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Evolution of the calcium hydroxyapatite crystal structure under plasma deposition and subsequent reducing treatment

Evolution of the calcium hydroxyapatite crystal structure under plasma deposition and subsequent... Abstract The structure of hydroxyapatite plasma coatings on a titanium substrate has been investigated by the X-ray Rietveld method. The hydroxyapatite crystal structure in plasma-deposited samples is characterized by strong distortions of its main element (tetrahedral PO4 cluster) and coordination calcium polyhedra, as well as calcium deficit in the Ca2 site; however, these features do not change the main motif of the hydroxyapatite structure. The bond distortions in PO4 clusters are estimated by the Bauer method. It is shown that hydrothermal treatment leads to the almost complete recovery of the hydroxyapatite structure. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Crystallography Reports Springer Journals

Evolution of the calcium hydroxyapatite crystal structure under plasma deposition and subsequent reducing treatment

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References (10)

Publisher
Springer Journals
Copyright
2014 Pleiades Publishing, Inc.
ISSN
1063-7745
eISSN
1562-689X
DOI
10.1134/s1063774514020205
Publisher site
See Article on Publisher Site

Abstract

Abstract The structure of hydroxyapatite plasma coatings on a titanium substrate has been investigated by the X-ray Rietveld method. The hydroxyapatite crystal structure in plasma-deposited samples is characterized by strong distortions of its main element (tetrahedral PO4 cluster) and coordination calcium polyhedra, as well as calcium deficit in the Ca2 site; however, these features do not change the main motif of the hydroxyapatite structure. The bond distortions in PO4 clusters are estimated by the Bauer method. It is shown that hydrothermal treatment leads to the almost complete recovery of the hydroxyapatite structure.

Journal

Crystallography ReportsSpringer Journals

Published: Mar 1, 2014

Keywords: Crystallography and Scattering Methods

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