Effect of MgO addition on solid state synthesis and thermal behavior of beta-tricalcium phosphate

In the present work the effect of Mg2+ ion doping (1–14mol%) on the solid state synthesis of beta-tricalcium phosphate (β-TCP) powder and its thermal behaviour is investigated. The powders are synthesized at temperatures between 1000 and 1300°C for 2h, starting from brushite (hydrated calcium hydrog...

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Bibliographic Details
Published in:Ceramics international 2015-03, Vol.41 (2), p.2512-2518
Main Authors: Sasidharan Pillai, Rahul, Sglavo, Vincenzo M.
Format: Article
Language:English
Subjects:
A. Powders: solid state reaction
B. Impurities
C. Thermal properties
Calcium
Calcium carbonate
Calcium phosphate
Ceramics
D. MgO
Lattices
Magnesium oxide
Phosphates
Solid state
Synthesis
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Summary:In the present work the effect of Mg2+ ion doping (1–14mol%) on the solid state synthesis of beta-tricalcium phosphate (β-TCP) powder and its thermal behaviour is investigated. The powders are synthesized at temperatures between 1000 and 1300°C for 2h, starting from brushite (hydrated calcium hydrogen phosphate—CaHPO4·2H2O) and calcium carbonate (Ca CO3). The maximum substitution of Mg2+ ion in β-TCP lattice decreases from >14mol% to less than 8mol% as the synthesis temperature increases from 1000 to 1300°C. It is also found that already in 1mol% MgO doped powders the β-TCP phase is stabilized at temperatures higher than 1500°C.
ISSN:0272-8842
1873-3956
DOI:10.1016/j.ceramint.2014.10.073