STUDIES OF PHYSICOCHEMICAL AND SURFACE-PROPERTIES OF ALUMINA MODIFIED WITH RARE-EARTH-OXIDES .1. PREPARATION, STRUCTURE AND THERMAL-STABILITY

被引：26

作者：

WACHOWSKI, L

KIRSZENSZTEJN, P

LOPATKA, R

CZAJKA, B

机构：

来源：

MATERIALS CHEMISTRY AND PHYSICS | 1994年 / 37卷 / 01期

关键词：

D O I：

10.1016/0254-0584(94)90067-1

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The effects of the kind and amount of certain lanthanide oxides (Ln =La, Ce, Pr, Nd and Sm) on the structure and thermal stability of transition aluminas have been investigated. Lanthanide oxide addition has been found to retard the transformation of gamma-Al2O3 to alpha-Al2O3 and the associated sintering. The presence of lanthanide aluminate with the perovskite-type structure is responsible for the thermal stabilization of transition alumina.

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页码：29 / 38

页数：10

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