Abstract
This paper describes the synthesis of some apatite compounds, called britholites, by an aerosol pyrolysis technique, which compared to conventional methods of solid-state chemistry, presents the advantages of reducing noticeably the temperature and the duration of the treatment. Britholites are minerals based on Ca10 − x Ln x (PO4)6 − x (SiO4) x X 2 formula (with X = F−, OH−, X 2 = O2−); they are promising materials for nuclear waste storage. In a second part we have synthesized and characterized a new apatite phase where the substitution of calcium by barium in britholite leads to a monophased solid solution Ca9 − x Ba x Nd(PO4)6 − x (SiO4)F2 for 6 < x < 9. The possible interest of this new material is discussed.
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Veilleux, D., Barthelemy, N., Trombe, JC. et al. Synthesis of new apatite phases by spray pyrolysis and their characterization. Journal of Materials Science 36, 2245–2252 (2001). https://doi.org/10.1023/A:1017508520126
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DOI: https://doi.org/10.1023/A:1017508520126