INFLUENCE OF YTTRIUM AND OF THE OXYGEN-PRESSURE ON ALPHA-ALUMINA MICROSTRUCTURE - RELATION WITH MECHANICAL-PROPERTIES

Authors
LOUDJANI MK HAUT C PARISOT S
Citation
Mk. Loudjani et al., INFLUENCE OF YTTRIUM AND OF THE OXYGEN-PRESSURE ON ALPHA-ALUMINA MICROSTRUCTURE - RELATION WITH MECHANICAL-PROPERTIES, Radiation effects and defects in solids, 134(1-4), 1995, pp. 233-237
Citations number
12
Categorie Soggetti
Physics, Condensed Matter","Nuclear Sciences & Tecnology
Journal title
Radiation effects and defects in solids → ACNP
ISSN journal
10420150
Volume
134
Issue
1-4
Year of publication
1995
Pages
233 - 237
Database
ISI
SICI code
1042-0150(1995)134:1-4<233:IOYAOT>2.0.ZU;2-#
Abstract
The influence of yttrium doping on the alumina microstructure is corre lated to the Y amount and to the oxygen pressure. A low oxygen pressur e promotes the solubility of yttrium in the bulk, its segregation in g rain boundaries and increases the alumina toughness. Moreover alumina grain growth is limited either by garnet precipitation or by yttrium s egregation along boundaries.