Paper Title:

Neutron Diffraction Residual Strain Measurements in Plasma Sprayed Nanostructured Hydroxyapatite Coatings for Orthopaedic Implants

Periodical Materials Science Forum (Volume 652)
Main Theme 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)
Price US$ 28,-
Article Preview
View full size
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.