Nonstoichiometry in calcium chlorapatite

Some properties dependent on deviations from ideal stoichiometry in Ca 10(PO 4) 6Cl 2 have been studied. By vacuum annealing chlorapatite, up to 23% of the CaCl 2 content can be lost without the appearance of a second phase. Measurements of lattice constants and density indicate the formation of Ca...

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Bibliographic Details
Published in:Journal of solid state chemistry 1971-01, Vol.3 (1), p.49-55
Main Author: Prener, J.S.
Format: Article
Language:English
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Summary:Some properties dependent on deviations from ideal stoichiometry in Ca 10(PO 4) 6Cl 2 have been studied. By vacuum annealing chlorapatite, up to 23% of the CaCl 2 content can be lost without the appearance of a second phase. Measurements of lattice constants and density indicate the formation of Ca and Cl vacancies. Changes in the optical properties, color centers, and structure have been observed upon loss of CaCl 2.
ISSN:0022-4596
1095-726X
DOI:10.1016/0022-4596(71)90006-5