锂在铝合金电极上的析出电位和扩散系数  

DEPOSITION POTENTIALS OF LI(Ⅰ)ON Al-Cu AND Al-RE ELECTRODES AND DIFFUSION COEFFICIENT OF LITHIUM IN LIQUID Al-Cu ALLOY

作　　者：常开国 赵敏寿[1] 

机构地区：[1]中国科学院长春应用化学研究所,长春130022

出　　处：《应用化学》1991年第4期90-92,共3页Chinese Journal of Applied Chemistry

摘　　要：铝锂合金是一种新型的航空材料,近十年来获得了迅速的发展。1985年发展了熔盐电解法制备铝锂合金新工艺。该法与其他物理冶金法相比,具有节省能源,设备简单,合金产品纯度高等优点。本文测得的析出电位及扩散系数为熔盐电解法制备铝锂合金提供了重要的参考数据。The deposition potenials of Li(I) on AI, Al-Cu, Al-RE and Mo electrodes and diffu-sion coefficient of lithium in liquid Al-Cu alloy have been measured by voltammetry andanodic chronopotentiometry respectively. A strong depolarization is observed in the depositionprocess of Li(I) on Al, Al-Cu, and Al-RE electrodes. In the range of 973～1073K, the co-relation between the diffusion coefficient and temperature can be represented by lnD = 5.70 -16150/T. The experimental results show an increase in the chemical diffusion coefficientwith increasing lithium content in the alloy matrix at concentrations used.

关 键 词：锂 铝合金 电极 析出电位 扩散系数 

分 类 号：V252.2[一般工业技术—材料科学与工程]