Plasma sprayed hydroxyapatite applications

T., and Jennissen, H.P. (2001) Biomimetic processes during in vitro leaching of plasma-sprayed hydroxyapatite coatings for endoprosthetic applications. Materialwiss. Werkstofftech., 32, 913-921. 

In the field of metallic powder applications, a method of plasma spray coating suitable for biomedical materials has been developed using titanium and calcium phosphate composite powder. By means of the mechanical shock process, the appropriate composite powder was prepared, and plasma sprayed on Ti substrate under a low-pressure argon atmosphere. A porous Ti coating layer was obtained in which the surface and the inside of the pores were covered thinly with hydroxyapatite. This surface coating is expected to show excellent bone ingrowth and fixation with bone (21). 

Hydroxyapatite Plasma Sprayed Coatings on Ti Substrate for Biomedical Applications... 

Some examples of applications of neutron and synchrotron radiation diffraction applied to the determination of residual stresses in various industrial and technological components have been presented. The reliability of the technique has been shown, being able to determine residual stresses induced by various thermomechanical treatments, such as shrink-fit joints, welds and surface treatments in automotive and aerospace materials. It has been shown how, by this method, it is possible to determine stresses both in the coating and in the substrate of plasma-spray deposed hydroxyapatite layers on Ti alloy for biomedical applications. 

Gledhill, H.C., Turner, I.G., and Doyle, C. (1999) Direct morphological comparison of vacuum plasma sprayed and detonation gun sprayed hydroxyapatite coatings for orthopaedic applications. Biomaterials, 20 (4), 315-322. 

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