醇盐受控水解法制备YSZ超细粉及其表征

Preparation and Characterization of YSZ Ultrafine Powder by the Controlled Hydrolysis Process of Zirconium NPropoxide

利用正丙醇锆受控水解方法制备ＹＳＺ粉．研究在正丙醇锆－硝酸钇－乙酰丙酮体系中，Ａｃａｃ／Ｚｒ（ｍｏｌ），Ｈ２Ｏ／Ｚｒ（ｍｏｌ）对正丙醇锆水解影响．采用ＴＧ－ＤＴＡ，ＸＲＤ，Ｒａｍａｎ光谱，ＢＥＴ，ＴＥＭ等手段对ＹＳＺ粉体进行表征．发现本体系获得的粉体立方相成相温度可低至３５０℃。

YSZ ultrafine powders are prepared by the controlled hydrolysis solgel process using zirconium npropoxide(ZNP) containing acetylacetone as the precursor. The relationship between Acac/Zr(mol),H2O/Zr(mol) and the hydrolysis of ZNP in the system of zirconium npropoxideacetylacetoneytrium nitratenpropanolwater is investigated. The characterization of powdes is performed by TGDTA,XRD,Raman spectrum,BET,TEM etc. It is found that the cubic phase of YSZ appeared at 350℃,and the particle size of monodispersed YSZ cubic phase is about 10nm.