Crystallization kinetics of 3 mol% Y2O3-ZrO 2 (3Y-PSZ) nanopowders prepared by a coprecipitation process

Huey Er Lee, Chih Wei Kuo, Yun Hwei Shen, Shaw Bing Wen, Moo Chin Wang

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The crystallization kinetics of the 3 mol% yttra (Y2O 3) partially stabilized zirconia (3Y-PSZ) nanopowders has been investigated by isothermal processes. When the 3Y-PSZ precipitates are calcined at 773 ∼ 1073 K for 2 h, the crystal structure is composed of tetragonal and monoclinic ZrO2. The crystallite size of tetragonal ZrO2 increases with calcinations time and temperature increased. The monoclinic ZrO2 content increases with the calcinations temperature and time increased. However, the tetragonal ZrO2 content decreases when the calcinations temperature and time increased. The activation energy from tetragonal isothermal transformation to monoclinic is 7.02 kJ.mol-1.

Original languageEnglish
Title of host publicationA Global Road Map for Ceramic Materials and Technologies
Subtitle of host publicationForecasting the Future of Ceramics, International Ceramic Federation - 2nd International Congress on Ceramics, ICC 2008, Final Programme
Publication statusPublished - 2008 Dec 1
Event2nd International Congress on Ceramics, ICC 2008 - Verona, Italy
Duration: 2008 Jun 292008 Jul 4

Publication series

NameA Global Road Map for Ceramic Materials and Technologies: Forecasting the Future of Ceramics, International Ceramic Federation - 2nd International Congress on Ceramics, ICC 2008, Final Programme

Other

Other2nd International Congress on Ceramics, ICC 2008
CountryItaly
CityVerona
Period08-06-2908-07-04

All Science Journal Classification (ASJC) codes

  • Ceramics and Composites

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