Inner Oxide Fabrication and Severe Plastic Deformation Microstructure Homogenization of Silver Cerium Oxide Composites

作     者：周晓龙 陈敬超 曹建春 杜焰 张昆华 孙加林 

作者机构：Key Laboratory of Advanced Materials of Yunnan Province Kunming University of Science and Technology Faculty of Materials and Metallurgy Engineering Kunming University of Science and Technology Yunnan Province Association for Science and Technology 

出 版 物：《Journal of Rare Earths》 (稀土学报(英文版))

年 卷 期：2006年第S2期

页      面：21-24页

核心收录：

学科分类：08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 

基　　金：Project supported by Yunnan Province Key Technologies Research and Development Program (2002GG04) 

主　　题：silver cerium oxide composites microstructure homogenization rare earths 

摘      要：Fabrication of silver thulium oxide by inner oxide method was researched. The result shows that the microstructure is no-homogenization as particles reinforcing metal matrix composites. The CeO2 particles exist in inner silver cerium alloy. This no-homogenization microstructure can not be dispersed by general extrusion technology. Severe plastic deformation was adopted to disperse the CeO2 particles. The result shows that the microstructure is homogeneous and the CeO2 particles are dispersed after severe plastic deformation. The relationship between true strain (η) of severe plastic deformation and diameter (d0, d) of particles, which is η≈ln(d20/d2), was also discussed.