SINTERING OF CERIA-DOPED TETRAGONAL ZIRCONIA CRYSTALLIZED IN ORGANIC-SOLVENTS, WATER, AND AIR

被引：30

作者：

SATO, T ^{[1
]}

DOSAKA, K ^{[1
]}

YOSHIOKA, T ^{[1
]}

OKUWAKI, A ^{[1
]}

TORII, K ^{[1
]}

ONODERA, Y ^{[1
]}

机构：

[1] GOVT IND RES INST,TOHO KU,SENDAI 983,JAPAN

来源：

JOURNAL OF THE AMERICAN CERAMIC SOCIETY | 1992年 / 75卷 / 03期

关键词：

D O I：

10.1111/j.1151-2916.1992.tb07841.x

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Amorphous CeO2-ZrO2 gels were prepared by coprecipitation in ammonia solutions. The onset of crystallization of the gels, from calcining in air, was 420-degrees-C, while 200-degrees to 250-degrees-C in the presence of water and organic solvents such as methanol and ethanol. The sintering behaviors of CeO2-ZrO2 powders were sensitive to the crystallizing conditions, since hard agglomerates formed when the precipitated gels were crystallized by normal calcination in air, whereas soft agglomerates formed when they were crystallized in water or organic solvents. CeO2-ZrO2 powders crystallized in methanol and water at 250-degrees-C were sintered to full theoretical density at 1150-degrees and 1400-degrees-C, respectively, whereas that crystallized by calcination in air at 450-degrees-C was sintered to only 95.2% of theoretical density, even at 1500-degrees-C.

引用

页码：552 / 556

页数：5

共 16 条

[1]

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[2]

HABERKO K, 1979, CERAMURGIA INT, V5, P148

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