溶胶-凝胶法制备氧化锆粉体  

Preparation of Zirconia Powders by Sol-gel Process

作　　者：徐黎岭[1] 崔硕[1] 吴立昂[1] 乔旭升[1] 樊先平[1] 

机构地区：[1]浙江大学,浙江杭州310027

出　　处：《稀有金属材料与工程》2010年第S2期501-503,共3页Rare Metal Materials and Engineering

基　　金：浙江省科技计划项目资助(2008C21051)

摘　　要：以正丙醇锆为锆源,采用溶胶-凝胶法制备了ZrO2粉体。研究了硝酸含量对凝胶时间及热处理温度对ZrO2晶型的影响规律。通过控制硝酸含量可以有效改变凝胶时间;通过锆醇盐水解缩聚制备的ZrO2干凝胶,在低温下热处理首先形成ZrO2四方相,在较高温度热处理后才转变为单斜相;锆醇盐水解缩聚制备的氧化锆粉体在1200℃以后烧结过程明显加快。The zirconia powders were synthesized by sol-gel process. The effect of acid concentration on the gel times and effect of heat treatment on the crystal phases of ZrO2 were investigated. The gel time increased with increase of HNO3.concentration The stable tetragonal phase ZrO2 could be formed at lower temperature.

关 键 词：溶胶-凝胶法 ZRO2粉体 晶型 

分 类 号：TB383.3[一般工业技术—材料科学与工程]