5.2%. Additionally, the corrosion resistance was substantially enhanced, with passivation film thickness increasing by 84.2%. The findings provide a technical foundation for high-performance manufacturing in nuclear power.
{"title":"Cumulative strain-induced gradient heterostructure for synchronously boosting mechanical properties and corrosion resistance","authors":"Bin Wang, Jiawei Liu, Zhiwei Qin, Jingkuan Wang, Zhijie Ding, Jinkai Wang, Chunbo Zhang, Zhijie Li, Honggang Dong, Peng Li","doi":"10.1016/j.jmst.2026.01.029","DOIUrl":"https://doi.org/10.1016/j.jmst.2026.01.029","url":null,"abstract":"Structural integrity of nuclear power plants under extreme conditions imposes stringent demands on the dissimilar pipe connection. Herein, a cumulative strain-induced gradient heterostructure strengthening strategy based on surface mechanical rolling (SMR) was proposed to synchronously enhance the mechanical properties and corrosion resistance of IN690/316LN dissimilar joints. A pre-engineered gradient dislocation network was implemented, significantly mitigating the initiation and propagation of cracks through suppressing strain localization. The gradient dislocation prefabricated by cumulative strain facilitates the formation of gradient-distributed domains, which are characterized by severe strain gradients and high-density geometrically necessary dislocations along the depth direction, further promoting a hetero-deformation-induced (HDI) hardening effect, and the effective depth exceeds 360 μm. The back stress during tensile deformation increases significantly following SMR, with a maximum enhancement of 56.1 MPa, thereby facilitating the strength-ductility synergy. The severe plastic deformation induced by SMR triggers martensitic transformation, introducing deformed twins and high-density stacking faults, synergistically enhancing mechanical properties through defect interaction and HDI hardening. Compared with as-welded joints, the surface hardness and elastic modulus increased by 35.15% and 91.4%, and the wear resistance improved by 105.3%, while the tensile strength and elongation rose by 39.71 MPa and 5.2%. Additionally, the corrosion resistance was substantially enhanced, with passivation film thickness increasing by 84.2%. The findings provide a technical foundation for high-performance manufacturing in nuclear power.","PeriodicalId":16154,"journal":{"name":"Journal of Materials Science & Technology","volume":"40 1","pages":""},"PeriodicalIF":10.9,"publicationDate":"2026-01-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146056094","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}
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