TRANSFORMATION DRIVING-FORCE FOR INDENTATION CRACKING IN ZIRCONIA CERAMICS

Authors
LIANG K GU KF
Citation
K. Liang et Kf. Gu, TRANSFORMATION DRIVING-FORCE FOR INDENTATION CRACKING IN ZIRCONIA CERAMICS, Journal of the American Ceramic Society, 76(12), 1993, pp. 3144-3146
Citations number
8
Categorie Soggetti
Material Science, Ceramics
Journal title
Journal of the American Ceramic Society → ACNP
ISSN journal
00027820
Volume
76
Issue
12
Year of publication
1993
Pages
3144 - 3146
Database
ISI
SICI code
0002-7820(1993)76:12<3144:TDFICI>2.0.ZU;2-9
Abstract
The transformation driving force for indentation cracking in phase-tra nsformation-toughened ZrO2 ceramics is confirmed with the direct crack measurement method. This driving force is produced by expansion of th e plastic zone beneath the indenter due to stress-induced transformati on, and it promotes the extension of the indentation cracks. The drivi ng force cannot be neglected when evaluating the indentation fracture toughness of the materials.