本研究采用了一种新颖的粉体制备方法-醇-水溶液加热法来制备纳米ZrO2（Y2O3）粉体．实验结果表明：通过选择适当的条件，该方法可制得粒径小、团聚少的纳米ZrO2（Y2O3）粉体．与通常的共沉淀法相比。该方法制得的粉体因形成一种“包裹”结构，使得单斜相含量随煅烧温度的升高而减少，从而更有利于烧结．
A novel method which involved the heating of a ZrOCl2 and Y(NO3)3 solution with an alcohol-water mixture as a solvent was used to synthesize the
nanoparticles of ZrO2(3Y). By choosing the composition of the solvent mixture and adding appropriate dispersant, weakly agglomerated powders of ZrO2(3Y)
with the average particle size of 11～15nm can be obtained. Contrast with the ordinary trend of the powder synthesized by coprecipitation, the monoclinic
phase in this powder decreases when the calcination temperature rising from 600℃ to 900℃, the mechanism of this phenomenon was investigated.
High-density and fine-particle Y-TZP ceramics were obtained by pressureless sintering.
参考文献
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