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|Title: ||Comparative study between hydroxyapatite synthesised from two different sources: Baling & Simpang Pulai limestone|
|Authors: ||Siti Hana Abu Bakar|
Rashita Abd Rashid
|Issue Date: ||2009|
|Publisher: ||Mineral Research Centre, Minerals and Geoscience Department Malaysia|
|Citation: ||Proceedings of Simpomin 2009: Sustainability and Competitiveness of Malaysian Mineral Through R & D: Bukit Merah Laketown Resort, Taiping, Perak, 9-11 Nov 2009, p. 49-56|
|Abstract: ||Hydroxyapatite, HA (CalO(P04)6(OHh) is known as a biocompatible material due to its resemblance to bone mineral in chemical and crystal structure. HA can be produced by several methods by using calcium and phosphate sou1t:es. Different reactant materials were found to give different properties ofHA such as grain size, crystallinity. and mechanical st1'f!ngth. Baling limestone and Simpang Pulai limestone were used in this study to synthesize HA via wet precipitation method. The synthesised HA was then characterised using X-ray Diffractometer (XRD) for phase identification, Pycnometerfor density measuremen t, X-ray Fluorescence (XRF) for chemical composition analysis, Fourier TransjOnn Infra Red (FTlR) for c-o bond and Universal Testing Machine (UTM) for compression st1'f!ngth. The XRD results demonstrate d that both Baling and Simpang Pulai limestones can be used to synthesize high purity HA. The results also showed that HA produced from Baling limestone has better potential due to its higher compression strength (61.10 MPa) compared to Simpang Pulai limestone (42.17 MPa).|
|Appears in Collections:||Publications|
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