喷射电沉积制备泡沫镍实验研究  

Experimental Research on Jet Electrodeposited Porous Nickel

作　　者：陈劲松[1] 黄因慧[2] 田宗军[2] 刘志东[2] 

机构地区：[1]淮海工学院,连云港222005 [2]南京航空航天大学,南京210016

出　　处：《中国机械工程》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)

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.

关 键 词：泡沫镍 喷射电沉积 孔隙率 电流密度 

分 类 号：TG153[金属学及工艺—热处理]