Method for manufacturing open porous metallic foam body

Details Method for manufacturing open porous metallic foam body Method for manufacturing open porous metallic foam body

C - Chemistry, Metallurgy

22

C

C22C 1/08 (2006.01) B22F 3/11 (2006.01)

Patent

CA 2569322

The invention relates to open-pored metallic foam bodies as well as a method for manufacturing thereof. These metallic foam bodies are allowed to be advantageously used with ambient environmental conditions causing a high corrosion to many conventional materials, and accordingly reducing the lifetime thereof frequently. According to the set object, the metallic foam bodies should have a low mass simultaneously with a high specific surface, and increased corrosion resistance under chemically aggressive ambient environmental conditions. An open-pored metallic foam body according to the invention is then developed such that it is formed from a nickel-copper alloy having at least 40 percent by weight of nickel and yet a porosity of at least 90 %.

L'invention concerne des corps ouverts poreux en mousse métallique ainsi que leur procédé de fabrication. Ces corps en mousse métallique offrent l'avantage de pouvoir être utilisés dans des atmosphères très corrosives pour maints matériaux classiques dont la longévité se trouve du coup fréquemment réduite. Selon l'objectif assigné à la recherche, les corps en mousse métallique devraient avoir en même temps une faible masse et un surface spécifique élevée, et présenter une résistance élevée à la corrosion dans des environnements agressifs chimiquement. L'invention porte ainsi sur un corps ouvert, poreux, en mousse métallique fait d'un alliage de nickel-cuivre comprenant au moins 40 % en poids de nickel, pour une porosité d'au moins 90 %.

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