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Article: Findings from Shiraz University advance knowledge in ceramic processing research.
- Article from:
- Journal of Technology
- Article date:
- June 23, 2009
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"Hydroxyapatite powder was prepared by burning bone and heat treating the bone ash obtained at 600-1100 degrees C in an air furnace. The black ash was converted to a white powder after heat treatment," scientists in Iran report.
"X-ray diffraction analysis and Fourier transform infra-red spectroscopy indicated that the white powder was hydroxyapatite and did not contain any organic components of the bone. Furthermore, phase transformation of the resulting hydroxyapatite to other calcium phosphate phases did not occur up to 1100 degrees C. X-ray fluorescence analyses revealed that calcium and phosphorous were the main elements and magnesium and sodium were present ...