摘要
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 solgel process using zirconium npropoxide(ZNP) containing acetylacetone as the precursor. The relationship between Acac/Zr(mol),H2O/Zr(mol) and the hydrolysis of ZNP in the system of zirconium npropoxideacetylacetoneytrium nitratenpropanolwater is investigated. The characterization of powdes is performed by TGDTA,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.
关键词
氧化锆
超细粉
溶胶-凝胶法
正丙醇锆
受控水解
yttria stabilized zirconia,ultrafine powder, controlled hydrolysis solgel method