Material processing of hydroxyapatite and titanium alloy (HA/Ti) composite as implant materials using powder metallurgy: A review
| Main Authors: | Arifin, Amir, Sulong, Abu Bakar, Muhamad, Norhamidi, Syarif, Junaidi, Ramli, Mohd Ikram |
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| Format: | Article PeerReviewed application/pdf |
| Terbitan: |
Elsevier
, 2014
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| Subjects: | |
| Online Access: |
http://eprints.unsri.ac.id/3398/1/JMAD_for_Author_for_Eprint.pdf http://dx.doi.org/10.1016/j.matdes.2013.09.045 http://eprints.unsri.ac.id/3398/ |
Daftar Isi:
- The bio-active and biodegradable properties of hydroxyapatite (HA) make this material a preferred candidate for implants such as bone replacement in replacing natural tissues damaged by diseases and accidents. However, the low mechanical strength of HA hinders its application. Combining HA with a biocompatible material with a higher mechanical strength, such as a titanium (Ti) alloy, to form a composite has been of interest to researchers. A HA/Ti composite would possess characteristics essential to modern implant materials, such as bio-inertness, a low Young's modulus, and high biocompatibility. However, there are issues in the material processing, such as the rheological behavior, stress-shielding, diffusion mechanism and compatibility between the two phases. This paper reviews the HA and Ti alloy interactions under various conditions, in vitro and in vivo tests for HA/Ti composites, and common powder metallurgy processes for HA/Ti composites (e.g., pressing and sintering, isostatic pressing, plasma spraying, and metal injection molding). © 2013 Elsevier Ltd.