R-curve for a lead zirconate titanate ceramic obtained from tensile strength tests with Knoop-damaged specimens

Authors
Fett, T Munz, D
Citation
T. Fett et D. Munz, R-curve for a lead zirconate titanate ceramic obtained from tensile strength tests with Knoop-damaged specimens, J AM CERAM, 83(12), 2000, pp. 3199-3201
Citations number
6
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science","Material Science & Engineering
Journal title
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
ISSN journal
00027820 → ACNP
Volume
83
Issue
12
Year of publication
2000
Pages
3199 - 3201
Database
ISI
SICI code
0002-7820(200012)83:12<3199:RFALZT>2.0.ZU;2-#
Abstract
A procedure was used that made it possible to determine the R-curve for pie zoelectric ceramics from tensile strength tests conducted with Knoop-damage d specimens. The resulting crack-tip toughness K-10 was 0.6 MPa .m(1/2), an d the R-curve starting from this value increased to 1.4 MPa .m(1/2) within a 0.7 mm crack extension.