Powder metallurgy processes – Powder metallurgy processes with heating or sintering – Powder pretreatment
Reexamination Certificate
2011-07-12
2011-07-12
Ward, Jessica L (Department: 1735)
Powder metallurgy processes
Powder metallurgy processes with heating or sintering
Powder pretreatment
C075S228000, C075S255000, C075S343000, C075S392000
Reexamination Certificate
active
07976775
ABSTRACT:
Disclosed is a binary aluminum alloy powder sintered material which comprises aluminum and iron, which has a completely crystalline microstructure comprising an aluminum matrix and an α-Al phase and at least any one phase of an Al6Fe phase or an Al13Fe4phase mixed in the aluminum matrix as nanocrystalline phases, and which has an extremely high strength and a well-balanced high ductility, though being free from any rare earth element.
REFERENCES:
patent: 4-26742 (1992-01-01), None
patent: 05331586 (1993-12-01), None
patent: 6-145921 (1994-05-01), None
patent: 7-258702 (1995-10-01), None
patent: 8-283921 (1996-10-01), None
English Computer Translation of JP05331586A.
International Search Report issued Jun. 24, 2008 in International (PCT) Application No. PCT/JP2008/055602.
Hono Kazuhiro
Mukai Toshiji
Sasaki Taisuke
National Institute for Materials Science
Saad Erin B
Ward Jessica L
Wenderoth , Lind & Ponack, L.L.P.
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