Method of making metal matrix composites

Details Method of making metal matrix composites Method of making metal matrix composites

C - Chemistry, Metallurgy

22

C

C22C 49/00 (2006.01) C22C 47/08 (2006.01) C22C 49/06 (2006.01) H01B 1/02 (2006.01) H01B 5/10 (2006.01)

Patent

CA 2414569

A method for making a continuous, elongated metal composite article is disclosed. The method includes immersing an evacuated plurality of substantially continuous fibers of ceramic boron or carbon into a contained volume of molten metallic matrix material under a vacuum. Then ultrasonic energy is used to cause vibration to permit a portion of the molten metal matrix material to infiltrate into the plurality of fibers at atmospheric pressure. The plurality of fibers are then withdrawn from the volume of material under conditions which permit the material to solidify to provide a continuous, elongated metal composite article comprising a plurality of at least one of substantially continuous, longitudinally positioned ceramic, boron, or carbon fibers in a metal matrix. The article comprises at least 15 percent by volume of the fibers, and has a length of at least 10 meters.

L'invention concerne des procédés de fabrication d'articles composites, à base de matrice métallique, tels que des fils (59) et rubans électriques. Ces composites à matrice métallique comprennent plusieurs fibres (51), sensiblement continues, placées longitudinalement dans une matrice métallique. Les fibres sont choisies dans le groupe constitué par des fibres céramiques, des fibres de bore, des fibres de carbone, et des mélanges de celles-ci.

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