Journal of Inorganic Materials

• Research Paper • Previous Articles     Next Articles

Synthesis of Yttria-Stabilized Zirconia Nanoparticles by Heating of Alcohol-Aqueous Salt Solutions

LI Wei; GAO Lian; GUO Jing-Kun   

  1. State Key Lab of High Performance & Superfine Mircostructure; Shanghai Institute of Ceramics; Chinese Academy of Sciences Shanghai 200050 China
  • Received:1998-01-08 Revised:1998-02-23 Published:1999-02-20 Online:1999-02-20

Abstract: 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.

Key words: heating of alcohol-aqueous salt solutions, ZrO2(3Y), nanoparticles

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