Reaction thermodynamics and kinetics on in situ Al_2O_3/Cu composites
Reaction thermodynamics and kinetics on in situ Al_2O_3/Cu composites作者机构:Hebei Univ of Technology Tianjin China
出 版 物:《中国有色金属学会会刊:英文版》 (Transactions of Nonferrous Metals Society of China)
年 卷 期:1999年第9卷第3期
页 面:617-622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]
主 题:Al 2O 3/Cu composites internal oxidation thermodynamics kineticsDocument code: A
摘 要:The preferred internal oxidation of aluminum in Cu Al alloy was used to obtain in situ Al 2O 3/Cu composites. The reinforcement particles were mainly γ Al 2O 3, some θ Al 2O 3 and a little α Al 2O 3. Thermodynamics analyses show that the chemical reactions are 3Cu 2O+2Al=6Cu+Al 2O 3 or 3CuO+2Al=3Cu+Al 2O 3. A related equilibrium diagram was drawn. The experiments and investigation show that the formation rate of Al 2O 3 was controlled by the diffusion of oxygen in matrix.