Studies of the unipolarity arising in the non-poled ferroelectric ceramics with electrodes from different metals on the opposite sides

Application of electrodes from metals with different coefficients of linear thermal expansion on the opposite surfaces of non-poled plates of ferroelectric PZT-19 ceramics leads to formation of stationary gradients of mechanical strain and stresses in the samples. As a result, electric response to t...

Full description

Saved in:
Bibliographic Details
Published inFerroelectrics Vol. 525; no. 1; pp. 187 - 191
Main Authors Sakhnenko, V. P., Zakharov, Yu. N., Lutokhin, A. G., Parinov, I. A., Filatova, N. S., Raevski, I. P., Chebanenko, V. A., Rozhkov, E. V., Pavlenko, A. V., Bunin, M. A., Rodinin, E. S.
Format Journal Article
LanguageEnglish
Published Philadelphia Taylor & Francis 12.03.2018
Taylor & Francis Ltd
Subjects
Ceramics
Curie temperature
Electrodes
Ferroelectric ceramics
Ferroelectric materials
Ferroelectricity
Hysteresis loops
Lead zirconate titanates
Metals
piezoelectric response
Piezoelectricity
pyroelectric effect
Strain
Thermal expansion
unipolarity
Online AccessGet full text

Cover

More Information
Summary:Application of electrodes from metals with different coefficients of linear thermal expansion on the opposite surfaces of non-poled plates of ferroelectric PZT-19 ceramics leads to formation of stationary gradients of mechanical strain and stresses in the samples. As a result, electric response to three-point mechanical loading, pyroelectric and piezoelectric responses, asymmetry of the polarization hysteresis loop (internal electric field), as well as the nonuniform distribution of the surface potential in the interelectrode space were observed. Unipolarity did not destroy after multiple heating and cooling cycles up to 400°C, i.e. well above the Curie temperature.
ISSN:0015-0193
1563-5112
DOI:10.1080/00150193.2018.1432835