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Morphotropism of Rare-Earth Orthoborates RBO3


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Abstract

A diagram in the coordinates “temperature-ionic radius” is built for polymorphic and morphotropic transitions in a series of REE orthoborates. The stability fields are determined for the structural types of calcite, aragonite, vaterite, pseudo-vaterite, H-LaBO3, and L-SmBO3. The temperatures of some metastable phase transformations are estimated.

About the authors

P. P. Fedorov

Prokhorov General Physics Institute

Author for correspondence.
Email: ppfedorov@yandex.ru
Russian Federation, Moscow

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