Carbon/carbon composites have excellent biocompatibility with human hard tissue and elasticity modulus similar with that of human bones, which endow them great potential applications in substitution for human loaded bones. The current research situations and applications of carbon/carbon composites in human loaded bones are reviewed. The coating technologies of bioactive layers on carbon/carbon composites are discussed. The problems to be solved and the prospects of carbon/carbon composites in human loaded bones are analyzed and predicted. It is believed that bioactive layers coating on carbon/carbon composites should play an important role in human loaded bones.
Biocompatible Materials ; chemistry ; Bone Substitutes ; chemistry ; Bone and Bones ; physiology ; Carbon ; chemistry ; Coated Materials, Biocompatible ; chemistry ; Composite Resins ; Durapatite ; chemistry ; Humans ; Stress, Mechanical ; Tensile Strength

A simple plasma spraying method was employed in coating hydroxyapaptite (HA) on to carbon/carbon composites (C/C composites). The morphology of the coating was examined under scanning electron microscope (SEM). The phase constitutions of the HA coating were determined by X-ray diffractometer (XRD). The shear strength of the HA coating-C/C composite substrates was detected. A hydroxyapatite coating with rough surface was observed. A considerable amount of amorphous phase appeared as a result from the coating process, which could be transformed into the morphous phase crystalline HA after subsequent heat treatment. The shear strength between the HA coating and C/C composite substrates was 7.15 MPa.
Bone Substitutes ; chemistry ; Carbon ; chemistry ; Carbon Compounds, Inorganic ; chemistry ; Coated Materials, Biocompatible ; chemistry ; Durapatite ; pharmacology ; Humans