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Reformulation of hydroxyapatite with ZnO

Abdullah, Hasan Zuhudi (2004) Reformulation of hydroxyapatite with ZnO. In: 2n D Colloquium On Postgraduate Research, National Postgraduate Colloquium On Materials, Minerals And Polymer 2004 (MAMIP 2004), Hotel Vistana Penang.

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Abstract

The effect of zinc on the stimulation of osteogenesis has become a major focus in research work on bone formation. Based on this fundamental work, a base HAP body (HA1) was reformulated by adding 10 wt% ZnO. The physical properties (i.e bulk density and porosity), phase analysis (XRD) and surface fracture analysis (SEM) were determined after sintering at five different temperatures (i.e 1150, 1200, 1250, 1300 and 1350°C). Addition of ZnO shows that the bulk density is decreased (2.30 - 2.70 g/cm3) and porosity is increased (5.0 -27.0%) compared to a pure HAP (HA1) at these five different temperatures. The XRD pattern of the HAP + ZnO (HA1Z) indicated that the reaction of HAP and ZnO to form CaZn2(P04)2 occured at 1250°C.

Item Type: Conference or Workshop Item (Paper)
Subjects: T Technology > TJ Mechanical engineering and machinery > TJ1-162 Mechanical engineering and machinery
Divisions: Faculty of Mechanical and Manufacturing Engineering > Department of Mechanical Engineering Technology
Depositing User: Mrs Hasliza Hamdan
Date Deposited: 04 Oct 2011 08:22
Last Modified: 04 Oct 2011 08:22
URI: http://eprints.uthm.edu.my/id/eprint/1825
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