Preparation And Characterization Of Sol-Gel Derived Hydroxyapatite Coating On Stainless Steel Substrate

Zurianee, Lokman Loganathan (2013) Preparation And Characterization Of Sol-Gel Derived Hydroxyapatite Coating On Stainless Steel Substrate. Project Report. UTeM, Melaka, Malaysia. (Submitted)

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Abstract

The purpose of this research is to prepare and characterize the sol-gel derived hydroxyapatite coating on stainless steel subtrate. Stainless steel is being use as biomaterial due to its high mechanical strength and toughness. In order to enhance corrosion resistance of stainless steel, hydroxyapatite coating with and without presence of HCl catalyst prepared by sol-gel technique is being used as it has characteristic close to body tissue. The use of phytic acid conversion coating is also being implemented as it posses great corrosion resistivity. The coated samples analyzed by XRD shows that a weak peak of hydroxyapatite phase present in the coating. Samples observed under Optical Microscope shows that stainless steel substrate that being pre-coated with phytic acid has less corroded surface compared to other samples. Then, observation under Scanning Electron Microscope shows non-uniform coating present on the substrate. Data from EDX show that all element from hydroxyapatite present on the substrate and thus prove that hydroxyapatite coating layer manage to be form on stainless steel substrate.

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