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

被引：10

作者：

Ahmed, R. ^{[1
]}

Faisal, N. H. ^{[1
]}

Knupfer, S. M. ^{[1
]}

Paradowska, A. M. ^{[2
]}

Fitzpatrick, M. E. ^{[3
]}

Khor, K. A. ^{[4
]}

Cizek, J. ^{[4
]}

机构：

[1] Heriot Watt Univ, Sch Engn & Phys Sci, Edinburgh EH14 4A5, Midlothian, Scotland

[2] ISIS, Rutherford Appleton Lab, Didcot OX11 0QX, Oxon, England

[3] Open Univ, Mat Engn, Milton Keynes MK7 6AA, Bucks, England

[4] Nanyang Technol Univ, Sch Mech & Prod Engn, Singapore 639798, Singapore

来源：

MECHANICAL STRESS EVALUATION BY NEUTRONS AND SYNCHROTRON RADIATION | 2010年 / 652卷

关键词：

Hydroxyapatite coatings; Ti-6Al-4V; Plasma spray; Neutron diffraction; X-ray diffraction; Residual strain; Orthopaedic implants; CERMET COATINGS;

D O I：

10.4028/www.scientific.net/MSF.652.309

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

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.

引用

页码：309 / +

页数：2

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