共沉淀法制备硬质合金用微细球形Ni-Co合金粉末的研究

Study on Preparation of Fine Spherical Ni Co Alloy Powder for Cemented Carbides by Coprecipition

研究了以共沉淀法制备的镍－钴草酸盐为前体，在一定温度下分解制备Ｎｉ－Ｃｏ合金粉末的方法。分析了金属粉末的化学成分。检查了Ｎｉ、Ｃｏ草酸盐粉末及金属粉末的粒度和形貌，通过Ｘ射线衍射测晶格常数的方法证明了产物粉末确系金属固溶化合金粉。

A process for making Ni Co alloy powder from a precursor of Ni Co oxalate prepared by coprecipitation method was investigated,its chemical compositions were analyzed.The properties and morphology of precursor and alloy powder were determined.X ray lattice constant evaluation shows that the powder product is a Ni Co solid solution.