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Phase Contamination Characterization of Stepwise-built Functionally Graded Hydroxyapatite/Titanium (HA/Ti) Sintered under Various Atmospheres

Siti Nur Sakinah, Jamaludin and Shahnor, Basri and Faizal, Mustapha and Nuruzzaman, D. M. and Muhammad Ihsan, Abdul Latiff and Noor Mazni, Ismail (2017) Phase Contamination Characterization of Stepwise-built Functionally Graded Hydroxyapatite/Titanium (HA/Ti) Sintered under Various Atmospheres. In: 5th International Conference on Engineering and Innovative Materials, ICEIM 2016, 10 - 12 September 2016 , Kuala Lumpur, Malaysia. pp. 90-96., 889. ISSN 0255-5476

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Abstract

Fourier Transform Infrared Spectroscopy (FTIR) and X-Ray Diffraction (XRD) test were utilized to detect the phase transformation of a HA/Ti Functionally Graded Material (FGM) prepared via Powder Metallurgy (PM) technique. The effects of oxygen (O2), nitrogen (N2), forming (N2+H2) and Argon (Ar) sintering atmospheres on the FGM specimens were examined by considering the gas flowing duration. It was found that the original metallurgical profile of pure Ti in HA/Ti FGM sintered under N2 atmosphere was almost preserved. However the carburization of the pure Ti was observed on the specimen. Medium alkyl halides (C-Br) and alkenes (-C=C-) stretches were detected, producing the dominant elements in the pure Ti layer of the specimen. The almost stable constituent element remains in the specimen sintered under flowing N2+H2 atmosphere as detected by XRD result. This proved the significance of controlling the sintering atmosphere during the entire sintering process. The results achieved reveal the high tendency of Ti and HA elements to react with the sintering environment, thus very precise furnace with controllable atmosphere is crucial for the fabrication of the HA/Ti FGM.

Item Type: Conference or Workshop Item (Speech)
Additional Information: Indexed by Scopus
Uncontrolled Keywords: Phase contamination; FTIR; XRD; HA/Ti FGM; Sintering atmosphere
Subjects: T Technology > TJ Mechanical engineering and machinery
Faculty/Division: Faculty of Manufacturing Engineering
Depositing User: PM Dr. Dewan Muhammad Nuruzzaman
Date Deposited: 09 Feb 2018 06:14
Last Modified: 09 Feb 2018 06:27
URI: http://umpir.ump.edu.my/id/eprint/19760
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