ANALYSIS ON THE METHODS OF INERT COATING OF CARBON MATERIALS

The inert coating of carbon materials and the coating methods have been discussed. The features of usual three methods (impregnation method, chemical vapor deposition, plasma spraying) have been analyzed.It was also discussed if some new methods such as the sol gel method,electrochemical method and the electron beam could be used in the preparation of the inert coating for carbon materials.The coating method and reagent should be chosen according to the final use, application environment and high proportion of the property to price. At present, electron beam spraying,and chemical vapor deposition are potentially used as coating method.