The Effects of Oxide Layer on Co-Cr-Mo: Preliminary Study In-vitro

Mas Ayu, Hassan and S., Izman and Mohammed Rafiq, Abdul Kadir and R., Daud and Salwani, Mohd Salleh and Mohd Faiz, Mohd Yusoff and Mahmood, Anwar and G., Krishnamurithy and T., Tamarul (2015) The Effects of Oxide Layer on Co-Cr-Mo: Preliminary Study In-vitro. In: 4th International Conference on Advanced Manufacturing Technology (ICAMT 2015), 19-22 Sept 2015 , Johor Bahru. . (Unpublished)

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The effects of oxide interlayer on cobalt-chromium-molybdenum substrate were investigated in order to improve the adhesion strength of HA coating and cell responses. Substrates were oxidized at temperature range of 850°C to 1250°C. Oxidized substrates were then coated with HA slurry using dip coating technique. Analysis of surface morphology, thickness and chemical composition of oxide interlayer prior to HA coating were performed using field-emission scanning electron microscopy, energy dispersive X-ray spectroscopy and grazing X-ray diffraction respectively. It seems that rough surface of oxide interlayer provides better mechanical interlocking of HA particles to the substrate surface. In addition, the HA coated substrates with oxide interlayer also demonstrate strong attachment and proliferation of cells compared to HA coated substrates without oxide interlayer. It is concluded that the introduction of an intermediate oxide layer on Co-Cr-Mo substrate prior to HA coating has shown a positive effect in terms of increment of the adhesion strength of HA coating as well as cell bioactivity performance.

Item Type: Conference or Workshop Item (Speech)
Uncontrolled Keywords: Co-Cr-Mo alloy, thermal oxidation, hydroxyapatite, cell attachment
Subjects: T Technology > TJ Mechanical engineering and machinery
Faculty/Division: Faculty of Mechanical Engineering
Depositing User: Mrs. Neng Sury Sulaiman
Date Deposited: 05 Oct 2015 02:35
Last Modified: 31 Jan 2018 03:59
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