Thermal insulation material and method for producing thermal insulation material
AssigneeIbiden Co., Ltd.
InventorsTomoya Kobayashi, Hiro Kitaguchi
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Abstract
A thermal insulation material having carbon fibers, the thermal insulation material containing; a covering layer containing pyrolytic carbon at a surface of the thermal insulation material; and a base layer containing carbon-based particles between the carbon fibers below the covering layer. A method for producing a thermal insulation material including: forming a base layer by impregnating a surface of a molded body containing carbon fibers with a slurry containing carbon-based particles; and forming a covering layer containing pyrolytic carbon on the base layer by applying a chemical vapor deposition method to the molded body in a CVD furnace.
Claims11
A thermal insulation material,
- comprising:
- a covering layer containing pyrolytic carbon at a surface of the thermal insulation material;
- and
- a base layer below the covering layer, the base layer containing carbon fibers and carbon-based particles between the carbon fibers,
- wherein the pyrolytic carbon of the covering layer directly bonds to the carbon fibers exposed at a surface of the base layer, and the carbon-based particles and the carbon fibers in the base layer are bonded to each other with a carbon-based adhesive.
A method for producing a thermal insulation material, comprising:
- forming a base layer by impregnating a surface of a molded body containing carbon fibers with a slurry containing carbon-based particles;
- and
- forming a covering layer containing pyrolytic carbon on the base layer by applying a chemical vapor deposition method to the molded body in a CVD furnace,
- wherein the pyrolytic carbon of the covering layer directly bonds to the carbon fibers exposed at a surface of the base layer, and the carbon-based particles and the carbon fibers in the base layer are bonded to each other with a carbon-based adhesive.
Dependencies are inferred from the claim text.