Liquid-Phase Synthesis and Investigation of Powders Based on Zirconium Dioxide
- Авторы: Kovalko N.1, Dolgin A.1,2, Efimova L.1, Arsent’ev M.1, Shilova O.1,2,3
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Учреждения:
- Grebenshchikov Institute of Silicate Chemistry, Russian Academy of Sciences
- St. Petersburg State Institute of Technology
- St. Petersburg State Electrotechnical University
- Выпуск: Том 44, № 6 (2018)
- Страницы: 626-631
- Раздел: Article
- URL: https://journals.rcsi.science/1087-6596/article/view/216948
- DOI: https://doi.org/10.1134/S1087659618060111
- ID: 216948
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Аннотация
Xerogels in the ZrO2(Y2O3)–Al2O3 system are obtained by the coprecipitation method followed by a low-temperature treatment at –25°C for 24 h. The physicochemical properties of the powders of ZrO2(Y2O3)–xAl2O3 (х = 15, 20, and 25 mol %) compositions obtained by burning the xerogels are studied. It is shown that the introduction of 25 mol % of Al2O3 promotes the deceleration of the growth of the particles of the t-ZrO2(Y2O3) tetragonal solid solution. It is established that the obtained powders are characterized by high values of the degree of tetragonality (c/a = 1.438–1.436).
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Об авторах
N. Kovalko
Grebenshchikov Institute of Silicate Chemistry, Russian Academy of Sciences
Автор, ответственный за переписку.
Email: kovalko.n.yu@gmail.com
Россия, St. Petersburg, 199034
A. Dolgin
Grebenshchikov Institute of Silicate Chemistry, Russian Academy of Sciences; St. Petersburg State Institute of Technology
Email: kovalko.n.yu@gmail.com
Россия, St. Petersburg, 199034; St. Petersburg, 190013
L. Efimova
Grebenshchikov Institute of Silicate Chemistry, Russian Academy of Sciences
Email: kovalko.n.yu@gmail.com
Россия, St. Petersburg, 199034
M. Arsent’ev
Grebenshchikov Institute of Silicate Chemistry, Russian Academy of Sciences
Email: kovalko.n.yu@gmail.com
Россия, St. Petersburg, 199034
O. Shilova
Grebenshchikov Institute of Silicate Chemistry, Russian Academy of Sciences; St. Petersburg State Institute of Technology; St. Petersburg State Electrotechnical University
Email: kovalko.n.yu@gmail.com
Россия, St. Petersburg, 199034; St. Petersburg, 190013; St. Petersburg, 197376