METHOD FOR COATING GRAPHITE MATERIAL WITH PYROLYTIC BORON NITRIDE AND COATED ARTICLE OBTAINED BY THAT METHOD

摘要

PROBLEM TO BE SOLVED: To provide a method for coating a graphite material with pyrolytic boron nitride (PBN), by which a PBN coating film strong to thermal shock, robust and hard to come off can be formed on a surface of the graphite material, and to provide a coated article obtained by using the method.;SOLUTION: A method for coating a graphite material with pyrolytic boron nitride includes densifying a surface of the graphite material by CVI (Chemical Vapor Infiltration) treatment, further treating the surface with a reactive gas, and then forming a PBN coating film over the treated surface. A coated article obtained by this method is also provided.;COPYRIGHT: (C)2014,JPO&INPIT