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Low-Cost Precursor for Synthesis of High Coercivity Fe-N Magnets

United States Patent Application

20160379741
A1
View the Complete Application at the US Patent & Trademark Office
Oak Ridge National Laboratory - Visit the Partnerships Directorate Website
The disclosure describes a method of producing iron nitride magnets using Zn-doped iron oxide precursors. The iron oxide precursors are reduced and nitrided to produce a powder containing iron nitride in the Fe.sub.16N.sub.2 phase. The inclusion of Zn in the iron oxide precursor enhances the magnetic properties of the iron nitride powder.
Allard, JR., Lawrence Frederick (Knoxville, TN), Brady, Michael P. (Oak Ridge, TN), Bridges, Craig A. (Knoxville, TN), Lara-Curzio, Edgar (Lenoir City, TN), Moon, Ji Won (Oak Ridge, TN), Rios, Orlando (Knoxville, TN), Sankar, Suryanarayan G. (Pittsburgh, PA), Zande, Brian (Pittsburgh, PA)
Advanced Materials Corporation (Pittsburgh PA)
15/ 194,194
June 27, 2016
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH [0002] This invention was made with Government support under DE-AC05-00OR22725 and DE-AR00-000645 awarded by the U.S. Department of Energy. The Government has certain rights in this invention.