Patent ID: 9364936
Filing Date: 2016-06-14
CPC Classification: B22F,B24D,C22C,E21B

Claim Text:
1. A composite material comprising: a product of heating a mixture to a temperature above a melting point of an infiltrant and below a melting point of a second binder, wherein the mixture comprises: a first pre-infiltrated hardphase constituent comprising a first porous carbide having a first binder disposed therein; at least a second partially sintered pre-infiltrated hardphase constituent, wherein the second pre-infiltrated hardphase constituent comprises a second porous carbide and at least about 15 weight % to about 25 weight % of the second binder wherein the second pre-infiltrated hardphase constituent comprises at least about 1% porosity, wherein the second pre-infiltrated hardphase constituent has a smaller average particle size than the first pre-infiltrated hardphase constituent; and the infiltrant, wherein the melting point of the infiltrant is below the melting point of the second binder; wherein the composite material comprises a disintegrated particulate structure of the second pre-infiltrated hardphase constituent, wherein the disintegrated particulate structure comprises a plurality of particulates formed from the disintegrated second pre-infiltrated hardphase constituent directly embedded in the infiltrant, and wherein the plurality of particulates have a size of 20% or less of the second pre-infiltrated hardphase constituent, and wherein the composite material comprises a plurality of localized uniform hard phase regions disposed within the interstitial spaces between the larger first pre-infiltrated hardphase constituent in the infiltrant, wherein the plurality of localized uniform hard phase regions are formed from the disintegrated particulate structures of the second pre-infiltrated hard phase constituent.