PROCESSING AND MECHANICAL-BEHAVIOR OF AL2O3 ZRO2 NANOCOMPOSITES/

Citation
Gj. Liu et al., PROCESSING AND MECHANICAL-BEHAVIOR OF AL2O3 ZRO2 NANOCOMPOSITES/, Materials research bulletin, 33(2), 1998, pp. 281-288
Citations number
28
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Material Science
Journal title
ISSN journal
0025-5408
Volume
33
Issue
2
Year of publication
1998
Pages
281 - 288
Database
ISI
SICI code
0025-5408(1998)33:2<281:PAMOAZ>2.0.ZU;2-P
Abstract
Alumina-zirconia ceramic nanocomposites were produced from nanoscale Y 2O3-stabilized ZrO2, and nanoscale Al2O3 powders. The effect of ZrO2 c ontent on the densification, sintering behavior, mechanical properties , and microstructure of the composites was investigated. The results s how that ZrO2 particles inhibit the densification and also retard the matrix alumina grain growth. Y2O3-stabilized ZrO2 powder in the Al2O3/ ZrO2 nanocomposites is a strengthening and toughening agent, where the maximum strength and toughness of the composites are 1 GPa and 10 MPa .m(1/2), respectively. (C) 1998 Elsevier Science Ltd.