材料科学
放电等离子烧结
合金
微观结构
极限抗拉强度
复合材料
柯肯德尔效应
电阻率和电导率
复合数
冶金
电气工程
工程类
作者
Yongqiang Qin,Yi Zhuang,Yue Wang,Yifan Zhang,Laima Luo,Xiang Zan,Yucheng Wu
标识
DOI:10.1016/j.fusengdes.2022.113166
摘要
In current work, CuCrZr alloy with 3 wt.% WC were prepared by MA-SPS method. SEM, TEM, XRD, electrical and mechanical testing were used to characterize the microstructure and performance of composite materials. The interfaces between WC nanoparticles and Cu matrix were systematically studied. The results show that the addition of WC lead to a great improvement on yield and ultimate tensile strength, with the cost of slightly decreased of plasticity and conductivity. The particles with ZrC-W2C-WC core-shell particles were observed in the Cu matrix, which improve the interface between the matrix and the WC particles. The formation of ZrC-W2C-WC core-shell structure was explained using Kirkendall effect and the effects of this core-shell structure on mechanical and electrical conductivity were discussed.
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