THE BRITTLE DUCTILE TRANSITION IN CUBIC STABILIZED ZIRCONIA/

Authors
MARROW TJ ROBERTS SG PEARCEHIGGINS AK
Citation
Tj. Marrow et al., THE BRITTLE DUCTILE TRANSITION IN CUBIC STABILIZED ZIRCONIA/, Journal of the European Ceramic Society, 14(5), 1994, pp. 447-453
Citations number
29
Categorie Soggetti
Material Science, Ceramics
Journal title
Journal of the European Ceramic Society → ACNP
ISSN journal
09552219
Volume
14
Issue
5
Year of publication
1994
Pages
447 - 453
Database
ISI
SICI code
0955-2219(1994)14:5<447:TBDTIC>2.0.ZU;2-V
Abstract
Cubic zirconia has a smooth brittle/ductile transition above 800 degre es C at a loading rate of 1.2 x 10(-4) MPa root m s(-1). PI e-stressin g at 950 degrees C increases the room temperature fracture toughness i n a controllable manner. The toughness increase is caused by dislocati on shielding of the crack tip and may be predicted using a model for d islocation generation by crack tip dislocation sources.