摘要：介绍了化学共沉淀—凝胶法制备ZrO2基纳米超微粉新技术。该法利用廉价原料和简单工艺过程可工业化生产杂质总量低于0.1wt％、平均粒径约10nm、分散性良好、粒度分布极窄的高纯ZrO2或ZrO2基纳米超微粉。对所制粉体的相结构和烧结特性也进行了研究．
关键词：纳米超微粉;氧化锆;化学其沉淀─凝胶法;粉体特性;
Abstract：A new technique named chemical coprecipitation-gel method of producing nano - sized ZrO2 based powders is introduced in this paper. By this method, high purity and ultrafine ZrO2 powder or synthesised ZrO2 based powder with about 10nm equivalent diameter, lower than 0. 1wt% total content of impurities, particles with high dispersity and very narrow size disribu-tion can be produced using cheap materials and through convenient technological process. Thecharacteristics of phase structure and sintering ability of the nano - sized ZrO2 powders are also in.vestigated.
Key words：nano - sized powder; ZrO2 ; chemical coprecipitation - gel method; characteristics of powders
