Characterization Of Hydroxyapatite Coating Deposited On Glass, Stainless Steel And Titanium Alloy Substrate Via Sol-Gel Technique

Saidah, Mohamad Aminallah (2013) Characterization Of Hydroxyapatite Coating Deposited On Glass, Stainless Steel And Titanium Alloy Substrate Via Sol-Gel Technique. Project Report. UTeM, Melaka, Malaysia. (Submitted)

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Abstract

Nowadays, the metallic biomaterials for instance the stainless steel and titanium alloys are used as the implant materials. However, the oscillatory micromovements at the interface between the implant and the bone exhibit the fretting wear. Besides, the metal ion of the implants is being released to the vivo in the healing process due to the corrosion phenomenon. Apart of that, the hydroxyapatite (HA) coating is utilizing to the implant materials in order to reduce the difficulty and to increase the growth rate of tissue. On the contrary, HA have the ability to bond directly to the bone and reduce the healing time. In this study, the characterization of the HA coating on the stainless steel and titanium is done as well as to the glass substrate for the testing of the coating. The substrate is dried at the 1000C and heat treatment at the 4000C to obtain the apatite layer of the coating. The analysis of XRD and EDX shows the intensity of the HA phase and the emerging of the element of calcium and phosphorus respectively. The SEM results shows the surface morphology obtained that the HA coating sustain the non homogeneity due to the surface roughness and the thickness of the coating. The thickness of the one layer of the HA coating is in the average of the 1.5μm. As expected, the thickness gained for the average is in the range of 1μm.

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