Preparation of Hydroxyapatite/Chitosan Biological Coatings on Carbon/Carbon Composites
Hydroxyapatite/Chitosan (HAp/CS) bio-coatings were prepared on the surface of carbon/ carbon (C/C) composites by hydrothermal electrophoretic deposition, using sonochemical process resulted HAp nanoparticles, isopropyl alcohol and chitosan as raw materials. The influences of hydro- thermal conditions and deposition voltage on the microstructures and morphologies of the as-prepared coatings were investigated. It was shown that homogenous and dense HAp/CS coatings on C/C composites are obtained by hydrothermal electrophoretic deposition. With the increase of deposition voltage, density and homogeneity of the as-prepared HAp/CS composite coatings are well improved. Due to the growth of HAp nanoparticles in the hydrothermal condition, the subsequent heat treatment of the HAp/CS coatings is not needed.
Wei Pan and Jianghong Gong
Y. H. Li et al., "Preparation of Hydroxyapatite/Chitosan Biological Coatings on Carbon/Carbon Composites", Key Engineering Materials, Vols. 434-435, pp. 502-505, 2010