电沉积法制备泡沫Ni的组织结构

STRUCTURE OF THE NICKEL FOAM PREPARED BY ELECTRODEPOSITION

观察了电沉积法制备泡沫Ｎｉ过程中各阶段的Ｎｉ层组织形态变化，结果表明：电镀后和６００℃空气处理４ｍｉｎ后的Ｎｉ层均为细晶组织，但经８５０℃和９８０℃的氢分解气氛处理４０ｍｉｎ后，均达到充分烧结，泡沫Ｎｉ表面平整致密。

The nickel layer structures of nickel foam at different stages in the'electrodepositionprocess' were observed, and it was found that the nickel layers after both electroplating and treatmentin air at 600 ℃ for 4 min possessed the microcrystalline structures with obvious flaw, but become thecompact nickel crystal ones with even surface and big crystal particles after enough sintering treatment inNH3 decomposition atmosphere at 85℃ or 980℃ for 40 min.