Synthesis and characterization of nanocrystalline hydroxyapatite powder
Nanocrystalline hydroxyapatite (HA) powder was synthesized by a simple heating process involving simple chemical reaction. The characterization of the produced powder showed that the powder is nanosize with particle in the range of 30-70 mm in diameter and almost evenly spherical in shape. The po...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Trans Tech Publications, Switzerland
2015
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| Subjects: | |
| Online Access: | http://irep.iium.edu.my/46923/4/46923_-_Synthesis_and_characterization_of_nanocrystalline_hydroxyapatite_powder.pdf http://irep.iium.edu.my/46923/ http://www.ttp.net/1022-6680.html |
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| Summary: | Nanocrystalline hydroxyapatite (HA) powder was synthesized by a simple heating
process involving simple chemical reaction. The characterization of the produced powder showed
that the powder is nanosize with particle in the range of 30-70 mm in diameter and almost evenly
spherical in shape. The powder also has a high surface area of 43.16 m2/g. Field Emission Scanning
Electron Microscopy (FESEM) observation showed the crystallite and particle size become bigger
with an increment of calcination temperature, indicating increasing of crystallinity. FESEM
observation showed the particle size become bigger with an increment of calcinations temperature.
It is in agreement with the crystallite size analysis, obtained by Scherer’s formula and particle size
analysis, measured by Nano-Sizer. X-ray Diffraction (XRD) and Fourier Transform Infra Red
Spectroscopy (FTIR) analyses exhibited the same result, where HA phase was clearly observed at at
various temperatures up to 600˚C. However, at temperature more than 600˚C, Tri calcium
phosphate (TCP) phase appeared suppressing the HA phase, producing biphasic calcium phosphate. |
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