A method of bonding two carbon/carbon composite pieces or a carbon/carbon composite piece and a graphite/aluminum metal matrix composite piece together by (1) forming a uniform coating of molten AgNO3 on the surfaces to be bonded at a temperature above the melting point of AgNO3 but below the decomposition temperature of AgNO3; (2) placing the molten AgNO3 coated surfaces to be bonded into contact with each other; (3) decomposing the molten AgNO3 to form a silver metal layer bonding the pieces together. If a graphite/aluminum metal matrix composite piece is being bonded, a silver diffusion step may be added at the end of the process to strengthen the silver bond to the metal cladding or metal matrix of the metal matrix composite piece.
Patent, Filed 1 Jul 91, patented 31 Mar 92
31 MAR 1992
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