Primary Inventor: Thomas G. Haynes III
Contributing Inventor(s): Martin Walcher, Martin Balog
Date of Patent Issuance: Jun. 9, 2020
Status: Granted
Jurisdiction: US
Assignee: Tecnium, LLC
Equipment Type: METAMIC-HT
Docket NumberHOL-045
Application Number: 16/273,522
Patent Number: US 10,676,805 B2

Prior Publication Data: US 2019/0169719 A1 – Jun. 6, 2019

European Patent: 2081713

Related U.S. Application Data:

  • Continuation of application No. 15/413,818, filed on Jan. 24, 2017, now Pat. No.  US 10,202,674 B2, which is continuation of application No. 14/630,141, filed on Feb. 24, 2015, now Pat. No. US 9,551,048 B2, which is a continuation of application No. 13/705,012, filed on Dec. 4, 2012, now Pat. No. US 8,961,647 B2, which is a continuation of application No. 12/312,089, filed as application No. PCT/US2007/071233 on Jun. 14, 2007, now Pat. No. US 8,323,373 B2.
  • Provisional application No. 60/854,725, filed on October 27, 2006.

Abstract: 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 m2/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 DEG C. and above.