A study of hydroxyapatite/calcium sulphate bioceramics

Hydroxyapatite/calcium sulphate anhydrate (HAP/CSA) powders were prepared by the wet precipitation method at pH 10. HAP/CSA ceramics were sintered at 1000 °C, and then degraded in citric buffer solution at 37 °C. The X-ray diffraction (XRD) and scanning electron microscopy (SEM) were performed to study phase composition and microstructure of the ceramics. The results showed that HAP/CSA was a kind of potential in situ pore forming bioceramics.