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Characterization of Plasma Sprayed Hydroxyapatite Coatings on AISI 316L SS and Titanium Substrate and their Corrosion Behavior in Simulated Body Fluid
Metallurgical and Materials Engineering Department,Indian Institute of Technology Roorkee, Civil lines, Roorkee-247667, India
Metallurgical and Materials Engineering Department,Indian Institute of Technology Roorkee, Civil lines, Roorkee-247667, India
Metallurgical and Materials Engineering Department,Indian Institute of Technology Roorkee, Civil lines, Roorkee-247667, India
- 1 Metallurgical and Materials Engineering Department,Indian Institute of Technology Roorkee, Civil lines, Roorkee-247667, India
- 2 Metallurgical and Materials Engineering Department,Indian Institute of Technology Roorkee, Civil lines, Roorkee-247667, India
- 3 Metallurgical and Materials Engineering Department,Indian Institute of Technology Roorkee, Civil lines, Roorkee-247667, India
Journal of Minerals and Materials Characterization and Engineering·Volume 10 (2011)·Pages 1041–1049·Published 12 September 2011·DOI10.4236/jmmce.2011.1011079
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Abstract
In order to increase the bone bioactivity of metallic implants, hydroxyapatite (HA: Ca 10 (PO 4 ) 2 (OH) 6 ) is often coated on their surface so that real bond with surrounding bone tissue can be formed. In present study, HA coatings were deposited on AISI 316L SS and titanium using shrouded plasma spray process. The coated specimens were subjected to X-ray diffraction (XRD) analysis, field emission scanning electron microscopy (FE-SEM/EDAX). The polarization studies in simulated body fluid (SBF) were conducted to evaluate the corrosion resistance of bare and coated specimens. It was found that the hydroxyapatite coating provided excellent corrosion resistance. The resistance to corrosion was found independent on substrates
KeywordsCorrosionPolarizationHydroxyapatite.
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