Si-TCP synthesized from Mg-free reagents employed as calcium phosphate cement
Data
2012-08-01
Autores
Motisuke, Mariana 
Tipo
Artigo
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Título de Volume
Resumo
The influence of silicon doping on calcium phosphate cement were explored in this work. α-TCP and Si-α-TCP were prepared by solid state reaction employing Mg-free CaHPO4, CaCO3 and CaSiO3 as precursors. It was possible to obtain TCP powders with low contents of β phase as contaminant. Cement liquid phase was an aqueous solution containing 2.5 wt. (%) of Na2HPO4 and 1.5 wt. (%) of citric acid. The liquid-to-powder ratio was 0.6 mL.g-1. Chemical, physical and mechanical properties of the cement samples were determined by means of XRD, FTIR, XRF, compressive strength and SEM. The calcium phosphate cements obtained achieved satisfactory properties; however, Si-α-TCP presented a decrease on the rate of setting reaction.
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Citação
Materials Research. ABM, ABC, ABPol, v. 15, n. 4, p. 568-572, 2012.