A method for improving the long-term storability of hydriding alloys by air water exposure

被引:15
作者
Liu, FJ
Suda, S
机构
[1] Kogakuin University, Department of Chemical Engineering, Hachioji-shi, Tokyo, 192, 2665-1, Nakano-machi
关键词
F-treatment technique; fluorinated surface structure; surface contamination; long storability; initial activation; incubation time;
D O I
10.1016/0925-8388(95)01856-5
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
The F-treatment effects on long-term storability of several conventional hydriding alloy systems including AB(5) and A(2)B as well as La-substituted AB(2)-types were systematically investigated as functions of surface condition, particle size and air or water exposure. It was found that the fluoride coating formed through this proposed F-treatment technique could provide substantial protection from surface contamination resulting from long-time exposure to air and ever more so to water. The F-treatment was particularly effective in protecting surface reactivity from both air and water exposure for small particles which were ground by hydriding-dehydriding cycles and had a large specific surface area.
引用
收藏
页码:411 / 416
页数:6
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