Cong Chen, Zhenjie Zhai, Denghui Li, Changfei Sun, Zhe Wang
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引用次数: 0
Abstract
In this paper, ZrC-Cu composites were prepared by powder metallurgy. The biphase reinforced Cu matrix composites were prepared by introducing rare earth oxides as the second-phase reinforced particles. The effects of rare earth elements on microstructure, electrical conductivity, mechanical properties and friction and wear properties of Cu and ZrC-Cu composites were studied by comparative analysis. The results show that the density of ZrC-Cu composites controlled by Eu2O3/Y2O3/La2O3 is > 96%. The friction coefficient is also reduced to about 0.2. Among them, ZrC-Eu2O3-Cu composite has the best comprehensive performance. Compared with pure Cu, the conductivity of ZrC-Eu2O3-Cu composite is reduced by 9.5%, and the compressive yield strength is increased by 240%. This shows that Eu2O is more significant in improving the wettability between the interfaces of ZrC-Cu composites.
期刊介绍：
JOM is a technical journal devoted to exploring the many aspects of materials science and engineering. JOM reports scholarly work that explores the state-of-the-art processing, fabrication, design, and application of metals, ceramics, plastics, composites, and other materials. In pursuing this goal, JOM strives to balance the interests of the laboratory and the marketplace by reporting academic, industrial, and government-sponsored work from around the world.
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