Composition for making metal matrix composites

Details Composition for making metal matrix composites Composition for making metal matrix composites

C - Chemistry, Metallurgy

22

C

C22C 1/10 (2006.01) C22C 49/04 (2006.01) C23C 16/06 (2006.01) C23C 16/22 (2006.01)

Patent

CA 2521499

In one embodiment, a composition (10) to be mixed with a molten metal to make a metal matrix composite, the composition characterized by: a ceramic reinforcing filler (12), the ceramic reinforcing filler not being wettable by molten aluminum and/or not being chemically stable in molten aluminum, the ceramic reinforcing filler being coated with a ceramic material, the ceramic material being wettable by and chemically stable in molten aluminum. In a related embodiment, a composition (20) to make a porous preform to be infiltrated by molten metal to make a metal matrix composite, the composition characterized by: a ceramic reinforcing filler (23), the ceramic reinforcing filler not being wettable by molten aluminum, the ceramic reinforcing filler being coated with a ceramic material (22) and optionally with a metal (21) such as nickel, the ceramic material being wettable by molten aluminum. The ceramic material can be coated on the ceramic reinforcing filler by a vacuum deposition technique such as vacuum sputtering.

L'invention porte dans une exécution sur une composition (10) se mélangeant à du métal en fusion pour obtenir un composite à matrice métallique. Ladite composition comprend: une charge céramique de renfort (12) non mouillable par l'aluminium fondu et/ou ni chimiquement stable dans l'aluminium fondu, et revêtue d'un matériau céramique mouillable par l'aluminium fondu et stable dans l'aluminium fondu. L'invention porte également dans une autre exécution, sur une composition (20) permettant de réaliser une préforme poreuse devant être infiltrée par un métal fondu en vue de l'obtention d'un composite à matrice métallique. Ladite composition comprend: une charge céramique de renfort (23), non mouillable par l'aluminium fondu, revêtue d'un matériau céramique (22) mouillable par l'aluminium fondu, et facultativement d'un métal tel que le nickel. Le matériau céramique peut être déposé sur la charge de renfort par une technique de dépôt sous vide telle que la pulvérisation cathodique.

Affiliated with

Also associated with

Rating

Composition for making metal matrix composites does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Composition for making metal matrix composites, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Composition for making metal matrix composites will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1746323