Abstract
The phase diagram of the binary system lead fluorapatite [Pb10(PO4)6F2] - calcium fluorapatite [Ca10(PO4)6F2] was determined over the whole composition and temperature range. Special attention was paid to the polymorphic transitions of the initial compounds and their behaviour in the investigated system. The two apatites form continuous solid solutions. Examinations were performed by means of thermal, microscopic, X-ray and dilatometric analyses.
Zusammenfassung
Im gesamten Konzentrations- und Temperaturbereich wurde das Phasendiagramm des binären Systemes Bleifluorapatit Pb10(PO4)6F2 - Calciumapatit Ca10(PO4)6F2 aufgestellt. Besonderes Augenmerk wurde polymorphen Übergängen der Ausgangsverbindungen und ihrem Verhalten im untersuchten System geschenkt. Es konnte festgestellt werden, daß beide Apatite kontinuierliche Mischkristallphasen bilden. Die Untersuchungen basieren auf Thermo-, Röntgendiffraktions-, mikroskopischer und dilatometrischer Analyse.
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The author would like to express her deep gratitude to Prof. J. Berak for his help and fruitful discussions, and Prof. T. Znamierowska for her useful suggestions.
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Podsiadlo, H. Polymorphic transitions in the binary system lead fluorapatite [Pb10(PO4)6F2] - calcium fluorapatite [Ca10(PO4)6F2]. Journal of Thermal Analysis 36, 569–575 (1990). https://doi.org/10.1007/BF01914510
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DOI: https://doi.org/10.1007/BF01914510