摘要：采用溶胶凝胶快速热解法制备了ZrO₂超细粉体 ,详细考察了各种制备参数对胶凝时间以及样品性质的影响规律。结果表明 :胶凝时间受溶液中脲含量及胶凝温度影响显著 ;而热解温度、胶溶剂用量、胶凝温度和溶液组成对样品的性状、比表面积、孔分布及粒径均有不同程度的影响

关键词：溶胶凝胶法;快速热解法;ZrO₂超细粉体;

Abstract： Rapid themolysis approach with peptizated － gel is employed to prepare ZrO₂ ultrafine powder，and the effects of preparation parameters on the gelation time and the properties of powders are well investigated．T he results indicate that the gelation time depended on both the urea amount and gelation temperature，while the themolysis temperature，peptizer amount，gelation temperature and solution composistion show the effects at various degrees on the morphology，BET surface areapore distribution and particle size of powders． 

Key words：peptizated－gel method；rapid themolysis approach； ZrO₂ ultrafine powder