Neutron Diffraction Residual Strain Measurements in Plasma Sprayed Nanostructured Hydroxyapatite Coatings for Orthopaedic Implants |
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| Journal | Materials Science Forum (Volume 652) |
|---|---|
| Volume | Mechanical Stress Evaluation by Neutrons and Synchrotron Radiation |
| Edited by | Y. Akiniwa, K. Akita and H. Suzuki |
| Pages | 309-314 |
| DOI | 10.4028/www.scientific.net/MSF.652.309 |
| Citation | R. Ahmed et al., 2010, Materials Science Forum, 652, 309 |
| Online since | May, 2010 |
| Authors | R. Ahmed, Nadimul Haque Faisal, Stefan M. Knupfer, Anna Maria Paradowska, Michael E. Fitzpatrick, K.A. Khor, Jan Cizek |
| Keywords | Hydroxyapatite Coating, Neutron Diffraction, Orthopaedic Implants, Plasma Spray, Residual Strain, Ti-6Al-4V, X-Ray Diffraction (XRD) |
| Abstract | Residual strains in plasma sprayed and heat-treated hydroxyapatite (HA) coatings deposited on a titanium alloy (Ti-6Al-4V) substrate were investigated by means of neutron diffraction. Strain measurements were performed in vertical scan (“z-scanning”) mode to provide a through thickness strain profile in the coating and substrate materials. Results are discussed in terms of the influence of heat-treatment on the residual strain profile of these biomedical coatings. This investigation concluded that the heat-treatment had a significant effect on the residual strain profile in HA coatings. |
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