Airfoil with sandwich composite
AssigneeRtx Corporation
InventorsRussell Kim, Raymond Surace, James T. Roach, Jonas Banhos
Life of this patent
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Abstract
A method for fabricating an airfoil for a gas turbine engine includes providing a core blank made of a cellular material, shaping the core blank into a cellular core, forming a fiber preform that has an airfoil section and a platform by laying-up first and second ceramic fiber ply skins on the cellular core such that in the platform the cellular core is sandwiched radially between the first and second ceramic fiber ply skins, the first and second ceramic fiber ply skins each include at least one 2-D ceramic fiber ply, and densifying the fiber preform with a ceramic matrix.
Claims9
A method for fabricating an airfoil for a gas turbine engine, the method comprising:
- providing a core blank made of a cellular material;
- shaping the core blank into a cellular core;
- forming a fiber preform that has an airfoil section and a platform by laying-up first and second ceramic fiber ply skins on the cellular core such that in the platform the cellular core is sandwiched radially between the first and second ceramic fiber ply skins, the first and second ceramic fiber ply skins each include at least one 2-D ceramic fiber ply;
- and
- densifying the fiber preform with a ceramic matrix.
Dependencies are inferred from the claim text.