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The effect of crystal polymorphism of ferroelectric copolymer vinylidene fluoride-hexafluoropropylene on its high-voltage polarizationстатья
Информация о цитировании статьи получена из
Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 12 августа 2020 г.
- Авторы: Kochervinskii Valentin V., Malyshkina Inna A., Kiselev Dmitry A., Ilina Tatiana S., Kozlova Nina V., Shmakova Nina A., Korlyukov Alexander A., Gradova Margaret A., Bedin Sergey A.
- Журнал: Journal of Applied Polymer Science
- Том: 137
- Номер: 41
- Год издания: 2020
- Издательство: John Wiley & Sons Inc.
- Местоположение издательства: United States
- Первая страница: 1
- Последняя страница: 14
- Номер статьи: 49235
- DOI: 10.1002/app.49235
- Аннотация: Dielectric response of vinylidene fluoride-hexafluoropropylene copolymer, crystallized in different polymorph modifications, to a high-voltage electric field was studied. Polarization switching at high electric fields below coercivewas detected. It was found that crystallization of the copolymer predominantly in nonpolar α-phase is accompanied by more intensive growth of electric displacement at polarization. For the sample with higher content of polar γ-phase, the value of high-voltage conductivity “anomalously” decreased with increasing field at fields above coercive. The data on the field dependences of the remnant polarization showed that this should be attributed to an increase of the effective capture cross section of deep traps of γ-phase polar planes forimpurity and injected carriers. X-ray diffraction as revealed the field-induced transition of a part of the chains of the amorphous phase to the crystal.
- Добавил в систему: Малышкина Инна Александровна