A novel green nonaqueous sol-gel process for preparation of partially stabilized zirconia nanopowder

Author:

Feng Guo1,Jiang Weihui2,Liu Jianmin1,Zhang Quan1,Wu Qian1,Miao Lifeng1

Affiliation:

1. National Engneering Research Center for Domestic and Building Ceramics, Jingdezhen, PR China

2. National Engneering Research Center for Domestic and Building Ceramics, Jingdezhen, PR China + Department of Materials Science and Engineering Jingdezhen Ceramic Institute, Jingdezhen, PR China

Abstract

A novel green nonaqueous sol-gel process was developed to prepare 3mol% Y2O3-doped ZrO2 nanopowder from zirconium oxychloride and without need for washing of the obtained particles. It was shown that highly dispersive nanometer-scale zirconia powder with the particle size of 15-25 nm and BET surface area of 41.2m2/g can be prepared. The sintering behaviour was also investigated. Density of the translucent body sintered at 1400?C is 98.7 ? 0.3% of its theoretical density and the surface and cross section areas are dense without holes or other defects. The bending strength of the sintered sample is 928 ? 64MPa.

Publisher

National Library of Serbia

Subject

Ceramics and Composites

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