摘要
用Ｈ２ＷＯ４和ＮｉＣｌ２碱性水溶液与ＦｅＣｌ２和Ｙ２Ｏ３的酸性水溶液快速混合方法，在超声喷雾热转换装置中制备ＷＮｉＦｅＹ系纳米级复合氧化物粉末。通过Ｘ射线衍射及透射电镜分析，研究了复合粉末的物相组成、颗粒形貌及粒径范围．结果表明，采用上述两种溶液快速混合及超声喷雾热转换的方法，可以制备成分均匀的复合氧化物粉末。其物相组成为ＷＯ３，ＮｉＯ，Ｙ２Ｏ３，粉末的千粒平均粒径为３２ｎｍ，颗粒形貌近似球形，用ＢＥＴ法测定的粒径为３０ｎｍ。
This paper presents a technique of synthesizing W Ni Fe Y nanometer oxide composite powders,in which an acid solution of FeCl 2 and Y 2O 3 was mixed with a basic solution of H 2WO 4,NiCl 2 and went through an ulra sonic spray equipment to transform into composite powders. Phase composition、particle morphology and particle distribution of synthesized powders have been examined by X ray diffraction and TEM.Experimental results indicate that powders are nearly spherical with an average particle size of 32 nm,BET particle size 30nm and with phase composition of WO 3,NiO,Y 2O 3.This means that the technique is effective to produce composite oxide powders being starting materials for nanometer hard metals.
出处
《粉末冶金工业》
CAS
1998年第6期23-26,共4页
Powder Metallurgy Industry
基金
国家863资助项目
