(中南工业大学粉末冶金研究所， 长沙 410083)
摘 要: 首次采用EDTA络合物型溶胶-凝胶法制备平均粒径为10 nm的ZrO2-8%(摩尔分数，%，下同)Y2O3纳米粉末。 用DTA/TG， XRD， BET， TEM等方法对粉末进行了表征。研究了pH值、反应物浓度和EDTA加入量等因素对粉末比表面积的影响。
关键字: 络合物 溶胶-凝胶法 ZrO2 纳米粉末 EDTA
（Institute of Powder Metallurgy,Central South University of Technology, Changsha 410083, P. R. China）
Abstract:Nanometer ZrO2-8(mole fraction, %) Y2O3 powders with the average particle size of 10 nm were prepared by the EDTA sol-gel method. DTA/TG, XRD, BET and TEM were employed to characterize the powders . The operating conditions such as pH value, concentration of solution, and quantity of EDTA were investigated in order to understand their effects on the specific surface area of the powders.
Key words: complex sol-gel ZrO2 nanometer powder EDTA
