Korespondensi_Fabrication of Titanium-Matrix Composite with 40 wt% Hydroxyapatite by Powder Injection Molding

Barlin, Barlin (2021) Korespondensi_Fabrication of Titanium-Matrix Composite with 40 wt% Hydroxyapatite by Powder Injection Molding. Springer Nature Singapore.

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Abstract

In this work, the performance of composites feedstock HA/Ti for metal injection molding is investigated by rheological characterization with powder loading 65%. Titanium and Hydroxyapatite (HA) powder are mixed with a composite binder, which consists of Palm Stearin (PS) and Polyethylene (PE). The rheology properties are investigated by Shimadzu CFT-500D rheometer. Thermal debinding is utilized for removing the binder system under argon gas. The sintering process is performed under argon conditions at temperature 1200 °C for 2 h. The feedstock 60 wt%Ti and 40 wt%HA show pseudopalstic behaviour which is indicating suitable for MIM application. On the sintered part, Ca:P ratio of HA has changed based on the standard value of HA(1.67) as an indication decomposition of HA. Cracks have been observed on part of composite HA/Ti by SEM due to differences in thermal expansion of the two materials and not a good diffusion between HA and Ti. For further work, modification in the composition of mixture and sintering parameters are required to reach an optimal result.

Item Type:	Other
Subjects:	#3 Repository of Lecturer Academic Credit Systems (TPAK) > Corresponding Author
Divisions:	03-Faculty of Engineering > 21201-Mechanical Engineering (S1)
Depositing User:	Barlin Barlin
Date Deposited:	10 May 2023 07:11
Last Modified:	10 May 2023 07:11
URI:	http://repository.unsri.ac.id/id/eprint/101481

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