Journal
MATERIALS LETTERS
Volume 65, Issue 6, Pages 1041-1044Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.matlet.2010.11.050
Keywords
Micro-arc oxidation; Petal-like apatite; Composite materials; Surfaces
Funding
- Natural Science Foundation of Tianjin [08JCYBJC08900]
- Key Projects in the Tianjin Science & Technology Pillar Program [09ZCKFGX29100]
- National Nature Science Foundation of China [50901051]
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Petal-like apatite/titania (TiO2) coating was prepared on commercially pure titanium (Ti) by micro-arc oxidation in electrolyte containing calcium and phosphate for the first time. The surface morphology, crystalline structure, chemical composition and binding state of the apatite/TiO2 composite coating were characterized. The coating consists of a double-layer (apatite layer and TiO2 layer) structure. The average thickness of the inner TiO2 layer and the outer apatite layer is about 6 gm and 16 mu m respectively. The outer apatite layer is porous and exhibits petal-like pattern. The apatite layer consists of hydroxyapatite (HA) and carbonate-apatite and the inner TiO2 layer consists of anatase and rutile. (c) 2010 Elsevier B.V. All rights reserved.
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