比较了采用直接煅烧、干燥后煅烧、喷雾干燥等3种方法处理水合ZrO2,再通过气流粉碎获得超微细粉ZrO2;同时用激光衍射法、光透法、场发射扫描电镜和BET法测试了粉末的性能.结果表明:直接煅烧水合ZrO2获得的粉末团聚严重,颗粒粗而均匀性差;水合ZrO2通过低温静止干燥,可以减少颗粒的团聚,提高粉末颗粒分布的均匀性,但效率低;喷雾干燥法处理水合ZrO2,通过动态反应,易获得细晶粒的球状颗粒,可避免粉末的团聚,且粉末分散性好、晶粒分布均匀.
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