Characterization Hydroxyapatite/Ti6Al4V Of Composite Powder Under Various Sintering Temperature

Arifin, Amir and Sulong, Abu Bakar and Muhamad, Norhamidi and Junaidi, Syarif (2014) Characterization Hydroxyapatite/Ti6Al4V Of Composite Powder Under Various Sintering Temperature. Jurnal Teknologi, 75 (7). pp. 27-31. ISSN 0127-9696

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    Hydroxyapatite (HA) has been widely used in biomedical applications due to its excellent biocompatibility. However, Hydroxyapatite possesses poor mechanical properties and only tolerate limited loads for implants. Titanium is well-known materials applied in implant that has advantage in mechanical properties but poor in biocompatibility. The combination of the Titanium alloy and HA is expected to produce bio-implants with good in term of mechanical properties and biocompatabilty. In this work, interaction and mechanical properties of HA/Ti6Al4V was analyzed. The physical and mechanical properties of HA/Ti6Al4V composite powder obtained from compaction (powder metallurgy) of 60 wt.% Ti6Al4V and 40 wt.% HA and sintering at different temperatures in air were investigated in this study. Interactions of the mixed powders were investigated using X-ray diffraction. The hardness and density of the HA/Ti6Al4V composites were also measured. Based on the results of XRD analysis, the oxidation of Ti began at 700 °C. At 1000 °C, two phases were formed (i.e., TiO2 and CaTiO3). The results showed that the hardness HA/Ti6Al4V composites increased by 221.6% with increasing sintering temperature from 700oC to 1000oC. In contrast,the density of the composites decreased by 1.9% with increasing sintering temperature.

    Item Type: Article
    Subjects: T Technology > TJ Mechanical engineering and machinery
    Divisions: Faculty of Engineering > Department of Mechanical Engineering
    Depositing User: Amir Arifin
    Date Deposited: 15 Feb 2016 09:37
    Last Modified: 15 Feb 2016 09:37

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