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Microstructure and Phase Composition of Yttria-Stabilized Zirconia Nanofibers Prepared by High-Temperature Calcination of Electrospun Zirconium Acetylacetonate/Yttrium Nitrate/Polyacrylonitrile Fibersстатья
Информация о цитировании статьи получена из
Web of Science,
Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 24 января 2020 г.
- Авторы: Rodaev Vyacheslav V., Razlivalova Svetlana S., Tyurin Alexander I., Zhigachev Andrey O., Golovin Yuri I.
- Журнал: Fibers
- Том: 7
- Номер: 10
- Год издания: 2019
- Первая страница: 82
- DOI: 10.3390/fib7100082
- Аннотация: For the first time, dense nanofibers of yttria-stabilized tetragonal zirconia with diameter of ca. 140 nm were prepared by calcination of electrospun zirconium acetylacetonate/yttrium nitrate/polyacrylonitrile fibers at 1100-1300 °C. Ceramic filaments were characterized by scanning electron microscopy, X-ray diffractometry, and nitrogen adsorption. With a rise in the calcination temperature from1100 to 1300 °C, the fine-grain structure of the nanofibers transformed to coarse-grain ones with the grain size equal to the fiber diameter. It was revealed that fully tetragonal nanofibrous zirconia may be obtained at Y2O3 concentrations in the range of 2-3 mol% at all used calcination temperatures. The addition of 2-3 mol% yttria to zirconia inhibited ZrO2 grain growth, preventing nanofibers' destruction at high calcination temperatures. Synthesized well-sintered, non-porous, yttria-stabilized tetragonal zirconia nanofibers can be considered as a promising material for composites' reinforcement, including composites with ceramic matrix. © 2019 by the authors.
- Добавил в систему: Головин Юрий Иванович