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采用ＥＤＴＡ（乙二胺四乙酸）溶胶－凝胶法制备了ＺｒＯ２－８％Ｙ２Ｏ３（摩尔分数）纳米粉末，并研究了乙二醇对粉末平均粒径和团聚体强度的影响机理．结果表明：在溶液中加入乙二醇，可取代氢键而参与ＥＤＴＡ络合物分子之间的聚合反应，改善凝胶稳定性，从而制得均匀透明的凝胶，并在一定程度上减少了硬团聚．经４００℃，２ｈ再升至７００℃保温２ｈ煅烧后，粉末比表面积为３５ｍ２／ｇ，平均粒径约２８ｎｍ；颗粒尺寸分布范围极窄，中位粒径ｄ５０仅为０．４４μｍ，且大多为软团聚．
The ZrO2-8% Y2O3 nano-powder was prepared by EDTA (ethylenediaminetetraacetic acid) sol-gel method, and the influence mechanism of ethylene glycol on the average particle size and agglomerate strength was studied. The results showed that the addition of ethylene glycol to the solution could replace the hydrogen bond to participate in the polymerization reaction between the EDTA complexes and improve the stability of the gel, so as to obtain a uniform and transparent gel and to a certain extent reduce Hard reunion. After 400 ℃, 2h and then to 700 ℃ for 2h after calcination, the powder surface area of 35m2 / g, the average particle size of about 28nm; particle size distribution is very narrow, median particle size d50 only 0.44μm, and mostly Soft reunion.