Carbonation of High-Temperature Calcined Hydroxyapatite by Solid-Ion-Exchange Reaction

Qing Xia Zhu; Wei Hui Jiang; Qiong Qiong Xu

doi:10.4028/www.scientific.net/AMR.152-153.1645

Paper Titles

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Carbonation of High-Temperature Calcined Hydroxyapatite by Solid-Ion-Exchange Reaction
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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 152-153Carbonation of High-Temperature Calcined...

Carbonation of High-Temperature Calcined Hydroxyapatite by Solid-Ion-Exchange Reaction

Abstract:

Carbonated hydroxyapatite (CHA) was synthesized by solid-ion-exchange reaction of hydroxyapatite (HA) powders in CO2 atmosphere. The effects of the treatment atmosphere, temperature and time on carbonate substitution were investigated. The phase composition of the powders were characterized by X-ray diffraction and the content and type of the carbonate substitution were studied using Carbon-sulfur elemental analysis and Fourier transform infrared spectroscopy, respectively. The results show that the carbonate ion can enter the HA crystal lattice to form CHA giving priority to A-type by controlling the treatment temperature, atmosphere and time. Wet atmosphere treatment favors the reconstitution of hydroxyl and treatment in dry CO2 atmosphere favors the formation of A-Type substitution. The appropriate reaction temperature is 900 . Carbonate content increases with the treatment time and a further extension of treatment time tends to a slower increase of carbonate content.

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Advanced Materials Research (Volumes 152-153)

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1645-1649

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https://doi.org/10.4028/www.scientific.net/AMR.152-153.1645

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October 2010

Authors:

Qing Xia Zhu, Wei Hui Jiang, Qiong Qiong Xu

Keywords:

Carbonated Hydroxyapatite, Solid-Ion-Exchange Reaction, Temperature, Treatment Atmosphere, Treatment Time

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