Adhesive bonding and miscellaneous chemical manufacture – Methods – Surface bonding and/or assembly therefor
Patent
1989-11-17
1991-06-04
Weston, Caleb
Adhesive bonding and miscellaneous chemical manufacture
Methods
Surface bonding and/or assembly therefor
4234471, 4234472, 4234475, B32B 3106
Patent
active
050211072
ABSTRACT:
A process for joining or coating carbon-carbon composite components. For joining such components, surfaces of two components are prepared so that they match. An interlayer comprised of a material having a melting point in excess of 2500.degree. F. is sandwiched between the two surfaces and the assembly is held together under compression while it is heated to a temperature sufficient to melt the interlayer material or to a temperature sufficient to cause interdiffussion between the interlayer and the carbon-carbon composite material. In a preferred embodiment of this invention the interlayer material is a carbide former. For example, if zirconium is chosen as the interlayer material, a joint can be prepared at a temperature of 3400.degree. F. which will retain its strength to temperatures in excess of 4350.degree. F. If the second surface is a removable backing, the interlayer provides a coating of the surface of the carbon-carbon composite component.
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Ross John R.
Weston Caleb
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