TITLE:
Post Heat Treatment of Plasma Sprayed Pure and Alumina-Titania Reinforced Hydroxyapatite Coating on SS 304 Steel
AUTHORS:
Gurbhinder Singh, Surendra Singh, Satya Prakash
KEYWORDS:
Hydroxyapatite, Post Heat Treatment, Amorphous Phases, Plasma Spray
JOURNAL NAME:
Journal of Minerals and Materials Characterization and Engineering,
Vol.10 No.2,
February
20,
2011
ABSTRACT: It has been reported by previous research work that in plasma spray process hydroxyapatite
decomposes into some amorphous phases due to rapid cooling of the coated substrate during the
coating process, which causes instability of coated implant. Post coating heat treatment has been
expected to minimize these phases and also enhance the long term reliability of hydroxyapatite
coatings on metal substrates. In this paper post coating heat treatment is carried out at different
temperatures suggested by the literature to study its effect on the microstructural and
mechanical properties of coating. Coated substrates were characterized by X-ray diffraction
(XRD) and SEM/EDAX analysis.