Powder metallurgy processes – Powder metallurgy processes with heating or sintering – Metal and nonmetal in final product
Reexamination Certificate
2007-11-20
2007-11-20
Wyszomierski, George (Department: 1742)
Powder metallurgy processes
Powder metallurgy processes with heating or sintering
Metal and nonmetal in final product
C419S066000
Reexamination Certificate
active
10738275
ABSTRACT:
A simple method to produce Aluminum Metal Matrix Nanocomposite with 2 to 35 volume percent of nano Al2O3reinforcement phase without adding nano Al2O3particles in a direct step of the metal matrix. The initial necessary material is an aluminum powder with nanoscale surface oxide. The volume percent of Al2O3is determined by the particle size distribution and the thickness of the Al2O3layer. The Al2O3surface layers or shells are broken up and are uniformly distributed throughout the nanocomposite after the powder consolidation into billet and the hot and/or cold metal working of the billet.
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Harrigan, Jr. William C.
Peng Jack Y.
van den Bergh Mark
Chen Tony D.
DWA Technologies, Inc.
Rozsa Thomas I.
Wyszomierski George
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