Primary Inventor: Thomas G. Haynes III
Contributing Inventor(s): Martin Walcher, Martin Balog
Date of Patent Issuance: February 12, 2019
Equipment Type: METAMIC HT
Docket Number: HOL-045
Application Number: 15/413,818
Patent Number(s): US 10,202,674 B2
Prior Publication Data: US 2017/0130302 A1, May 11, 2017
Related U.S. Application Data:
- Continuation of application No. 14/630,141, filed on January 24, 2017, published as US 2015/0322548 A1, and now Patent No. US 9,551,048 B2.
- Continuation of application No. 13/705,012, filed on December 4, 2012, now Patent No. US 8,961,647 B2, which is a continuation of application No. 12/312,089, filed as application No. PCT/US2007/071233 on June 14, 2007, published as US 2010/0028193 A1, now Patent 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.