Synthesis of Si-Substituted β-Tricalcium Phosphate Ceramics with Controlled Composition
Pure b-tricalcium phosphate (bTCP) and Si-substituted b-tricalcium phosphate powders with compositions ranging from x = 0.01 to 0.20 were synthesized using a wet precipitation method. The results showed that the addition of Si decreased the maturation time of single-phase Si-substituted bTCP. For longer maturation time, other phases were observed such as hydroxyapatite (HA) and a-tricalcium phosphate (aTCP). The Si incorporation was confirmed by X-ray diffraction with Rietveld refinement, indicating an increase of the lattice volume from 3524.88 Å3 for pure bTCP to 3527.41 Å3 with increasing Si content.
Marcelo Prado and Cecília Zavaglia
M.K. Mekki-Berrada et al., "Synthesis of Si-Substituted β-Tricalcium Phosphate Ceramics with Controlled Composition ", Key Engineering Materials, Vols. 396-398, pp. 165-168, 2009