Powder metallurgy processes – Powder metallurgy processes with heating or sintering – Powder pretreatment
Reexamination Certificate
2004-11-12
2008-08-12
King, Roy (Department: 1793)
Powder metallurgy processes
Powder metallurgy processes with heating or sintering
Powder pretreatment
C419S041000, C419S048000, C419S049000
Reexamination Certificate
active
07410610
ABSTRACT:
An article made of constituent elements is prepared by furnishing at least one nonmetallic precursor compound, wherein all of the nonmetallic precursor compounds collectively contain the constituent elements. The constituent elements include a titanium-base metallic composition, boron present at a level greater than its room-temperature solid solubility limit, and, optionally, a stable-oxide-forming additive element present at a level greater than its room-temperature solid solubility limit. The precursor compounds are chemically reduced to produce a material comprising a titanium-base metallic composition having titanium boride particles therein, without melting the titanium-base metallic composition. The titanium-base metallic composition having the titanium boride particles therein is consolidated without melting.
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Gigliotti Michael Francis Xavier
Ott Eric Allen
Shamblen Clifford Earl
Turner Alan Glen
Utah David Alan
General Electric Company
King Roy
Mai Ngoclan T.
McNees Wallace & Nurick LLC
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