The Synthesis Of Nanosized Hydroxyapatite Powders
| dc.contributor.author | Tan, Su Anne | |
| dc.date.accessioned | 2023-01-10T06:55:22Z | |
| dc.date.available | 2023-01-10T06:55:22Z | |
| dc.date.issued | 2007-04 | |
| dc.description.abstract | Nanometer sized hydroxyapatite particles are synthesized via wet chemical precipitation and characterized. This research studies how key parameters such as the pH of synthesis, and also the reaction, aging and calcination temperatures affect the size and phase purity of the hydroxyapatite produced. The main aim is to determine the optimum condition for producing phase-pure, nano-sized hydroxyapatite with minimum agglomeration, to be used as bone replacement material. A 0.2 M solution of Ca(N03)2.4H20 (Calcium Nitrate Tetrahydrate) and a 0.12 M solution of (NH4)2HP04 (Diammonium Hydrogen Phosphate) are coprecipitated in the presence of a dispersant. P207 (Tetrapotassium Pyrophosphate Tetrabasic), under various temperatures, pH and continuous stirring. This is followed by aging at various temperatures and durations, and after that drying, and finally calcination at various temperatures ranging from 700 to 1000°C. Characterization was carried out using X-ray powder diffraction and X-ray fluoroscopy for phase identification while particle sizing was done via Scanning Electron Microscopy (SEM), the BET method, and also a particle sizer. | en_US |
| dc.identifier.uri | http://hdl.handle.net/123456789/17123 | |
| dc.language.iso | en | en_US |
| dc.publisher | Universiti Sains Malaysia | en_US |
| dc.subject | Mining engineering | en_US |
| dc.title | The Synthesis Of Nanosized Hydroxyapatite Powders | en_US |
| dc.type | Thesis | en_US |
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