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 > TJ1-1570 Mechanical engineering and machinery
Divisions: Faculty of Engineering > 21201-Mechanical Engineering (S1)
Depositing User: Amir Arifin
Date Deposited: 21 Oct 2019 05:00
Last Modified: 21 Oct 2019 05:00

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