Abstract
Borates are known for low thermal expansion due to rigid behavior of BO3 and BO4 groups. Aluminoborates Al5BO9, Al4B2O9, grandidierite (Mg,Fe)Al3BSiO9 and jeremejevite Al6B5O15(F,OH)3 were investigated by temperature dependent X-ray diffraction methods. Thermal expansion of all investigated structures is mainly due to bending and stretching of M-O-M angles and unusual thermal behavior of AlO5 and MgO5 polyhedra. Anisotropic expansion of the studied structures is compared with data of structurally related compounds.
Cite
CITATION STYLE
Fisch, M., & Armbruster, T. (2012). Thermal expansion of aluminoborates. In Minerals as Advanced Materials II (Vol. 9783642200182, pp. 255–268). Springer-Verlag Berlin Heidelberg. https://doi.org/10.1007/978-3-642-20018-2_25
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