Internal stress anisotropies induced by electric field in lanthanum modified PbTiO3ceramics
- 1 November 1983
- journal article
- research article
- Published by Taylor & Francis in Ferroelectrics
- Vol. 50 (1) , 273-278
- https://doi.org/10.1080/00150198308014462
Abstract
Lanthanum modified lead titanate, (Pb0·775La0·15)TiO3 ceramics with a tetragonality of c/a = 1·024 were hot-pressed and the anisotropy of internal stress generated by applying a poling field were measured using a microindentation technique. In this specimen with a grain size of Gs=3·0 μm, the internal stresses in the directions perpendicular and parallel to the DC poling field were 151 and 35 MN/m2, respectively. The results are explained by the crack-extentional and compressive forces, respectively.Keywords
This publication has 1 reference indexed in Scilit:
- Fracture Toughness Determinations by IndentationJournal of the American Ceramic Society, 1976