Anisotropy of Thermal Expansion of Oxoborate Warwickite-Reference-Cited by-同舟云学术

Anisotropy of Thermal Expansion of Oxoborate Warwickite

Published:2023-09-01 Issue:5 Volume:49 Page:538-545
ISSN:0132-6651
Container-title:Физика и химия стекла
language:
Short-container-title:Fizika i himiâ stekla

Author:

Biryukov Ya. P.¹,Bubnova R S.¹,Filatov S. K.²

Affiliation:

1. Grebenshchikov Institute of Silicate Chemistry, Russian Academy of Sciences, 199034, St. Petersburg, Russia

2. Saint Petersburg State University

Abstract

In this paper, the transition metal oxoborate warwickite (Fe2+,Mg)Fe3+(BO3)O is studied for the first time by low- and high-temperature X-ray diffraction in the temperature range from 93 to 513 K. The sharply anisotropic nature of its thermal expansion is revealed. A structural interpretation of the expansion mechanism is given both in terms of the contribution of cationic and oxocentered polyhedra.

Publisher

The Russian Academy of Sciences

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