Apatite Forming on the Surface of Apatite-Wollastonite/β-Tricalcium Phosphate Bioactive Ceramic

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Bioactive composite of apatite-wollastonite(AW)/β-tricalcium phosphate (β-TCP) was prepared. The nucleation and growth of bio-apatite on the surface of AW/β-TCP ceramic in simulated body fluid (SBF) were investigated. The surface morphological structure, phase compositions and microstructure of the materials were characterized by scan electron microscopy (SEM), X-ray diffraction (XRD) and infrared spectroscopy (IR); Results show that the surfaces of the AW/β-TCP composite ceramic are covered with a layer of carbonate hydroxyapatite (HCA) when soaked in SBF, which indicates their bioactivity; Such HCA layer is composed of fine ball-like HA granules. With excellent bioactivity and bio-absorption, AW/β-TCP bioactive composite ceramic is expected to be a good candidate for bone substitutes and bone tissue engineering scaffolds.

Info:

Periodical:

Key Engineering Materials (Volumes 336-338)

Edited by:

Wei Pan and Jianghong Gong

Pages:

1692-1695

DOI:

10.4028/www.scientific.net/KEM.336-338.1692

Citation:

B. Xiao et al., "Apatite Forming on the Surface of Apatite-Wollastonite/β-Tricalcium Phosphate Bioactive Ceramic", Key Engineering Materials, Vols. 336-338, pp. 1692-1695, 2007

Online since:

April 2007

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$35.00

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