研究了高分子分散剂及低温处理在制备无团聚超细氧化锆粉末中的作用。结果表明 ,采用在沉淀开始时添加高分子分散剂 ,清洗至湿凝胶呈中性后 ,通过低温处理 ,不仅可以大大缩短清洗周期 ,而且制备出的氧化锆粉末没有硬团聚现象 ,粉末粒度达到 10 nm～ 30 nm,并且对其机理进行了讨论和分析 The role of polymer dispersant and low temperature treatment in the preparation of non-agglomerated ultrafine zirconia powder was studied. The results showed that the addition of polymeric dispersant at the beginning of the precipitation to neutralization of the wet gel followed by low temperature treatment not only shortened the cleaning cycle but also did not cause hard agglomeration of the zirconia powder. The particle size of the powder reached 10 nm ~ 30 nm, and its mechanism was discussed and analyzed