真空热压烧结制备20vol%SiC/Cu-Al2O3复合材料
Preparation of 20vol%SiC/Cu-Al2O3 Composite by Vacuum Hot-pressing
孙永伟1, 刘 勇1,2, 田保红1,2, 冯 江1
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作者单位:(1. 河南科技大学 材料科学与工程学院, 河南 洛阳 471003; 2. 河南省有色金属材料科学与加工技术重点实验室, 河南 洛阳 471003)
中文关键字:真空热压烧结; 20vol%SiC/Cu-Al2O3; 显微组织; 性能
英文关键字:vacuum-pressed sintering; 20vol%SiC/Cu-Al2O3; microstructure; properties
中文摘要:采用真空热压烧结法制备了20vol%SiC/Cu-Al2O3复合材料,观察了其显微组织,进行了XRD分析,并测试了性能。结果表明:该材料致密度为97.6%,组织较为致密,显微硬度达165 HV,导电率为25%IACS;在950 ℃下,碳化硅与铜发生反应生成Cu9Si。
英文摘要:20vol%SiC/Cu-Al2O3 composite was prepared by vacuum-pressed sintering, the microstructure and properties of the composite were observed and tested, respectively. The results show that the density, microhardness and electrical conductivity of the composite are 97.6%, 165 HV and 25%IACS, respectively. There is a reaction between SiC and copper matrix at 950 ℃, and the generated product is Cu9Si.