Boring or penetrating the earth – Bit or bit element – Specific or diverse material
Reexamination Certificate
2010-09-03
2011-12-13
King, Roy (Department: 1733)
Boring or penetrating the earth
Bit or bit element
Specific or diverse material
C175S374000, C075S236000, C075S249000, C164S097000, C164S098000
Reexamination Certificate
active
08074750
ABSTRACT:
Earth-boring tools for drilling subterranean formations include a particle-matrix composite material comprising a plurality of silicon carbide particles dispersed throughout a matrix material, such as, for example, an aluminum or aluminum-based alloy. In some embodiments, the silicon carbide particles comprise an ABC-SiC material. Methods of manufacturing such tools include providing a plurality of silicon carbide particles within a matrix material. Optionally, the silicon carbide particles may comprise ABC-SiC material, and the ABC-SiC material may be toughened to increase a fracture toughness exhibited by the ABC-SiC material. In some methods, at least one of an infiltration process and a powder compaction and consolidation process may be employed.
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Choe Heeman
Eason Jimmy W.
Overstreet James L.
Stevens John H.
Westhoff James C.
Baker Hughes Incorporated
King Roy
Mai Ngoclan
TraskBritt
LandOfFree
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