Systems and methods for forming a layer onto a surface of a solid substrate and products formed thereby
AssigneeAts Mer, LLC
InventorsLori Bracamonte, James Withers, Jowie Abcede
Life of this patent
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Abstract
A method for forming a vehicular brake rotor involving loading a shaped metal substrate with a mixture of metal alloying components and ceramic particles in a dieheating the contents of the die while applying pressure to melt at least one of the metal components of the alloying mixture whereby to densify the contents of the die and form a ceramic particle-containing metal matrix composite coating on the metallic substrate; and cooling the resulting coated product.
Claims17
A method for-forming a metal/ceramic composite coating friction surface layer bonded to a solid metal or metal alloy substrate in the form of a hub-disc assembly, the method comprising:
- loading a mixture of a ceramic particulate and two or more reactive metals in powder form, on a surface of a solid metal or alloy substrate, contained within a mold, wherein at least one of the reactive metals has a melting point lower than a melting point of the solid metal or alloy substrate, and the ceramic particulate comprises silicon carbide particles;
- closing the mold, evacuating air from the mold, and raising a temperature within the mold while raising a pressure within the mold, so as to at least partially melt a reactive metal of the mixture in the mold;
- enabling a reaction involving the reactive metals while maintaining a pressure within the mold whereby to densify contents of the mold during at least a portion of the reaction;
- and
- cooling the contents of the mold to form a metal/ceramic composite coating friction surface layer on the substrate without any intervening layer between the substrate and the coating, whereby to increase friction and enhance wear resistance of the surface of the metal substrate.
Dependencies are inferred from the claim text.