Infinite anisotropy of the piezoeffect in PbTiO3-based ferroceramic

Authors
Dul'kin, EA Grebenkina, LI Makar'ev, DI Klevtsov, AN Gavrilyachenko, VG
Citation
Ea. Dul'Kin et al., Infinite anisotropy of the piezoeffect in PbTiO3-based ferroceramic, TECH PHYS L, 25(11), 1999, pp. 894-895
Citations number
9
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
TECHNICAL PHYSICS LETTERS
ISSN journal
10637850 → ACNP
Volume
25
Issue
11
Year of publication
1999
Pages
894 - 895
Database
ISI
SICI code
1063-7850(199911)25:11<894:IAOTPI>2.0.ZU;2-P
Abstract
Acoustic emission, dilatometry, and optical microscopy were used to study t he polarization of PKR-70 PbTiO3 ferroceramic samples. It was established t hat in an electric field higher than 2.5 kV/mm the piezoeffect in the sampl es acquires an infinite anisotropy, accompanied by acoustic-emission and di latometric anomalies. It is shown that this anisotropy of the piezoeffect i s caused by microcracking of the samples in the direction of the polarizing field. (C) 1999 American Institute of Physics. [S1063-7850(99)01911-4].