Powder Injection Moulded Ti6Al4V-HA Composite for Implants
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Published:2023-05-31
Issue:5
Volume:52
Page:1557-1565
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ISSN:0126-6039
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Container-title:Sains Malaysiana
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language:
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Short-container-title:JSM
Author:
Mahmud Nurul Nadiah,Sulong Abu Bakar,Ameyama Kei
Abstract
Powder injection moulding (PIM) is widely used to produce complex shapes of Titanium and its alloys. Ti6Al4V-HA feedstocks at 63, 64 and 66 vol.% were produced by combining a Ti6Al4V-HA powder mixture (90:10 wt.%) with a binder system containing palm stearin (PS) and low-density polyethylene (LDPE). Binder system consisted with 60 wt.% of PS and 40 wt.% of LDPE. All powder loading materials were successfully injection moulded into the shape of a tension bar. Following that, all powder loadings were successfully debound in solvent and thermal methods. Based on SEM observation that 66 vol.% powder loading demonstrated homogenized distribution of powder and binder. Hence, 66 vol.% powder loading was selected for further process sintering at 1300 ºC, and its bending strength was evaluated. Sintered Ti6Al4V-HA with porous structure has Young’s modulus of 11 GPa, within the Young modulus of bone (10 to 30 GPa). The results of this study indicate that sintered Ti6Al4V-HA has potential as an implant material.
Publisher
Penerbit Universiti Kebangsaan Malaysia (UKM Press)
Subject
Multidisciplinary