TRANSFORMATION AND FRACTURE OF ZRO2-BASED CERAMICS AT LOW-TEMPERATURES

Authors
YE RQ ZHAO JH ZHANG Z LI LF
Citation
Rq. Ye et al., TRANSFORMATION AND FRACTURE OF ZRO2-BASED CERAMICS AT LOW-TEMPERATURES, Materials letters, 36(1-4), 1998, pp. 29-32
Citations number
12
Categorie Soggetti
Material Science","Physics, Applied
Journal title
Materials letters → ACNP
ISSN journal
0167577X
Volume
36
Issue
1-4
Year of publication
1998
Pages
29 - 32
Database
ISI
SICI code
0167-577X(1998)36:1-4<29:TAFOZC>2.0.ZU;2-Z
Abstract
Fracture experiments were done on 3 mol% Y-TZP ceramics from room temp erature to 4.2 K. X-ray diffraction analysis was used to study the pha se contents of the ceramics. The monoclinic phase content and fracture toughness, K-Ic, all increase with decreasing temperature, which is m ainly due to the stress-induced transformation. On the other hand, the spontaneous transformation also takes a part in toughening. (C) 1998 Elsevier Science B.V. All rights reserved.