DENSIFICATION BEHAVIOR OF HIGH-PURITY AL2O3 AND AL2O3-15 VOL-PERCENT-ZRO2

被引：0
|
作者：
HARADA, H
SAKUMA, T
机构：
来源：
NIPPON SERAMIKKUSU KYOKAI GAKUJUTSU RONBUNSHI-JOURNAL OF THE CERAMIC SOCIETY OF JAPAN | 1991年 / 99卷 / 02期
关键词：
ALUMINA; ZIRCONIA; ALUMINA ZIRCONIA; DENSIFICATION; GRAIN GROWTH; GRAIN BOUNDARY DIFFUSION; RELATIVE DENSITY;
D O I：
暂无
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：
The densification and grain growth of high purity Al2O3 and Al2O3-15 vol%ZrO2 were examined in the final stage of sintering. Both densification and grain growth took place much faster in Al2O3 than in Al2O3-15 vol%ZrO2. The densification rate of Al2O3 was explained by the rate equation proposed by Ashby et al., which was slightly modified by taking into account the actual distribution of pores. On the other hand, the densification rate of Al2O3-15 vol%ZrO2 was much sluggish than that estimated from the modified rate equation. The grain-boundary diffusion of constituent ions might be retarded by the zirconia addition.
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页码：136 / 140
页数：5
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