Fibre-reinforced metal panels and production thereof Patent #: 4141802
ApplicationNo. 06/224869 filed on 01/14/1981
US Classes:427/404, Metal coating427/305, Nickel, copper, cobalt, or chromium coating427/433, Lead, zinc, or tin coating (e.g., galvanizing, etc.)427/443.1, Chemical compound reducing agent utilized (i.e., electroless deposition)428/614, Laterally noncoextensive components (e.g., embedded, etc.)428/634Free carbon containing component
ExaminersPrimary: Kendall, Ralph S.
Attorney, Agent or Firm
International ClassesC22C 47/00 (20060101)
C22C 47/08 (20060101)
D01F 11/12 (20060101)
D01F 11/00 (20060101)
AbstractThe present invention comprises a process of preparing metal matrix composites which are reinforced by ceramic or graphite fibers, wherein the fibers are pretreated; first by a nickel coating, then by a second coating which is sacrificed when the fibers are ultimately immersed in a liquid metallic bath which becomes the matrix of the composite material formed. Usually the second coating is copper.In addition, a third coating on the fibers comprising a noble metal such as silver may also be used for certain matrix metal materials. Preferably the thickness of the nickel coating is a minimum of 0.5 micrometers and the second sacrificial coating is a minimum of 0.5 micrometers. After the fibers have been coated with the two or more successive coatings, they are incorporated into a metal matrix composite material by immersion in a molten bath of the desired matrix metal, or by placing the fibers in a suitable mold and casting the molten metal matrix around them, or by other suitable means. This may be done under ordinary atmospheric conditions without the use of vacuum or a protective atmosphere.