Method for repairing ceramic matrix composite and ceramic matrix composite member
AssigneeMitsubishi Heavy Industries, Ltd.
InventorsMasahiko Mega, Takayuki Kurimura, Taiji Torigoe, Mineaki Matsumoto
Life of this patent
Estimating the term…
Abstract
A method for repairing a target member including a ceramic matrix composite reinforced by ceramic fiber includes: a removal step of removing at least a part of a surface of the target member; an arrangement step of arranging a green body for repair which includes the ceramic fiber on a portion where the surface is removed in the removal step; an impregnation step of impregnating at least the portion of the target member where the green body for repair is disposed with slurry; and a sintering step of sintering the target member on which the green body for repair is disposed, after the impregnation step.
Claims7
A method for repairing a target member including a ceramic matrix composite reinforced by ceramic fiber, the method comprising:
- a removal step of removing at least a part of a surface of the target member;
- a hole-forming step of forming at least one hole on the portion where the surface is removed after the removal step;
- an arrangement step of arranging a green body for repair which includes the ceramic fiber on a portion where the surface is removed in the removal step;
- an impregnation step of impregnating at least the portion of the target member where the green body for repair is disposed with slurry;
- and
- a sintering step of sintering the target member on which the green body for repair is disposed, after the impregnation step wherein the portion where the surface is removed in the removal step includes a first region where a density of the ceramic fiber is relatively high and a second region where the density of the ceramic fiber is lower than that in the first region, and wherein the hole-forming step includes forming the at least one hole by drilling the at least one hole in the second region.
Dependencies are inferred from the claim text.