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Intermetallic articles of manufacture having high room temperature ductility

United States Patent Application

20050274439
A1
View the Complete Application at the US Patent & Trademark Office
Ames Laboratory - Visit the Iowa State University Research Foundation - Office of Intellectual Property & Technology Transfer Website
Article of manufacture fabricated by plastic deformation of an intermetallic compound comprising R and M, such as an RM intermetallic compound and a higher order compound thereof, having a CsCl-type ordered crystal structure wherein R is one or more rare earth elements and M is one or more non-rare earth metals. The article of manufacture has a tensile elongation of at least about 5% prior to fracture when tensile tested at room temperature in ambient air. The article of manufacture also can be fabricated by plastic deformation of an intermetallic compound comprising a M'M compound and a higher order compound thereof having a CsCl-type ordered crystal structure wherein M' and M are one or more different non-rare earth metals.
Gschneidner, Karl A. JR. (Ames, IA), Tsokol, Alexandra O. (Ames, IA), Pecharsky, Vitalij K. (Ames, IA), Russell, Alan M. (Ames, IA)
Iowa State University Research Foundation, Inc.
11/ 120,547
May 3, 2005
[0002] The United States Government has rights in this invention pursuant to Contract No. W-7405-Eng-82 between the Department of Energy and Iowa State University.