Reinforced ceramic structure
AssigneeRockwell International Corporation
InventorsMorris S. Loyd, Michael S. O'Neill
Life of this patent
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Abstract
A reinforced ceramic structure is provided utilizing a composite reinforcing member embedded in a ceramic casting. The reinforcing member is optimally unidirectional composite rope, preferably of graphite epoxy or silicon carbide. By virtue of the thermal expansion rate of the reinforcing member being substantially the same as the ceramic material, the reinforcement member remains integral with the ceramic casting material though subjected to thermal cycles and provides an increase in the tensile strength of ceramic casting heretofore unobtained.
Claims8
A reinforced ceramic structure comprising:
- a casting of hydrosetting ceramic material;
- and
- a reinforcing member embedded in said casting, said reinforcing member being of a material having substantially the same thermal expansion rate as said ceramic material, said reinforcing member being adhesively bonded to said casting, said reinforcing member being formed of composite rope having a plurality of strands, said strands being formed from unidirectional graphite fibers in an organic matrix, said fibers being adhesively bonded together, said strands being adhesively bonded together, said reinforcing member being aligned in said casting in a direction to oppose tensile stress on said casting, said reinforcing member being adhesively bonded to said casting by said organic matrix.
A reinforced ceramic structure comprising:
- a casting of hydrosetting ceramic material;
- and
- a plurality of reinforcing members embedded in said casting, said reinforcing members being of a material having substantially the same thermal expansion rate as said ceramic material, said reinforcing member being adhesively bonded to said casting, said reinforcing members being formed from unidirectional graphite fibers in an organic matrix, said fibers being adhesively bonded together, said strands being adhesively bonded together, a first portion of said reinforcing members being aligned in said casting in a direction to oppose tensile stress on said casting, said first portion of said reinforcing members being spaced from one another, and a second portion of said reinforcing members being embedded in said casting transverse and adjacent to said first portion of said reinforcing members, said second portion of said reinforcing members being spaced from one another, said reinforcing members being adhesively bonded to said casting by said organic matrix.
Dependencies are inferred from the claim text.