Preparation and Characteristics of Strontium Containing Bioactive CaSiO3 Ceramics
Strontium(Sr) containing CaSiO3 powders were synthesized using chemical precipitation. X-Ray Fluorescence (XRF) analysis confirmed the incorporation of Sr in CaSiO3. X-Ray diffraction (XRD) analysis revealed that the incorporation of Sr into the lattice structure of β-CaSiO3 powders, does not change its β-phase composition. The lattice dimension of β-CaSiO3 powders increased with the increase of Sr contents (0-10% Sr). Sr-CaSiO3 ceramic disk were prepared from the Sr-CaSiO3 poweders by uniaxial pressing at 150 MPa and sintering at 1100°C for 3h. XRD and Differential Thermal Anaysis (DTA) analysis indicated that there is a correlation betweem Sr concentration (0-10% Sr) and the phase transition from β-CaSiO3 to α-CaSiO3 with the increase of Sr contents. This transition was promoted by the decrease in temperature.
Xingdong Zhang, Xudong Li, Hongsong Fan, Xuanyong Liu
C. T. Wu and H. Zreiqat, "Preparation and Characteristics of Strontium Containing Bioactive CaSiO3 Ceramics", Key Engineering Materials, Vols. 330-332, pp. 499-502, 2007