Enhancing electrical conductivity and mechanical properties of W-Cu composites with additional Ag/La2O3 hybrid

被引：1
|
作者：
Yang, Ming [1 ]
Xu, Zhengbing [1 ]
Yin, Cailiu [2 ]
Zhang, Xinjiang [2 ]
Zhang, Minghao [2 ]
Sun, Zheng [2 ]
机构：
[1] Guangxi Univ, Sch Resources Environm & Mat, State Key Lab Featured Met Mat & Life Cycle Safety, Nanning 530004, Peoples R China
[2] Guangxi Minzu Univ, Guangxi Coll & Univ Key Lab Environm Friendly Mat, Sch Mat & Environm, Guangxi Key Lab Adv Struct Mat & Carbon Neutraliza, Nanning 530105, Peoples R China
来源：
JOURNAL OF MATERIALS SCIENCE | 2024年 / 59卷 / 44期
关键词：
TEMPERATURE; FABRICATION; TUNGSTEN; MICROSTRUCTURE; AG; DENSIFICATION; HARDNESS; POWDERS; ALLOYS;
D O I：
10.1007/s10853-024-10400-5
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
W-Cu composites with Ag/La2O3 hybrid addition were prepared through pressure-free sintering at different sintering temperatures from 900 to 1200 degrees C. Microstructure, electrical conductivity and mechanical properties of W-Cu composites with additional Ag/La2O3 hybrid were analyzed. Microstructural observation showed that Ag was partially solubilized into Cu to generate Cu-Ag solid solution during the sintering, while Ag aggregation and La2O3 dispersion were found in the Cu matrix. The higher sintering temperature reduced the porosity of the sintered bulk composites. W-Cu composites with Ag/La2O3 hybrid addition possessed the higher values of electrical conductivity, hardness and strength at each sintering temperature, and the optimum sintering temperature was 1100 degrees C, at which Ag/La2O3 hybrid reached enhancement in properties comparing with W-Cu composites.
引用
收藏
页码：20640 / 20656
页数：17
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