Thermal Expansion of Mg3B2O6 Borate
- Authors: Firsova V.A.1, Shablinskii A.P.1, Ershov D.S.1, Bubnova R.S.1
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Affiliations:
- Grebenshchikov Institute of Silicate Chemistry, Russian Academy of Sciences
- Issue: Vol 45, No 4 (2019)
- Pages: 302-304
- Section: Short Communications
- URL: https://journals.rcsi.science/1087-6596/article/view/217241
- DOI: https://doi.org/10.1134/S1087659619040047
- ID: 217241
Cite item
Abstract
The thermal expansion of magnesium borate (Mg3B2O6) is studied by the method of X-ray thermodiffraction in the temperature range 25–1100°C. The coefficients of thermal expansion are calculated as follows: αa = 13.0(5), αb = 8.5(5), αc = 8.0(5), αV = 30(1) × 10–6°С−1 at 25°C; and αa = 20.0(5), αb = 13.0(5), αc = 13.0(5), αV = 46(1) × 10–6°С−1 at 1100°С. The direction of the maximal thermal expansion (αa) is perpendicular to the preferred orientation of the BO3 triangles.
About the authors
V. A. Firsova
Grebenshchikov Institute of Silicate Chemistry, Russian Academy of Sciences
Email: rimma_bubnova@mail.ru
Russian Federation, St. Petersburg, 199034
A. P. Shablinskii
Grebenshchikov Institute of Silicate Chemistry, Russian Academy of Sciences
Email: rimma_bubnova@mail.ru
Russian Federation, St. Petersburg, 199034
D. S. Ershov
Grebenshchikov Institute of Silicate Chemistry, Russian Academy of Sciences
Email: rimma_bubnova@mail.ru
Russian Federation, St. Petersburg, 199034
R. S. Bubnova
Grebenshchikov Institute of Silicate Chemistry, Russian Academy of Sciences
Author for correspondence.
Email: rimma_bubnova@mail.ru
Russian Federation, St. Petersburg, 199034