摘要
采用新的阳极溶解的计时电位法,测定了稀土金属镧在铝液中的扩散系数。在973K时,测得(Al)=(1.21±0.02)×15^(5)cm^2·s^(-1)。在953～1053K温度范围内,扩散系数与温度的关系为lgD_(La)(Al)=1.04×10^(-4)—4770/T,计算出扩散激活能Q=91.34KJ/mol。
The diffusion coefficient of La in liquid A1 has been measured by anodic chronopotentiometry. At temperature 973K, (?)=(1.21±0.02)×10^(-5)cm.s^(-1). The relationship between diffusion coefficient and temperature is expressed by the equation lgD=1.04×10^(-4)-4770/T in the range of temperature 953～1053K. Activation energy is 91.34kJ/mol.
出处
《中国稀土学报》
CAS
CSCD
北大核心
1989年第4期54-57,共4页
Journal of the Chinese Society of Rare Earths
基金
国家自然科学基金
