Publikace: Characterization and Thermal Behavior of Hydroxyapatite Prepared by Precipitation
Článekopen accesspeer-reviewedThis is a postprint of an article published in Journal of Thermal Analysis and Calorimetry. The final authenticated version is available online at: https://doi.org/10.1007/s10973-019-08144-5 or https://link.springer.com/article/10.1007%2Fs10973-019-08144-5.Načítá se...
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Šimková, Lenka
Šulcová, Petra
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Springer
Abstrakt
The aim of this study was to find appropriate precipitation conditions (Ca/P ratio, pH and precipitation rate) for the synthesis of hydroxyapatite (HAP; Ca-10(PO4)(6)(OH)(2)) and to determine the effect of precipitation conditions on its thermal behavior. Hydroxyapatite was synthesized by precipitation. Three ratios of Ca/P (1; 1.67; 3) were selected for the synthesis, then pH 7 and 12 was selected, and the ammonium dihydrogen phosphate precipitation rate was set to 2 mL min(-1). The prepared powders were studied from the standpoint of particle size distribution, crystal size and morphology (optical microscope, scanning electron microscope), phase composition (X-ray diffraction analysis) and thermal stability in relation to the Ca/P ratio.
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Klíčová slova
Hydroxyapatite, Precipitation, Ca/P ratio, XRD, SEM, Simultaneous DTA-TG analysis, Hydroxyapatit, srážení, poměr Ca/P, XRD, SEM, DTA-TG