摘要
研究了粉末烧结Ｃｕ－０．７５％（ｗｔ）Ａｌ合金在高纯氮气体介质中的内氧化动力学。结果表明：内氧化动力学曲线，前期服从抛物线规律，后期服从直线规律。测出氧在Ｃｕ基体中的扩散系数和内氧化过程激活能，进而得到不同阶段反应界面迁移的速度方程。
Internal oxidation kinetics of the sintered Cu 0.75%(wt) Al alloy has been studied in highly pure nitrogen gases. The results show that the kinetic curves of internal oxidation obey parabolic law in initial stage and linear regularity in later stage. Diffusion coefficient of oxygen and activation energy are determined from the internal oxidation kinetics so as to obtain the migration velocities of the reacting interface in different stages.
出处
《腐蚀科学与防护技术》
CAS
CSCD
1996年第4期291-295,共5页
Corrosion Science and Protection Technology
基金
金属腐蚀与防护国家重点实验室资助
关键词
粉末烧结
内氧化
动力学
扩散
铜铝合金
sintered Cu Al alloy, internal oxidation, kinetics, diffusion
