利用激光衍射法对ZrO2 粉末进行粒度测量 ,分别从分散介质和样品浓度对测量条件进行优化设计。采用含 0 .2 % ,0 .4 % ,0 .6 % ,0 .8%及 1.0 %的六偏磷酸钠水溶液 ,在样品浓度为7% ,10 % ,13%和 16 %的情况下进行粒径分析。结果表明 ,在 0 .2 %～ 0 .4 %的六偏磷酸钠溶液下 ,样品浓度为 7%左右时所测得的结果较为理想。 The particle size of ZrO2 powder was measured by laser diffraction method. The measurement conditions were optimized from the dispersion medium and sample concentration respectively. Using aqueous sodium hexametaphosphate solutions containing 0 .2%, 0 .4%, 0 .6%, 0 .8% and 1.0% at sample concentrations of 7%, 10%, 13% and 16% Particle size analysis. The results showed that the optimal results were obtained when the sample concentration was about 7% at 0.2% ~ 0.4% sodium hexametaphosphate solution.