Thermal stability of Ba1-xCaxF2 solid solutions |
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| Institution: | 1. Institut Pprime, UPR 3346, CNRS—University of Poitiers, SP2MI-BP 30179, 86962 Chasseneuil-Futuroscope, France;2. CSIC—University of Sevilla, Avenida Américo Vespucio, 49, 41092 Sevilla, Spain |
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| Abstract: | Ba1-xCaxF2 samples with fluorite-type structure were prepared by high-energy ball milling. DSC measurements revealed exothermic decomposition at temperatures of about 450 °C. Decomposition was also observed by high temperature X-ray experiments. As a product, two phases with compositions close to pure BaF2 and CaF2 were obtained. The decomposition temperature observed by X-ray measurements is lower than in the DSC experiments. This might indicate that X-ray irradiation could foster the decomposition. |
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| Keywords: | High-energy ball milling DSC Thermal phase stability Fluoride Solid solution |
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