Effect of poling direction on R-curve behavior in lead zirconate titanate

Authors
Lucato, SLDE Lupascu, DC Rodel, J
Citation
Slde. Lucato et al., Effect of poling direction on R-curve behavior in lead zirconate titanate, J AM CERAM, 83(2), 2000, pp. 424-426
Citations number
14
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
2
Year of publication
2000
Pages
424 - 426
Database
ISI
SICI code
0002-7820(200002)83:2<424:EOPDOR>2.0.ZU;2-E
Abstract
R-curves of lead zirconate titanate (PZT) have been measured with compact t ension (CT) specimens for different poling conditions and grain sizes. Depe nding on poling direction the plateau value of the R-curves ranged from 1.1 3 to 1.54 MPa.m(1/2) for a grain size of 6.4 mu m and from 1.14 to 1.30 MPa .m(1/2) for a grain size of 5.2 mu m. Poling in the thickness direction yie lded the material with the highest fracture toughness while the direction p arallel to the loading direction led to the lowest fracture toughness.