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

Authors
WACHOWSKI L KIRSZENSZTEJN P LOPATKA R CZAJKA B
Citation
L. Wachowski et al., STUDIES OF PHYSICOCHEMICAL AND SURFACE-PROPERTIES OF ALUMINA MODIFIEDWITH RARE-EARTH-OXIDES .1. PREPARATION, STRUCTURE AND THERMAL-STABILITY, Materials chemistry and physics, 37(1), 1994, pp. 29-38
Citations number
28
Categorie Soggetti
Material Science
Journal title
Materials chemistry and physics → ACNP
ISSN journal
02540584
Volume
37
Issue
1
Year of publication
1994
Pages
29 - 38
Database
ISI
SICI code
0254-0584(1994)37:1<29:SOPASO>2.0.ZU;2-0
Abstract
The effects of the kind and amount of certain lanthanide oxides (Ln =L a, Ce, Pr, Nd and Sm) on the structure and thermal stability of transi tion aluminas have been investigated. Lanthanide oxide addition has be en found to retard the transformation of gamma-Al2O3 to alpha-Al2O3 an d the associated sintering. The presence of lanthanide aluminate with the perovskite-type structure is responsible for the thermal stabiliza tion of transition alumina.