电解法制备微细镍粉的实验研究  

Experimental study on electrolytic method of fine nickel powder preparation

作　　者：谷晴晴[1] 李成威[1] 王飞飞[1] 陈雪婷[1] 姚丹[1] 马壮[1] 

机构地区：[1]辽宁科技大学材料与冶金学院,辽宁鞍山114051

出　　处：《宁夏工程技术》2013年第3期255-258,共4页Ningxia Engineering Technology

摘　　要：以六水合氯化镍和氯化铵为主盐,研究了镍离子质量浓度、电流密度、电极间距、电解液pH值、取粉时间、温度、阴极材料、NH4Cl质量浓度对电解镍粉粒度的影响.实验表明,在常温下,用铜板做阴极,溶液pH=4,添加NH4Cl质量浓度10 g/L,镍离子质量浓度2.5 g/L,电流密度3 500 A/m2,电极间距3 cm,取粉时间30 s,得到的粉末平均粒径为2.5μm.NiCl2·6H2O and NH4Cl were adopted as main salt,the effect were researched,include concentration of Ni2+ and current density,polar distance,solution pH value,take powder time,temperature,cathode materials,concentration of NH4Cl on electrolytic nickel powder particle size influence.Results show that the best technologic are obtained at normal temperature,with copper cathode,solution pH value of 4,concentration of NH4Cl of 10 g/L,concentration of Ni2+ of 2.5 g/L,current density of 3500 A/m2,electrode spacing of 3 cm,take powder time of 30 s,which can get powder mean grain size is 2.5 μm.

关 键 词：微细镍粉 镍粉 电解工艺 

分 类 号：TF123.2[冶金工程—粉末冶金]