ATOMIZED PICOSCALE COMPOSITE ALUMINUM ALLOY AND METHOD THEREFOR
摘要
The invention is a process for manufacturing a nano aluminum/alumina metal matrix composite and composition produced therefrom. The process is characterized by providing an aluminum powder having a natural oxide formation layer and an aluminum oxide content between about 0.1 and about 4.5 wt.% and a specific surface area of from about 0.3 and about 5. Om<SUP>2</SUP>/g, hot working the aluminum powder, and forming a superfine grained matrix aluminum alloy. Simultaneously there is formed in situ a substantially uniform distribution of nano particles of alumina. The alloy has a substantially linear property/temperature profile, such that physical properties such as strength are substantially maintained even at temperatures of 250°C and above.
申请公布号
WO2008063708(A3)
申请公布日期
2008.09.12
申请号
WO2007US71233
申请日期
2007.06.14
申请人
METAMIC, LLC;HAYNES, THOMAS, G.;WALCHER, MARTIN;BALOG, MARTIN