Entrapped Gas Effect in the Fast Firing of Yttria‐Doped Zirconia
作者:
Do‐Hyeong Kim,
Chong Hee Kim,
期刊:
Journal of the American Ceramic Society
(WILEY Available online 1992)
卷期:
Volume 75,
issue 3
页码: 716-718
ISSN:0002-7820
年代: 1992
DOI:10.1111/j.1151-2916.1992.tb07865.x
出版商: Blackwell Publishing Ltd
关键词: zirconia;yttria;microwaves;firing;chlorine
数据来源: WILEY
摘要:
Compared to conventional sintering of Y2O3‐doped ZrO2using a slow heating rate of 10°C/min, microwave sintering and fast firing using a rapid heating rate of about 500°C/min resulted in lower final sintered densities. It is attributed to the residual chlorine in commerical zirconia powders manufactured by the chloride process. By calcining at 1100°C for 1 h to remove residual chlorines from the powder compacts, near full densities (>99% of theoretical) could be obtained by both fast firing and microwave sinte
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