Abstract
Three kinds of glasses in the system CaO-Al2O3-SiO2 with different compositions were mixed with calcium phosphate powders. The mixture was formed into cylindrical shape, and then treated hydrothermally at the temperatures from 100 to 250°C under the saturated vapor pressure of water. The mixture of glasses and β-tricalcium phosphate (β-TCP) could be hardened under hydrothermal conditions. The hardened material prepared at 250°C from the CaO-rich glass and β-TCP had a compressive strength of about 40 MPa. According to XRD and SEM observation for the hardened material, hydroxyapatite fine crystals were precipitated in its matrix.
