Electret properties of Ca₅Nb₄TiO₁₇ with five-layered perovskite-like structure
It is found that ceramic thermoelectret based on Ca₅Nb₄TiO₁₇ with five-layered slab perovskite-like structure is characterized by high values of potential external electric field VS which demonstrates enchanced stability in time both under normal and high humidity conditions. In particular, the init...
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| Published in: | Functional Materials |
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| Date: | 2017 |
| Main Authors: | , , , , , |
| Format: | Article |
| Language: | English |
| Published: |
НТК «Інститут монокристалів» НАН України
2017
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| Subjects: | |
| Online Access: | https://nasplib.isofts.kiev.ua/handle/123456789/136857 |
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| Journal Title: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Cite this: | Electret properties of Ca₅Nb₄TiO₁₇ with five-layered perovskite-like structure / Y.O. Titov, M.S. Slobodyanik, N.M. Belyavina, O.I. Nakonechna, V.V. Chumak, R.M. Kuzmin // Functional Materials. — 2017. — Т. 24, № 4. — С. 559-562. — Бібліогр.: 9 назв. — англ. |
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Digital Library of Periodicals of National Academy of Sciences of Ukraine| Summary: | It is found that ceramic thermoelectret based on Ca₅Nb₄TiO₁₇ with five-layered slab perovskite-like structure is characterized by high values of potential external electric field VS which demonstrates enchanced stability in time both under normal and high humidity conditions. In particular, the initial value VSo of the surface potential for Ca₅Nb₄TiO₁₇ polarized ceramics (Fpol. = 15 kV/cm, Tpol. = 493 K, τpol. = 2 h) is equal to 480 V, the decreasing of VS/VSo under normal conditions does not exceed 20 % for 316 days and under 100 % of humidity reaches 73 % for 7 days.
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| ISSN: | 1027-5495 |