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Post Heat Treatment of Plasma Sprayed Pure and Alumina-Titania Reinforced Hydroxyapatite Coating on SS 304 Steel
Metallurgical and Materials Engineering Department, Indian Institute of Technology, Roorkee 247667, India
Metallurgical and Materials Engineering Department, Indian Institute of Technology, Roorkee 247667, India
Metallurgical and Materials Engineering Department, Indian Institute of Technology, Roorkee 247667, India
- 1 Metallurgical and Materials Engineering Department, Indian Institute of Technology, Roorkee 247667, India
- 2 Metallurgical and Materials Engineering Department, Indian Institute of Technology, Roorkee 247667, India
- 3 Metallurgical and Materials Engineering Department, Indian Institute of Technology, Roorkee 247667, India
Journal of Minerals and Materials Characterization and Engineering·Volume 10 (2011)·Pages 173–184·Published 10 February 2011·DOI10.4236/jmmce.2011.102012
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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.
KeywordsHydroxyapatitePost Heat TreatmentAmorphous PhasesPlasma Spray
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