The aim of the present study is to develop a better understanding of the interface reaction between hydroxylapatite and Ti6Al4V alloys. Hydroxylapatite coatings on Ti6Al4V, Hydroxylapatite-metallic titanium powder, hydroxylapatite-titania composites were prepared via air sintering and/or hot isostatic pressing (HIP). The reaction between components was monitored with EPMA line scanning technique, XRD, and thermal analysis. EPMA analysis on the interface between the hydroxylapatite and Ti6Al4V alloy showed interdiffusion profiles of all the hydroxylapatite and alloy elements suggesting interfacial bonding. The experiments on the composites showed no significant reaction between hydroxylapatite and metallic titanium in the vacuum environment. However, a reaction occurred between hydroxylapatite and titanium oxide, which formed CaTiO3 with a perovskite structure, Ca3(PO4)2 (tri-calcium phosphate; whitlockite) and water. Presence of air in the sintering environment promoted this reaction.
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ASME 7th Biennial Conference on Engineering Systems Design and Analysis
July 19–22, 2004
Manchester, England
ISBN:
0-7918-4173-1
PROCEEDINGS PAPER
Interface in Hydroxylapatite Coated Ti6Al4V Alloys
Celalettin Ergun,
Celalettin Ergun
Istanbul Technical University, Istanbul, Turkey
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Zafer Evis,
Zafer Evis
Rensselaer Polytechnic Institute, Troy, NY
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Robert H. Doremus
Robert H. Doremus
Rensselaer Polytechnic Institute, Troy, NY
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Celalettin Ergun
Istanbul Technical University, Istanbul, Turkey
Zafer Evis
Rensselaer Polytechnic Institute, Troy, NY
Robert H. Doremus
Rensselaer Polytechnic Institute, Troy, NY
Paper No:
ESDA2004-58177, pp. 305-309; 5 pages
Published Online:
November 11, 2008
Citation
Ergun, C, Evis, Z, & Doremus, RH. "Interface in Hydroxylapatite Coated Ti6Al4V Alloys." Proceedings of the ASME 7th Biennial Conference on Engineering Systems Design and Analysis. Volume 1. Manchester, England. July 19–22, 2004. pp. 305-309. ASME. https://doi.org/10.1115/ESDA2004-58177
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