摘要
采用单乳液和双乳液的方法制备了含Y2O33％（摩尔百分比）的ZrO2前驱体粉，经过600℃锻烧2h后获得了四方相ZrO2纳米粉。用TG-DTA、XRD、TEM、BET和激光粒度分析等分析手段对粉末及其前驱体进行了分析和表征。实验结果表明，二甲苯／span-80／水相体系具有较大的含水量，能改善目前用乳液法制粉产量低的缺点。
ZrO2 precursor powders containing 3% Y2O3 have been prepared via a single-emulsion processing route and a double-emulsion processing route, The calcination of the precursor powders at 600℃ for 2 hours led to tetragonal phase ZrO2 nanometer powders, the ZrO2 powders and the precursor powders were analyzed and characterized by TG-DTA, XRD, TEM, BET and laser particle size analyser. Experimental results indicated that xylol/span-80/water phase system can contain more water phase, which to a certain extent correct the defect of low output by emulsion route in preparing powders.
关键词
氧化锆
乳液法
纳米颗粒
球形
zirconia
emulsion
nanometer particles
spherical
