Abstract
Calcium phosphate powders were synthesized by wet-chemical precipitation method using CaCO3 and H3PO4 as starting materials. Influence of technological parameters on chemical composition of as-prepared and thermal treated calcium phosphate samples were investigated. The following technological parameters were varied: temperature of the suspension during the process of synthesis (T, °C), ending pH value, aging time of suspension (τ, h) and thermal processing (T, °C; τ, h). The obtained calcium phosphates powders were identified and characterized using Fourier transform infrared spectroscopy method and X-ray diffraction. FTIR spectra of as-synthesized calcium phosphate powders showed characteristic chemical bands of hydroxyapatite (PO4 3−, OH−, H2O absorbed, CO3 2−, HPO4 2−) at definite wave number ranges. Carbonate and OH− absorbed bands disappear after calcination above 900°C. The experimental results of FTIR spectra X-ray diffraction showed biphasic mixtures containing HAp and β-tricalciumphosphate (β-TCP). The secondary phase (β-TCP) was formed after calcination HAp samples at 1000°C and above.
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© 2008 Springer-Verlag Berlin Heidelberg
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Salma, K., Borodajenko, N., Plata, A., Berzina-Cimdina, L., Stunda, A. (2008). Fourier Transform Infrared Spectra of Technologically Modified Calcium Phosphates. In: Katashev, A., Dekhtyar, Y., Spigulis, J. (eds) 14th Nordic-Baltic Conference on Biomedical Engineering and Medical Physics. IFMBE Proceedings, vol 20. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-69367-3_19
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DOI: https://doi.org/10.1007/978-3-540-69367-3_19
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-540-69366-6
Online ISBN: 978-3-540-69367-3
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