FTIR study of carbonate loss from carbonated apatites in the wide temperature range

Journal of Biomedical Materials Research. Part B, Applied Biomaterials
J V RauI V Fadeeva

Abstract

The mineral constituent of bone tissue is a carbonate-substituted apatite (CHA). The thermal stability of the CHA has been revealed to depend on the substitution type and degree, although relatively little is known about this behavior. The aim of this study was to investigate the carbonate loss from synthetic CHAs in equilibrium conditions in a wide temperature range. An approach based on FTIR spectroscopy of condensed gas phase was applied to evaluate the CO and CO2 release with increasing temperature. Four different CHAs were studied, which were prepared by either precipitation from solution or the solid-state interaction. The samples differ from each other by the substitution degree. In one of the samples calcium was partially substituted by magnesium. Decomposition was shown to start at surprisingly low temperature, about 400 degrees C, and the CO content increases monotonously with the increase of temperature. The CO2 content goes through a maximum due to its decomposition into carbon monoxide and oxygen, the temperature of this maximum being strongly dependent on the chemical synthesis route. Therefore, control of the sintering atmosphere with respect to the CO2/CO ratio is needed when preparing the carbonated apatite bio...Continue Reading

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Citations

Dec 31, 2008·Journal of Materials Science. Materials in Medicine·Jidong LiYubao Li
Jan 15, 2011·Journal of Materials Science. Materials in Medicine·P RajeshHarikrishna Varma
Sep 13, 2005·Bone·J H G RochaJ M F Ferreira
Jun 26, 2018·Advanced Healthcare Materials·Alina KirillovaKen Gall
Jan 5, 2006·Journal of Biomedical Materials Research. Part a·J H G RochaJ M F Ferreira
Jul 23, 2018·Journal of Materials Science. Materials in Medicine·Kenji FujisawaYouji Miyamoto
Nov 23, 2019·Journal of Biomedical Materials Research. Part a·Kazuya AkitaYouji Miyamoto
Apr 2, 2010·ACS Applied Materials & Interfaces·Julietta V RauSergey M Barinov
Aug 19, 2021·Journal of Materials Science. Materials in Medicine·Inna V FadeevaJulietta V Rau
Feb 12, 2019·ACS Applied Materials & Interfaces·Albert BarbaMaria-Pau Ginebra

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