Some specificities of the pyro- and piezoelectric phenomena in heterogeneous ferroelectric materials
| Autor: | V. I. Aleshin, A. G. Luchaninov |
|---|---|
| Rok vydání: | 2008 |
| Předmět: |
Piezoelectric coefficient
Materials science Dielectric Condensed Matter Physics Ferroelectricity Piezoelectricity Electronic Optical and Magnetic Materials Pyroelectricity Thermoelastic damping Mechanics of Materials visual_art Materials Chemistry Ceramics and Composites visual_art.visual_art_medium Ceramic Electrical and Electronic Engineering Composite material Polarization (electrochemistry) |
| Zdroj: | Journal of Electroceramics. 22:442-448 |
| ISSN: | 1573-8663 1385-3449 |
| DOI: | 10.1007/s10832-008-9490-6 |
| Popis: | A system of equations has been constructed in order to find effective pyroelectric, dielectric, piezoelectric, elastic and thermoelastic constants of heterogeneous materials using the method of self-consistency. By means of these equations the characteristics are simulated of the electrically depoled piezoceramics and of composites with antiparallel polarization of the components. Such a composite, being a mixture of BaTiO3 and PZT-19 ceramic particles, manifests at a certain concentration of PZT-19 high pyroelectric properties but does not practically possess the piezoeffect. But at another concentration it is a strong piezoelectric without any pyroeffect. |
| Databáze: | OpenAIRE |
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