Possibilities of the practical use of a stationary strain gradient in the interelectrode volume of unpolarized ferroceramic plates
It has been established that in plates made of hot-pressed ferroelectric ceramics PZT-19 (Tc=300∘C), after metal electrodes from Ag are burned into opposite surfaces with different depths of mechanical damage, counter-directional stationary deformation gradients and, accordingly, internal electric d...
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| Format: | Article |
| Language: | English |
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World Scientific Publishing
2020-02-01
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| Series: | Journal of Advanced Dielectrics |
| Subjects: | |
| Online Access: | http://www.worldscientific.com/doi/pdf/10.1142/S2010135X20600103 |
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| author | Yu. N. Zakharov V. P. Sakhnenko I. A. Parinov I. P. Raevsky M. A. Bunin V. A. Chebanenko M. A. Zaerko E. I. Sitalo A. A. Pavelko L. I. Kiseleva |
| author_facet | Yu. N. Zakharov V. P. Sakhnenko I. A. Parinov I. P. Raevsky M. A. Bunin V. A. Chebanenko M. A. Zaerko E. I. Sitalo A. A. Pavelko L. I. Kiseleva |
| author_sort | Yu. N. Zakharov |
| collection | DOAJ |
| description | It has been established that in plates made of hot-pressed ferroelectric ceramics PZT-19 (Tc=300∘C), after metal electrodes from Ag are burned into opposite surfaces with different depths of mechanical damage, counter-directional stationary deformation gradients and, accordingly, internal electric displacement fields create a stationary flexoelectric effect. As a result, unpolarized ceramics below the Curie temperature become a pyroelectric, and above it become a pyroelectric bolometer. After polishing the less damaged surface and replacing the Ag (valency v=3) electrode with Cr (v=6) by thermal evaporation in vacuum from the intact surface, a new thermally stable polarization is created, directed from the damaged surface in the interelectrode volume. Such plates have an asymmetric dielectric hysteresis loop, retain the values of the pyroelectric effect and piezoelectric effect in the ferroelectric phase, as well as the bolometric effect in the paraelectric phase after repeated heating cycles to 400∘C and cooling to Tnorm. |
| first_indexed | 2024-12-11T13:38:12Z |
| format | Article |
| id | doaj.art-ae86c1e42ee84705ac5c4fb0e071ce7a |
| institution | Directory Open Access Journal |
| issn | 2010-135X 2010-1368 |
| language | English |
| last_indexed | 2024-12-11T13:38:12Z |
| publishDate | 2020-02-01 |
| publisher | World Scientific Publishing |
| record_format | Article |
| series | Journal of Advanced Dielectrics |
| spelling | doaj.art-ae86c1e42ee84705ac5c4fb0e071ce7a2022-12-22T01:04:57ZengWorld Scientific PublishingJournal of Advanced Dielectrics2010-135X2010-13682020-02-011001n022060010-12060010-710.1142/S2010135X2060010310.1142/S2010135X20600103Possibilities of the practical use of a stationary strain gradient in the interelectrode volume of unpolarized ferroceramic platesYu. N. Zakharov0V. P. Sakhnenko1I. A. Parinov2I. P. Raevsky3M. A. Bunin4V. A. Chebanenko5M. A. Zaerko6E. I. Sitalo7A. A. Pavelko8L. I. Kiseleva9Research Institute of Physics and Physics Faculty, Southern Federal University, Rostov-on-Don 344090, RussiaResearch Institute of Physics and Physics Faculty, Southern Federal University, Rostov-on-Don 344090, RussiaInstitute of Mathematics, Mechanics and Computer Sciences, Southern Federal University, Rostov-on-Don 344090, RussiaResearch Institute of Physics and Physics Faculty, Southern Federal University, Rostov-on-Don 344090, RussiaResearch Institute of Physics and Physics Faculty, Southern Federal University, Rostov-on-Don 344090, RussiaFederal Research Centre The Southern Scientific, Centre of the Russian Academy of The Sciences, Rostov-on-Don 344004, RussiaResearch Institute of Physics and Physics Faculty, Southern Federal University, Rostov-on-Don 344090, RussiaResearch Institute of Physics and Physics Faculty, Southern Federal University, Rostov-on-Don 344090, RussiaResearch Institute of Physics and Physics Faculty, Southern Federal University, Rostov-on-Don 344090, RussiaFederal Research Centre The Southern Scientific, Centre of the Russian Academy of The Sciences, Rostov-on-Don 344004, RussiaIt has been established that in plates made of hot-pressed ferroelectric ceramics PZT-19 (Tc=300∘C), after metal electrodes from Ag are burned into opposite surfaces with different depths of mechanical damage, counter-directional stationary deformation gradients and, accordingly, internal electric displacement fields create a stationary flexoelectric effect. As a result, unpolarized ceramics below the Curie temperature become a pyroelectric, and above it become a pyroelectric bolometer. After polishing the less damaged surface and replacing the Ag (valency v=3) electrode with Cr (v=6) by thermal evaporation in vacuum from the intact surface, a new thermally stable polarization is created, directed from the damaged surface in the interelectrode volume. Such plates have an asymmetric dielectric hysteresis loop, retain the values of the pyroelectric effect and piezoelectric effect in the ferroelectric phase, as well as the bolometric effect in the paraelectric phase after repeated heating cycles to 400∘C and cooling to Tnorm.http://www.worldscientific.com/doi/pdf/10.1142/S2010135X20600103strain gradientunpolarized ferroceramicpyroelectric effectbolometer |
| spellingShingle | Yu. N. Zakharov V. P. Sakhnenko I. A. Parinov I. P. Raevsky M. A. Bunin V. A. Chebanenko M. A. Zaerko E. I. Sitalo A. A. Pavelko L. I. Kiseleva Possibilities of the practical use of a stationary strain gradient in the interelectrode volume of unpolarized ferroceramic plates Journal of Advanced Dielectrics strain gradient unpolarized ferroceramic pyroelectric effect bolometer |
| title | Possibilities of the practical use of a stationary strain gradient in the interelectrode volume of unpolarized ferroceramic plates |
| title_full | Possibilities of the practical use of a stationary strain gradient in the interelectrode volume of unpolarized ferroceramic plates |
| title_fullStr | Possibilities of the practical use of a stationary strain gradient in the interelectrode volume of unpolarized ferroceramic plates |
| title_full_unstemmed | Possibilities of the practical use of a stationary strain gradient in the interelectrode volume of unpolarized ferroceramic plates |
| title_short | Possibilities of the practical use of a stationary strain gradient in the interelectrode volume of unpolarized ferroceramic plates |
| title_sort | possibilities of the practical use of a stationary strain gradient in the interelectrode volume of unpolarized ferroceramic plates |
| topic | strain gradient unpolarized ferroceramic pyroelectric effect bolometer |
| url | http://www.worldscientific.com/doi/pdf/10.1142/S2010135X20600103 |
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