An investigation of the chemical synthesis and high-temperature sintering behaviour of calcium hydroxyapatite (HA) and tricalcium phosphate (TCP) bioceramics

1997-02-01
Tas, AC
Korkusuz, Feza
Timucin, M
Akkas, N
The experimental conditions for the synthesis of sub-micrometre, spherical particles of calcium hydroxyapatite [Ca,,(PO,),(OH),] (HA) and tricalcium phosphate [Ca,(PO,),] (TCP) are investigated through chemical coprecipitation from the aqueous solutions of calcium nitrate and di-ammonium hydrogen phosphate salts. The precipitation process employed was also found to be suitable for the production of sub-micrometre HA/TCP composite powders in situ. The synthesized pure HA and TCP powders were found to be stable even at 1300 degrees C in air for prolonged heating times. Bioceramic sample characterization was achieved by powder X-ray diffraction (XRD), scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDX), and density and surface area measurements. Crystallographic analyses of HA powders were performed by the Rietveld method on the powder XRD data.

Citation Formats
A. Tas, F. Korkusuz, M. Timucin, and N. Akkas, “An investigation of the chemical synthesis and high-temperature sintering behaviour of calcium hydroxyapatite (HA) and tricalcium phosphate (TCP) bioceramics,” JOURNAL OF MATERIALS SCIENCE-MATERIALS IN MEDICINE, vol. 8, no. 2, pp. 91–96, 1997, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/56463.