Mechanochemical Synthesis of SiO4 4--Substituted Hydroxyapatite, Part III - Thermal Stability Full article
Journal |
European Journal of Inorganic Chemistry
ISSN: 1434-1948 , E-ISSN: 1099-0682 |
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Output data | Year: 2016, Number: 12, Pages: 1866-1874 Pages count : 9 DOI: 10.1002/ejic.201501486 | ||||||||||
Tags | Doping, Hydroxyapatite, Mechanochemical synthesis, Silicon, Solid-phase synthesis, Thermal stability | ||||||||||
Authors |
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Affiliations |
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Funding (1)
1 | Council for Grants of the President of the Russian Federation | НШ-2938.2014.3 |
Abstract:
Thermal stability of mechanochemically synthesized silicon-substituted hydroxyapatite containing 0.6, 0.8, 1.0, and 1.2 mol of silicon per mol of apatite unit cell has been studied for the first time. The powders of the silicon-substituted hydroxyapatite were annealed within the temperature range 700-1300 °C. It was found that the substituted hydroxyapatites remain single-phase after annealing at temperatures of up to 900 °C for all concentrations of added silicon. The second phase - silicocarnotite Ca5(PO4)2SiO4 - appears in the materials containing 1.0 and 1.2 mol of added silicon that have been annealed at 1000 °C. In the powder containing 0.8 mol of added silicon, silicocarnotite was detected after annealing at 1100 °C. The formation of silicocarnotite is likely to occur in the nanoparticles of the silicon-substituted hydroxyapatite with silicon concentrations much higher than the average value. It was found that the silicon-substituted hydroxyapatite containing 0.6 mol of silicon per mol of apatite unit cell has the highest thermal stability and remains single-phase up to a temperature of 1200 °C, similarly to pure hydroxyapatite obtained by the same synthesis method.
Cite:
Bulina N.V.
, Chaikina M.V.
, Prosanov I.Y.
, Gerasimov K.B.
, Ishchenko A.V.
, Dudina D.V.
Mechanochemical Synthesis of SiO4 4--Substituted Hydroxyapatite, Part III - Thermal Stability
European Journal of Inorganic Chemistry. 2016. N12. P.1866-1874. DOI: 10.1002/ejic.201501486 WOS Scopus РИНЦ
Mechanochemical Synthesis of SiO4 4--Substituted Hydroxyapatite, Part III - Thermal Stability
European Journal of Inorganic Chemistry. 2016. N12. P.1866-1874. DOI: 10.1002/ejic.201501486 WOS Scopus РИНЦ
Dates:
Submitted: | Dec 27, 2015 |
Published online: | Mar 22, 2016 |
Published print: | Apr 1, 2016 |
Identifiers:
Web of science | WOS:000374702100012 |
Scopus | 2-s2.0-84962580543 |
Elibrary | 26987705 |
Chemical Abstracts | 2016:468142 |
Chemical Abstracts (print) | 164:466316 |
OpenAlex | W2308988215 |