In the acid proof conversion coat film repair manner of the carbon fiber-reinforced graphite composite material which

摘要

PROBLEM TO BE SOLVED: To provide an oxidation-resistant coating film for a carbon-fiber- reinforced carbon composite material, which has a damaged part locally repaired, and also to provide a method for locally and simply repairing a damaged part of the coating film. ;SOLUTION: This method for repairing a damaged part 11 of an oxidation- resistant coating film 2 for a carbon-fiber-reinforced carbon composite material 1 with phosphatic alumina (such as AlPO4-Al2O3 mixture) 13 comprises filling the damaged part 11 with a phosphatic alumina paste material 12, thereafter drying this phosphatic alumina paste material 12, and thereafter heating the dried material.;COPYRIGHT: (C)2001,JPO