摘要
提出了一种制备泡沫镍的新方法——喷射电沉积法。该方法基于高电流密度容易生成多孔枝晶沉积层的原理,制备了具有简单形状的泡沫镍试样。研究了相关工艺参数(电解液成分、电流密度、电解液喷射速度等)对泡沫镍试样的微观结构影响,结果表明:多孔沉积层的孔壁由枝晶构成,孔壁围成了孔洞,孔隙率在30%～70%之间;随着电流密度的增大,泡沫镍的孔隙率逐渐减小;随着电解液喷射速度的提高,泡沫镍的孔隙率逐渐增大。
A new nickel foam preparation method-jet electrodeposition was presented.This method was based on principle of high current density easily built porous dendrite deposition layer,the examples with simple sharp were prepared.Effects of the relevant process parameters such as electrolyte composition,current density and electrolyte jet speed on microstructure of the sample were studied.The results indicate that hole wall in porous electrodeposition layer is constituted by dendrite.the porosity of examples ranges from 30%~70%.the porosity of porous nickel increases with increasing in current density and decreasing in electrolyte jet speed.
出处
《中国机械工程》
EI
CAS
CSCD
北大核心
2011年第17期2084-2087,共4页
China Mechanical Engineering
基金
国家自然科学基金资助项目(50575104)
淮海工学院自然科学基金资助项目(Z2009003)
关键词
泡沫镍
喷射电沉积
孔隙率
电流密度
porous nickel
jet electrodeposition
porosity
current density
