镧系合金表面镀Pd工艺研究  

Research of the Surface of the La-alloy Plated Pd

作　　者：桑革[1] 沈崇雨[1] 张义涛[1] 曹伟[1] 朱永法[1] 叶小球[1] 孙颖[1] 

机构地区：[1]中国工程物理研究院,四川绵阳621900

出　　处：《表面技术》2006年第5期29-33,共5页Surface Technology

基　　金：中国工程物理研究院基金项目资助(20040870)

摘　　要：研究了通过表面处理改善镧系贮氢合金性能的技术。采用敏化、活化和化学镀技术，研究了镀膜时间、镀膜温度对Pd形貌、Pd含量的影响，在合金粉末表面镀制了Pd薄膜。结果表明：优化的镀覆工艺为化学镀Pd，其适宜时间为2h，镀液温度在50～60℃之间，镀液浓度（以PdCl2计算）为1.70～2.55g/L之间。The surface-treatment technology to improve properties of LaNiS-based hydrogen storage alloy has been studied. The Pd membrane has been plated on the surface of the alloy powder by sensitizing, activating and chemical plating technology, and the influence of plating time and temperature on the appearance and content of Pd have also been studied. Experimental results show that the optimized plating technology conditions as following： the time is 2h, the temperature is 50-60℃ and the concentration of PdC12 is 1.70-2.55g/L.

关 键 词：贮氢合金 表面处理 吸放氢特性 化学镀 镀钯 工艺参数 

分 类 号：TG139[一般工业技术—材料科学与工程]