Liquid-Phase Synthesis and Investigation of Powders Based on Zirconium Dioxide
- Authors: Kovalko N.Y.1, Dolgin A.S.1,2, Efimova L.N.1, Arsent’ev M.Y.1, Shilova O.A.1,2,3
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Affiliations:
- Grebenshchikov Institute of Silicate Chemistry, Russian Academy of Sciences
- St. Petersburg State Institute of Technology
- St. Petersburg State Electrotechnical University
- Issue: Vol 44, No 6 (2018)
- Pages: 626-631
- Section: Article
- URL: https://journals.rcsi.science/1087-6596/article/view/216948
- DOI: https://doi.org/10.1134/S1087659618060111
- ID: 216948
Cite item
Abstract
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).
About the authors
N. Yu. Kovalko
Grebenshchikov Institute of Silicate Chemistry, Russian Academy of Sciences
Author for correspondence.
Email: kovalko.n.yu@gmail.com
Russian Federation, St. Petersburg, 199034
A. S. Dolgin
Grebenshchikov Institute of Silicate Chemistry, Russian Academy of Sciences; St. Petersburg State Institute of Technology
Email: kovalko.n.yu@gmail.com
Russian Federation, St. Petersburg, 199034; St. Petersburg, 190013
L. N. Efimova
Grebenshchikov Institute of Silicate Chemistry, Russian Academy of Sciences
Email: kovalko.n.yu@gmail.com
Russian Federation, St. Petersburg, 199034
M. Yu. Arsent’ev
Grebenshchikov Institute of Silicate Chemistry, Russian Academy of Sciences
Email: kovalko.n.yu@gmail.com
Russian Federation, St. Petersburg, 199034
O. A. 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
Russian Federation, St. Petersburg, 199034; St. Petersburg, 190013; St. Petersburg, 197376