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Soft magnetic phase nanoparticles preparations and associated methods thereof

United States Patent

February 2, 2016
View the Complete Patent at the US Patent & Trademark Office
A method of synthesizing magnetic nanoparticles comprising soft magnetic phases is provided, wherein the method comprises degassing a first mixture at a temperature in a range from about C. to C. The first mixture comprises a solvent, a compound comprising iron, cobalt, or combinations thereof dissolved in the solvent, and an organic component comprising a fatty acid or an amine. Degassing the first mixture is followed by adding a capping ligand to the first mixture under inert atmosphere to form a second mixture; adding a reducing agent to the second mixture at a temperature in a processing temperature range from about C. to about C. to form a third mixture; and incubating the third mixture at a temperature within the processing temperature range to form nanoparticles comprising a soft magnetic phase.
Kandapallil; Binil Itty Ipe (Mechanicville, NY), Colborn; Robert Edgar (Niskayuna, NY), Bonitatibus, Jr.; Peter John (Saratoga Springs, NY), Johnson; Francis (Clifton Park, NY)
General Electric Company (Niskayuna, NY)
13/ 788,218
March 7, 2013
STATEMENT OF GOVERNMENT INTEREST This invention was made with Government support under grant number DE-AR0000158 awarded by the Advanced Research Projects Agency-Energy (ARPA-E). The Government has certain rights in the invention.