Author:
Leventouri Th.,Chakoumakos B. C.,Moghaddam H. Y.,Perdikatsis V.
Abstract
Atomic positional disorder of a single-phase natural carbonate fluorapatite (francolite) is revealed from analysis of the atomic displacement parameters (ADPs) refined from neutron powder diffraction data as a function of temperature and carbonate content. The ADPs of the francolite show a strong disturbance at the P, O3, and F sites. When it is heat treated to partially or completely remove the carbonate, the ADPs as well as the other structural parameters resemble those of a fluorapatite (Harding pegmatite) that was measured under the same conditions. The various structural changes are consistent with a substitution mechanism whereby the planar carbonate group replaces a phosphate group and lies on the mirror plane of the apatite structure.
Publisher
Springer Science and Business Media LLC
Subject
Mechanical Engineering,Mechanics of Materials,Condensed Matter Physics,General Materials Science
Reference27 articles.
1. 27. Singlecrystal neutron diffraction study, Chakoumakos B.C. (unpublished).
2. 25. Larson A.C. and Von Dreele R.B. , Los Alamos National Laboratory Report (1986), LAUR 86–748, version MS-DOS 7/15/99.
3. Structural disorder in hydroxyapatite
Cited by
35 articles.
订阅此论文施引文献
订阅此论文施引文献，注册后可以免费订阅5篇论文的施引文献，订阅后可以查看论文全部施引文献