TY - GEN
T1 - Interface in hydroxylapatite coated Ti6Al4V alloys
AU - Ergun, Celalettin
AU - Evis, Zafer
AU - Doremus, Robert H.
PY - 2004
Y1 - 2004
N2 - 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.
AB - 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.
UR - https://www.scopus.com/pages/publications/8844230344
U2 - 10.1115/esda2004-58177
DO - 10.1115/esda2004-58177
M3 - Conference contribution
AN - SCOPUS:8844230344
SN - 0791841731
SN - 9780791841730
T3 - Proceedings of the 7th Biennial Conference on Engineering Systems Design and Analysis, ESDA 2004
SP - 305
EP - 309
BT - Proceedings of the 7th Biennial Conference on Engineering Systems Design and Analysis, ESDA 2004
PB - American Society of Mechanical Engineers
T2 - Proceedings of the 7th Biennial Conference on Engineering Systems Design and Analysis - 2004
Y2 - 19 July 2004 through 22 July 2004
ER -