大塑性变形Ag-20wt%Cu复合材料的电学性能  

Study on Electric Properties of Severe Plastic Deformation Processed Ag-20wt%Cu Composites

作　　者：耿永红[1] 郭迎春[1] 张吉明[1] 管伟明[1] 陈松[1] 张昆华[1] 

机构地区：[1]昆明贵金属研究所,云南昆明650106

出　　处：《贵金属》2008年第2期19-23,61,共6页Precious Metals

基　　金：云南省科研院所技术开发研究专项(2002KFZX-31);云南省中青年学术带头人后备人才项目(2006py01-42)基金资助

摘　　要：通过大塑性变形方法制备了Ag-20Cu复合材料,研究了其不同应变条件下的微观组织结构和电学性能,讨论了应变程度对电学性能的影响。在现有理论的基础上,推导出了真实应变η与电学性能的关系。研究结果表明:实验值与理论预测值有较好的一致性。最后讨论了该理论公式的实用性和实际意义。A new Ag-20Cu composite was obtained by Severe Plastic Deformation （SPD）. The microstructure, electrical properties and relationship between true strain （η） and electrical properties were studied. A new model was employed to deduce this relationship. The results showed that the tested values of electrical resistivity are in agreement with those of the new modelg. In the end, the practical significances of the new model were discussed.

关 键 词：复合材料 大塑性变形 Ag基复合材料 电学性能 

分 类 号：TG146.32[一般工业技术—材料科学与工程]