In this work, the high-entropy stability is predicted based on density functional theory (DFT) firstly. Then, the (WZrNbTaM)C (M=Cr, Ni, Ti) high-entropy carbide powders are synthesized by carbothermal reduction reaction. The synthesized high-entropy carbide powders are densified with addition of Co and Ni at a lower temperature. The phase analysis and microstructure observation, followed by mechanical property test, including Vickers hardness and fracture toughness of the high-entropy carbides are investigated. Finally, electrochemical corrosion behavior test of the samples is conducted in NaCl solution. It is found that a small amount of metal (2.5 wt.% Co and 2.5 wt.% Ni) can reduce the sintering temperature of high-entropy carbides, and the relative density can reach more than 96% at 1600 °C. The metal is uniformly dispersed among the high-entropy ceramic particles, facilitating liquid-phase mass transfer and pore elimination. (WZrNbTaNi)C-Co-Ni has the best comprehensive mechanical properties, with hardness and fracture toughness reaching 19.7 GPa and 6.6 MPa·m 1/2 , respectively. In 3.5 wt.% NaCl solution, oxides have formed on the surface of the samples after electrochemical corrosion test, and (WZrNbTaCr)C-Co-Ni shows excellent corrosion resistance.
{"title":"Microstructure, mechanical properties and corrosion behavior of high-entropy (WZrNbTaM)C (M= Cr, Ni, Ti) carbides","authors":"Jiatai Zhang, Weili Wang, Zhixuan Zhang, Sijie Wei, Qiang Zhang, Zongyao Zhang, Weibin Zhang","doi":"10.1016/j.jmrt.2025.12.309","DOIUrl":"https://doi.org/10.1016/j.jmrt.2025.12.309","url":null,"abstract":"In this work, the high-entropy stability is predicted based on density functional theory (DFT) firstly. Then, the (WZrNbTaM)C (M=Cr, Ni, Ti) high-entropy carbide powders are synthesized by carbothermal reduction reaction. The synthesized high-entropy carbide powders are densified with addition of Co and Ni at a lower temperature. The phase analysis and microstructure observation, followed by mechanical property test, including Vickers hardness and fracture toughness of the high-entropy carbides are investigated. Finally, electrochemical corrosion behavior test of the samples is conducted in NaCl solution. It is found that a small amount of metal (2.5 wt.% Co and 2.5 wt.% Ni) can reduce the sintering temperature of high-entropy carbides, and the relative density can reach more than 96% at 1600 °C. The metal is uniformly dispersed among the high-entropy ceramic particles, facilitating liquid-phase mass transfer and pore elimination. (WZrNbTaNi)C-Co-Ni has the best comprehensive mechanical properties, with hardness and fracture toughness reaching 19.7 GPa and 6.6 MPa·m 1/2 , respectively. In 3.5 wt.% NaCl solution, oxides have formed on the surface of the samples after electrochemical corrosion test, and (WZrNbTaCr)C-Co-Ni shows excellent corrosion resistance.","PeriodicalId":501120,"journal":{"name":"Journal of Materials Research and Technology","volume":"40 1","pages":"2660-2671"},"PeriodicalIF":0.0,"publicationDate":"2025-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147333343","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Silicon nitride with 5, 10 and 20 wt.% molybdenum addition (Mo-Si/Si 3 N 4 composite) was prepared by spark plasma sintering and its mechanical and tribological properties at RT, 300, 600 and 900 °C were systematically investigated. When the test temperature below 600 °C, the multiple effects of in-situ generated Mo-Si compounds on cracks, including deflection and closure during the initiation stage and deflection and bridging during the crack propagation, effectively improved the fracture toughness of Mo-Si/Si 3 N 4 composite. Furthmore, Mo-Si/Si 3 N 4 composite exhibited excellent tribological properties at elevated temperature, which rely on the substrate protection through the generation of MoO 3 tribofilm. Especially, at 600 °C, the sample with 20 wt.% Mo addition showed only 8.1×10 -6 mm -3 /Nm in wear rate while monolithic Si 3 N 4 showed 1.5×10 -3 mm -3 /Nm in wear rate, resulted in a three-order-of-magnitude decrease in wear.
采用火花等离子烧结法制备了钼添加量为5、10和20 wt.%的氮化硅（Mo-Si/ si3n4复合材料），并对其在室温、300、600和900℃下的力学性能和摩擦学性能进行了系统研究。当试验温度低于600℃时，原位生成的Mo-Si化合物对裂纹的多重作用，包括起裂阶段的挠曲和闭合以及裂纹扩展阶段的挠曲和桥接，有效地提高了Mo-Si/ si3n4复合材料的断裂韧性。此外，Mo-Si/ si3n4复合材料在高温下表现出优异的摩擦学性能，这依赖于通过生成moo3摩擦膜对衬底的保护。特别是，在600℃时，添加20 wt.% Mo的样品的磨损率仅为8.1×10 -6 mm -3 /Nm，而单片Si 3n4的磨损率为1.5×10 -3 mm -3 /Nm，导致磨损率降低了三个数量级。
{"title":"Research on the mechanical and tribological properties of Mo–Si/Si3N4 composite at elevated temperature","authors":"Gaoxi Cui, Ziyue Wang, Tongyang Li, Lujie Wang, Yuan Yu, Huaguo Tang, Zhuhui Qiao","doi":"10.1016/j.jmrt.2025.12.302","DOIUrl":"https://doi.org/10.1016/j.jmrt.2025.12.302","url":null,"abstract":"Silicon nitride with 5, 10 and 20 wt.% molybdenum addition (Mo-Si/Si 3 N 4 composite) was prepared by spark plasma sintering and its mechanical and tribological properties at RT, 300, 600 and 900 °C were systematically investigated. When the test temperature below 600 °C, the multiple effects of in-situ generated Mo-Si compounds on cracks, including deflection and closure during the initiation stage and deflection and bridging during the crack propagation, effectively improved the fracture toughness of Mo-Si/Si 3 N 4 composite. Furthmore, Mo-Si/Si 3 N 4 composite exhibited excellent tribological properties at elevated temperature, which rely on the substrate protection through the generation of MoO 3 tribofilm. Especially, at 600 °C, the sample with 20 wt.% Mo addition showed only 8.1×10 -6 mm -3 /Nm in wear rate while monolithic Si 3 N 4 showed 1.5×10 -3 mm -3 /Nm in wear rate, resulted in a three-order-of-magnitude decrease in wear.","PeriodicalId":501120,"journal":{"name":"Journal of Materials Research and Technology","volume":"40 1","pages":"2466-2478"},"PeriodicalIF":0.0,"publicationDate":"2025-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147331207","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-12-23DOI: 10.1016/j.jmrt.2025.12.204
Kaiping Hu, Hao Zhang, Shuailing Ma, Min Lian, Xingbin Zhao, Yanping Huang, Tian Cui
{"title":"Synergistic enhancement of thermoelectric performance in p-type polycrystalline SnSe via HPHT processing and CuS doping","authors":"Kaiping Hu, Hao Zhang, Shuailing Ma, Min Lian, Xingbin Zhao, Yanping Huang, Tian Cui","doi":"10.1016/j.jmrt.2025.12.204","DOIUrl":"https://doi.org/10.1016/j.jmrt.2025.12.204","url":null,"abstract":"","PeriodicalId":501120,"journal":{"name":"Journal of Materials Research and Technology","volume":"40 1","pages":"3223-3232"},"PeriodicalIF":0.0,"publicationDate":"2025-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147333828","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-11-01DOI: 10.1016/j.jmrt.2025.11.087
Jinwen Song, Wen Yan, Olena Volkova, Stefan Andrä, Matheus Roberto Bellé, Lukas Neubert, Can Tian, Yuanbing Li
{"title":"Effect of microporous Al2O3–MgAl2O4 content on the thermal shock resistance and molten steel purification performance of β-SiC whisker-reinforced Al2O3–MgAl2O4–C ceramic filters","authors":"Jinwen Song, Wen Yan, Olena Volkova, Stefan Andrä, Matheus Roberto Bellé, Lukas Neubert, Can Tian, Yuanbing Li","doi":"10.1016/j.jmrt.2025.11.087","DOIUrl":"https://doi.org/10.1016/j.jmrt.2025.11.087","url":null,"abstract":"","PeriodicalId":501120,"journal":{"name":"Journal of Materials Research and Technology","volume":"39 1","pages":"7124-7137"},"PeriodicalIF":0.0,"publicationDate":"2025-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147332186","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Effect mechanism of second phase particle types on high temperature compressive properties and thermal deformation behavior of Mo–Re alloy","authors":"Qiurui Wu, Lu Yang, Peng Li, Xun Dai, Taiyang Zhang, Shizhong Wei","doi":"10.1016/j.jmrt.2025.11.051","DOIUrl":"https://doi.org/10.1016/j.jmrt.2025.11.051","url":null,"abstract":"","PeriodicalId":501120,"journal":{"name":"Journal of Materials Research and Technology","volume":"39 1","pages":"7315-7324"},"PeriodicalIF":0.0,"publicationDate":"2025-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147331552","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-10-25DOI: 10.1016/j.jmrt.2025.10.202
Yingquan Peng, Qingsong Mei, J.Y. Li, Yan Ma, Z.H. Chen, Lingyi Liao, Long Bai
Incorporating graphene (Gr) into nanotwinned Cu (ntCu) is expected to produce ntCu-Gr nanocomposites with enhanced structural-functional properties by taking advantage of the unique properties of ntCu and Gr. Achieving effective dispersion and robust interfacial bonding between Gr and the ntCu matrix is critical to this process. In this study, Cu-Gr nanocomposites were prepared by using pulse co-electrodeposition (PCED). An optimized microstructure comprising a high density of nanotwins and homogeneously dispersed graphene was obtained at a graphene concentration ( C Gr ) of 0.1 g/L and a pulse current density of 300 mA/cm 2 . The Gr layers were incorporated preferably in the incoherent twin boundaries (ITBs), exhibiting an orientation relationship described as (10 1 ‾ 0) Gr //(11 1 ‾ ) Cu with the matrix. The Young's modulus of the Cu-Gr samples increases with increasing C Gr , with a maximum of ∼143 GPa for C Gr of 0.3 g/L, owing to the integration of graphene. The ntCu-Gr sample with C Gr of 0.1 g/L exhibits the highest hardness of ∼2.73 GPa, resulting from the synergistic strengthening effects of the nanotwins and graphene. Our study offers a pathway for the fabrication of ntCu-Gr nanocomposites with enhanced hardness by PCED and highlights the unique interfacial structure between nanotwins and graphene.
{"title":"Fabrication of nanotwinned copper-graphene nanocomposites by pulse co-electrodeposition","authors":"Yingquan Peng, Qingsong Mei, J.Y. Li, Yan Ma, Z.H. Chen, Lingyi Liao, Long Bai","doi":"10.1016/j.jmrt.2025.10.202","DOIUrl":"https://doi.org/10.1016/j.jmrt.2025.10.202","url":null,"abstract":"Incorporating graphene (Gr) into nanotwinned Cu (ntCu) is expected to produce ntCu-Gr nanocomposites with enhanced structural-functional properties by taking advantage of the unique properties of ntCu and Gr. Achieving effective dispersion and robust interfacial bonding between Gr and the ntCu matrix is critical to this process. In this study, Cu-Gr nanocomposites were prepared by using pulse co-electrodeposition (PCED). An optimized microstructure comprising a high density of nanotwins and homogeneously dispersed graphene was obtained at a graphene concentration ( C Gr ) of 0.1 g/L and a pulse current density of 300 mA/cm 2 . The Gr layers were incorporated preferably in the incoherent twin boundaries (ITBs), exhibiting an orientation relationship described as (10 1 ‾ 0) Gr //(11 1 ‾ ) Cu with the matrix. The Young's modulus of the Cu-Gr samples increases with increasing C Gr , with a maximum of ∼143 GPa for C Gr of 0.3 g/L, owing to the integration of graphene. The ntCu-Gr sample with C Gr of 0.1 g/L exhibits the highest hardness of ∼2.73 GPa, resulting from the synergistic strengthening effects of the nanotwins and graphene. Our study offers a pathway for the fabrication of ntCu-Gr nanocomposites with enhanced hardness by PCED and highlights the unique interfacial structure between nanotwins and graphene.","PeriodicalId":501120,"journal":{"name":"Journal of Materials Research and Technology","volume":"39 1","pages":"5337-5345"},"PeriodicalIF":0.0,"publicationDate":"2025-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147332632","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The conflict between segmental mobility for viscoelastic energy dissipation and crosslinking network stability for mechanical performance is one of the greatest challenges of damping materials. Phenyl silicone rubber exhibits extraordinary thermal stability, radiation resistance and weather resistance, making it particularly suitable for use in the aviation and aerospace. However, its inherent flexibility and weak intermolecular interactions result in narrow damping temperature ranges and instability of the mechanical properties at extreme temperatures, which severely limits its practical application. In this study, we designed and synthesized five soluble diphenyl MQ resins with different M/Q ratios, and developed a novel dissolution blending method to incorporate resins as damping fillers into phenyl silicone rubber to prepare high-performance damping composites. The dissolution blending method enhances interface effect and facilitates more bound rubber between phenyl silicone rubber and diphenyl MQ resin, which promotes efficient stress transfer and energy dissipation. The results show that, when the M/Q ratio is 0.8, the dissolution blended damping composite (DBDC) possesses a significant improvement of 230.9 % in the effective damping (tan δ > 0.3) temperature range compared to the blank phenyl silicone rubber. Remarkably, the DBDC also exhibits exceptional mechanical performance and aging resistance, displaying tensile strengths above 5 MPa at both 150 °C and −50 °C, maintaining over 95 % of its original tensile strength and hardness after 96h aging at 150 °C. This work proposes a viable strategy for the preparation of high-performance damping composites suitable for extreme environments.
{"title":"High-performance silicone rubber composite via interface effect: surpassing the damping property-mechanical strength-aging resistance trade-off in extreme environments","authors":"Xinyi Han, Kaili Zhao, Jinghao Hao, Hua Wang, Lin Zhu, Chuanjian Zhou","doi":"10.1016/j.jmrt.2025.10.060","DOIUrl":"https://doi.org/10.1016/j.jmrt.2025.10.060","url":null,"abstract":"The conflict between segmental mobility for viscoelastic energy dissipation and crosslinking network stability for mechanical performance is one of the greatest challenges of damping materials. Phenyl silicone rubber exhibits extraordinary thermal stability, radiation resistance and weather resistance, making it particularly suitable for use in the aviation and aerospace. However, its inherent flexibility and weak intermolecular interactions result in narrow damping temperature ranges and instability of the mechanical properties at extreme temperatures, which severely limits its practical application. In this study, we designed and synthesized five soluble diphenyl MQ resins with different M/Q ratios, and developed a novel dissolution blending method to incorporate resins as damping fillers into phenyl silicone rubber to prepare high-performance damping composites. The dissolution blending method enhances interface effect and facilitates more bound rubber between phenyl silicone rubber and diphenyl MQ resin, which promotes efficient stress transfer and energy dissipation. The results show that, when the M/Q ratio is 0.8, the dissolution blended damping composite (DBDC) possesses a significant improvement of 230.9 % in the effective damping (tan δ > 0.3) temperature range compared to the blank phenyl silicone rubber. Remarkably, the DBDC also exhibits exceptional mechanical performance and aging resistance, displaying tensile strengths above 5 MPa at both 150 °C and −50 °C, maintaining over 95 % of its original tensile strength and hardness after 96h aging at 150 °C. This work proposes a viable strategy for the preparation of high-performance damping composites suitable for extreme environments.","PeriodicalId":501120,"journal":{"name":"Journal of Materials Research and Technology","volume":"39 1","pages":"3520-3530"},"PeriodicalIF":0.0,"publicationDate":"2025-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147333773","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-08-29DOI: 10.1016/j.jmrt.2025.08.270
Xuan Gong, Haohao Zou, H.Q. Ye, Weiguang Zhu, Ying Han, Zhenxin Duan, Suqiu Jia, Xu Ran
{"title":"Fabrication, microstructure, and properties of Cu nanoparticles-loaded Ti3C2Tx MXene nanosheets-reinforced Cu matrix composites","authors":"Xuan Gong, Haohao Zou, H.Q. Ye, Weiguang Zhu, Ying Han, Zhenxin Duan, Suqiu Jia, Xu Ran","doi":"10.1016/j.jmrt.2025.08.270","DOIUrl":"https://doi.org/10.1016/j.jmrt.2025.08.270","url":null,"abstract":"","PeriodicalId":501120,"journal":{"name":"Journal of Materials Research and Technology","volume":"38 1","pages":"4624-4637"},"PeriodicalIF":0.0,"publicationDate":"2025-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147331985","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Enhanced wear and corrosion resistance of CeO2/WSAR-sealed TiN coatings for extreme environments","authors":"Xiangru Shi, Qun Li, Zhen Zhou, Xin Zhang, Jiangbo Cheng, Jian Chen","doi":"10.1016/j.jmrt.2025.08.256","DOIUrl":"https://doi.org/10.1016/j.jmrt.2025.08.256","url":null,"abstract":"","PeriodicalId":501120,"journal":{"name":"Journal of Materials Research and Technology","volume":"38 1","pages":"3866-3878"},"PeriodicalIF":0.0,"publicationDate":"2025-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147332191","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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