Ceramic-matrix composite component fabrication
AssigneeNorthrop Grumman Corporation
InventorThomas Edward Strasser
Life of this patent
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Abstract
A method of fiber preparation for discontinuous fiber-reinforced ceramic matrix composite and a coated discontinuous fiber prepared by this method. The method includes immersing a fiber spool in a resin and drip drying the fiber spool until any excess resin is removed. Next, the damp fiber is cut or chopped and heated to the green-state cure temperature of the resin. After the resin has cured, the product is a coated discontinuous fiber whereby the inner fiber filament bundle is held together by a cured resin shell and the individual filaments are held together by the resin.
Claims26
A coated discontinuous non-frayed fiber prepared by a method comprising the steps of:
- a) disposing a polymer-derived ceramic precursor resin on the fiber;
- b) chopping the fiber to form a discontinuous fiber;
- and
- c) heating the resin disposed on the discontinuous fiber to the green-state cure temperature of the resin.
A coated discontinuous non-frayed fiber for a discontinuous fiber-reinforced ceramic matrix composite, comprising:
- a) a polymer-derived ceramic precursor resin;
- and,
- b) a fiber prepared by disposing the resin on the fiber, chopping the fiber to form a discontinuous fiber and curing the resin disposed on the discontinuous fiber.
A method of preparing a fiber for a discontinuous fiber-reinforced ceramic matrix composite, the method comprising the steps of:
- a) disposing a polymer-derived ceramic precursor resin on the fiber;
- b) chopping the fiber to form a discontinuous fiber;
- and
- c) curing the resin disposed on the discontinuous fiber.
A method of preparing a fiber for a discontinuous fiber-reinforced ceramic matrix composite, the method comprising the steps of:
- a) disposing a polymer-derived ceramic precursor resin on the fiber;
- b) chopping the fiber to form a discontinuous fiber;
- and
- c) heating the resin disposed on the discontinuous fiber to the green-state cure temperature of the resin.
Dependencies are inferred from the claim text.