Smooth surface ceramic composites
First Claim
1. A method of making a smooth surfaced, fiber reinforced ceramic matrix composite, comprising:
- providing a fiber preform, the preform having a surface containing voids;
placing fibers into the voids;
coating the preform fibers and the void fibers with a coating material to create a weak interface; and
infiltrating the coated fibers with a matrix material to infill the voids and preform, and form strongly bonded networks within the voids.
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Accused Products
Abstract
A method of making a smooth surfaced, fiber reinforced ceramic matrix composite includes the steps of providing a fiber preform, the preform having a surface containing voids; placing fibers into the voids; coating the preform fibers and the void fibers with a coating material to create a weak interface; and infiltrating the coated fibers with a matrix material to infill the voids and preform, and form strongly bonded networks within the voids. Alternatively, the resulting smooth surfaced, fiber reinforced ceramic matrix composite may include, in addition to the first coating material on the preform fibers and the void fibers and the matrix material within the coated fibers and the preform to infill the voids and preform, a second coating material on the preform fibers and the void fibers, creating a second coating of substantially uniform thickness on the fibers and forming strongly bonded networks within the voids.
14 Citations
53 Claims
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1. A method of making a smooth surfaced, fiber reinforced ceramic matrix composite, comprising:
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providing a fiber preform, the preform having a surface containing voids; placing fibers into the voids; coating the preform fibers and the void fibers with a coating material to create a weak interface; and infiltrating the coated fibers with a matrix material to infill the voids and preform, and form strongly bonded networks within the voids. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29)
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30. A method of making a smooth surfaced, fiber reinforced ceramic matrix composite, comprising:
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providing a fiber preform, the preform having a surface containing voids; placing fibers into the voids; coating the preform fibers and the void fibers with a first coating material to create a weak interface; coating the preform fibers and the void fibers with a second coating material to create a second coating of substantially uniform thickness on the fibers and form strongly bonded networks within the voids; and infiltrating the networks and coated fibers with a matrix material to infill the voids and preform.
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31. A smooth surfaced, fiber reinforced ceramic matrix composite, comprising:
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a fiber preform, the preform having a surface containing voids; void fibers in the voids; a coating material on the preform fibers and the void fibers creating a weak interface; and a matrix material within the coated fibers and the preform to infill the voids and preform, and form strongly bonded networks within the voids. - View Dependent Claims (32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52)
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53. A smooth surfaced, fiber reinforced ceramic matrix composite, comprising:
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a fiber preform, the preform having a surface containing voids; void fibers in the voids; a first coating material on the preform fibers and the void fibers, creating a weak interface; a second coating material on the preform fibers and the void fibers, creating a second coating of substantially uniform thickness on the fibers and forming strongly bonded networks within the voids; and a matrix material within the coated fibers and the preform to infill the voids and preform.
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Specification