Preparation of bioactive calcium phosphate coating on porous C/C substrate by a novel deposition technique

Abstract

A novel heat substrate technique, high frequency inductive heat deposition (IHD), was introduced to coat porous carbon materials, C/C and carbon felt to improve their bioactivity. The morphologies, composition and microstructure of the resulting coatings were examined by scanning electron microscopy (SEM), energy dispersive spectra (EDS), X-ray diffractometer (XRD) and Fourier transform infrared spectroscopy (FTIR). The results show that, the calcium phosphate consisted of non-stoichiometric, CO3-containing and plate-like octacalcium phosphate (Ca _8−xH₂(PO₄)₆, OCP) could uniformly cover the entire porous surfaces of carbon materials. Good adhesion of the coating to carbon material substrates was observed.

Keywords

carbon / bioactive / calcium phosphate / coating / inductive heat deposition

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