PREPARATION OF MONODISPERSED ZIRCONIA-ALUMINA AND YTTRIA-ALUMINA PARTICLES

被引：6

作者：

OGIHARA, T ^{[1
]}

WADA, K ^{[1
]}

YOSHIDA, T ^{[1
]}

YANAGAWA, T ^{[1
]}

OGATA, N ^{[1
]}

YOSHIDA, K ^{[1
]}

MATSUSHITA, N ^{[1
]}

机构：

[1] TAKEFU FINE CHEM CO LTD,TAKEFU,FUKUI 915,JAPAN

来源：

CERAMICS INTERNATIONAL | 1993年 / 19卷 / 03期

关键词：

D O I：

10.1016/0272-8842(93)90037-R

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：

Alkoxide route involving the use of an emulsion technique enabled monodispersed, spherical zirconia-alumina and yttria-alumina particles of submicrometer size to be formed. The effects of the concentration of reactants and their ratio, organic solvents, and HPC dispersant on particle size, size distribution, morphology, and aggregation were investigated. EDS analysis showed little particle compositional fluctuation. Unstabilized tetragonal zirconia was retained in an alumina matrix up to 15 mol% zirconium alkoxide content at 1400 degrees C. Yttrium aluminum garnet was formed in yttria-alumina powders calcined at 1000 degrees C. The calcination at 1000 degrees C also resulted in particles that retained their spherical morphology. The isoelectric point of zirconia-alumina and yttria-alumina particles occurred from pH 9 to 10.

引用

页码：159 / 168

页数：10

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