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The evaluation of hydroxyapatite (HA) coated and uncoated porous tantalum for biomedical material applications

Safuan, Nadia and Sukmana, Irza and Abdul Kadir, Mohammed Rafiq and Noviana, Deni (2015) The evaluation of hydroxyapatite (HA) coated and uncoated porous tantalum for biomedical material applications. In: International Conference on Science and Engineering in Mathematics, Chemistry and Physics (ScieTech), 13-14 Jan, 2014, Indonesia.

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Official URL: http://dx.doi.org/10.1088/1742-6596/495/1/012023


Porous tantalum has been used as an orthopedic implant for bone defects as it has a good corrosion resistance and fatigue behaviour properties. However, there are some reports on the rejection of porous Ta after the implantation. Those clinical cases refer to the less bioactivity of metallic-based materials. This study aims to evaluate hydroxyapatite coated and uncoated porous Tantalum in order to improve the biocompatibility of porous tantalum implant and osseointegration. Porous tantalum was used as metallic-base substrate and hydroxyapatite coating has been done using plasma-spraying technique. Scanning Electron Microscopy (SEM) and Field Emission Scanning Electron Microscopy (FESEM) techniques were utilizes to investigate the coating characteristics while Confocal Raman Microscopy to investigate the interface and image. The effect of coating to the corrosion behaviour was assessed by employing potentiodynamic polarization tests in simulated body fluid at 37 +/- 1 degrees C. Based on SEM and FESEM results, the morphologies as well the weight element consists in the uncoated and hydroxyapatite coated porous tantalum were revealed. The results indicated that the decrease in corrosion current density for HA coated porous Ta compared to the uncoated porous Ta. This study concluded that by coating porous tantalum with HA supports to decrease the corrosion rate of pure porous.

Item Type:Conference or Workshop Item (Paper)
Uncontrolled Keywords:biomaterials, corrosion
Subjects:R Medicine > R Medicine (General)
Divisions:Biosciences and Medical Engineering
ID Code:68559
Deposited By: Fazli Masari
Deposited On:08 Oct 2017 03:26
Last Modified:08 Oct 2017 03:26

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