Behavior of Thermally Sprayed Bioceramic Coatings after immersion in SBF: A Review
نویسندگان
چکیده
Significant research has been devoted to the development of hydroxyapatite (HA) as a coating material for metallic biomaterials used in bioimplants where the biocompatibility is provided by HA while the mechanical properties of the implant are confirmed by the metallic substrates. The in vitro tests of these coatings have conducted by soaking in simulated body fluid (SBF) solutions to evaluate the change in morphology and mechanical performance. The review shows that the mechanical properties like bond strength, wear resistance, microhardness and young’s modulus etc. of pure HA coatings found to diminish more after soaking in SBF compared to reinforced HA coatings, but it remains constant for the heat treated coatings. The dissolution of secondary phases in SBF is evident after immersion and the surfaces of composite coatings have completely covered by carbonate containing apatite which shows the good bioactivity of composite HA coatings.
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