Synthetic lead bromapatite: X-ray structure at ambient pressure and compressibility up to about 20 GPa

Autor:	Michael E. Fleet, Qiang He, Sean R. Shieh, Xi Liu
Rok vydání:	2010
Předmět:	Yield (engineering) Chemistry Fluorapatite Analytical chemistry Crystal structure Hydroxylapatite Apatite chemistry.chemical_compound Crystallography Geochemistry and Petrology visual_art X-ray crystallography Compressibility visual_art.visual_art_medium General Materials Science Ambient pressure
Zdroj:	Physics and Chemistry of Minerals. 38:397-406
ISSN:	1432-2021 0342-1791
Popis:	Lead bromapatite [Pb10(PO4)6Br2] has been synthesized via solid-state reaction at pressures up to 1.0 GPa, and its structure determined by single-crystal X-ray diffraction at ambient temperature and pressure. The large bromide anion is accommodated in the c-axis channel by lateral displacements of structural elements, particularly of Pb2 cations and PO4 tetrahedra. The compressibility of bromapatite was also investigated up to about 20.7 GPa at ambient temperature, using a diamond-anvil cell and synchrotron X-ray radiation. The compressibility of lead bromapatite is significantly different from that of lead fluorapatite. The pressure–volume data of lead bromapatite (P
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::e389fe15bbcfba3c43fee388a6859c7d https://doi.org/10.1007/s00269-010-0413-0 Zobrazit plný text záznamu Full text from SpringerLink