EFFECT OF CHEMICALLY ADDED ZIRCONIA AND YTTRIA ON THE MECHANICAL-PROPERTIES OF ZIRCONIA-DISPERSED ALUMINA

Authors
RANJBAR K RAO BT MOHAN TRR HARENDRANATH CS
Citation
K. Ranjbar et al., EFFECT OF CHEMICALLY ADDED ZIRCONIA AND YTTRIA ON THE MECHANICAL-PROPERTIES OF ZIRCONIA-DISPERSED ALUMINA, American Ceramic Society bulletin, 73(2), 1994, pp. 63-66
Citations number
10
Categorie Soggetti
Material Science, Ceramics
Journal title
American Ceramic Society bulletin → ACNP
ISSN journal
00027812
Volume
73
Issue
2
Year of publication
1994
Pages
63 - 66
Database
ISI
SICI code
0002-7812(1994)73:2<63:EOCAZA>2.0.ZU;2-3
Abstract
Alumina powders dispersed with monoclinic, tetragonal, and cubic zirco nia were prepared by evaporating a colloidal dispersion. of alumina po wders in. solutions containing zirconium and yttrium salts. The dried and calcined powders were compacted, sintered, and characterized. The results demonstrated a clear toughening effect by the zirconia on the alumina ceramics. The alumina containing 20-omega t%-yttria-stabilized tetragonal zirconia had the maximum toughness.