Method for joining carbon-carbon composites to metals

Patent · Wed Jan 01 04:00:00 EST 1997

OSTI ID:871049

Lauf, Robert J ^[1]; McMillan, April D ^[2]; Moorhead, Arthur J ^[2]

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1. Oak Ridge, TN
2. Knoxville, TN

A method for joining carbon-carbon composites to metals by brazing. Conventional brazing of recently developed carbon-bonded carbon fiber (CBCF) material to a metal substrate is limited by the tendency of the braze alloy to "wick" into the CBCF composite rather than to form a strong bond. The surface of the CBCF composite that is to be bonded is first sealed with a fairly dense carbonaceous layer achieved by any of several methods. The sealed surface is then brazed to the metal substrate by vacuum brazing with a Ti-Cu-Be alloy.

• Research Organization: LOCKHEED MARTIN ENRGY SYST INC
• DOE Contract Number: AC05-84OR21400
• Assignee: Lockheed Martin Energy Systems, Inc. (Oak Ridge, TN)
• Patent Number(s): US 5648180
• OSTI ID: 871049
• Country of Publication: United States
• Language: English

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