The effect of electric field on mechanical strain and stress in flawed electroceramics
- 1 November 1988
- journal article
- research article
- Published by Taylor & Francis in Ferroelectrics
- Vol. 87 (1) , 81-84
- https://doi.org/10.1080/00150198808201371
Abstract
Electrically-induced strains and stresses in ceramic transducers and capacitors play an important role in the degradation and breakdown of these components. A computer program based on a finite difference numerical technique was used to model the electric potential and electric field near internal flaws in the ceramic.1 Using the piezoelectric and electrostrictive moduli of Pb(Zr, Ti)O3 and BaTiO3, maximum strains and stresses near cracks, delaminations, and voids were evaluated.2 Predictions are made concerning the nature of field-induced cracks emanating from macrodefects.Keywords
This publication has 1 reference indexed in Scilit:
- Bestimmung der ElektrostriktionskonstantenQ 11 von BariumtitanatkeramikThe European Physical Journal A, 1956