Abstract
Compounds with the general formula CaLn4(SiO4)3O (Ln = Pr, Sm, Eu), belonging to the apatite class, have been prepared by solid-state reactions and have been studied at high temperatures by high-temperature X-ray diffraction and differential scanning calorimetry. The results demonstrate that the volume expansivity of these apatites and its temperature coefficient are determined by the ionic radius of the lanthanides.
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Original Russian Text © A.V. Knyazev, E.N. Bulanov, A.O. Korshunov, O.V. Krasheninnikova, 2013, published in Neorganicheskie Materialy, 2013, Vol. 49, No. 11, pp. 1222–1227.
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Knyazev, A.V., Bulanov, E.N., Korshunov, A.O. et al. Synthesis and thermal expansion of some lanthanide-containing apatites. Inorg Mater 49, 1133–1137 (2013). https://doi.org/10.1134/S0020168513110095
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DOI: https://doi.org/10.1134/S0020168513110095