Braze material for ceramic matrix composite articles
AssigneeROLLS-ROYCE plc
InventorsScott Nelson, Raymond Ruiwen Xu, Sean E. Landwehr, Daniel Kent Vetters, Samantha Tatar
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Abstract
In some examples, a braze material includes a first set of particles, a second set of particles, and a polymeric binder. The first set of particles includes a braze powder, where the braze powder comprises an Si-containing alloy. The first set of particles defines an average or median particle diameter between about 1 μm and about 40 μm. The second set of particles includes at least one of SiC or a transition metal carbide, where the second set of particles has a multimodal particle size distribution.
Claims20
A braze material comprising:
- a first set of particles comprising a braze powder, wherein the braze powder comprises an Si-containing alloy, and wherein the first set of particles defines a median particle diameter between about 1 μm and about 40 μm;
- a second set of particles comprising at least one of SiC or a transition metal carbide, wherein the second set of particles has a multimodal particle size distribution;
- and
- a polymeric binder.
A method of repairing a ceramic matrix composite component comprising:
- removing a damaged portion of a ceramic matrix composite component to define a repair surface;
- applying a braze material to the repair surface, wherein the braze material comprises:
- a first set of particles comprising a braze powder, wherein the braze power comprises a Si-containing alloy, and wherein the first set of particles defines a median particle diameter between about 1 μm and about 40 μm;
- a second set of particles comprising at least one of SiC or a transition metal carbide, wherein the second set of particles has a multimodal particle size distribution;
- and
- a polymeric binder;
- and
- heating the ceramic matrix composite component and the braze material to form a repaired article.
An assembly comprising:
- a ceramic matrix composite component defining a repair surface;
- and
- a braze material on the repair surface, wherein the braze material comprises:
- a first set of particles comprising a braze powder, wherein the braze powder comprises an Si-containing alloy, and wherein the first set of particles defines a median particle diameter between about 1 μm and about 40 μm;
- a second set of particles comprising at least one of SiC or a transition metal carbide, wherein the second set of particles has a multimodal particle size distribution;
- and
- a polymeric binder.
Dependencies are inferred from the claim text.