New Iron Nitride Soft Magnetic Components
Todd Monson, Principal Member of the Technical Staff, Sandia National Laboratories

The γ’-Fe4N phase of iron nitride can open up new operational regimes in power electronics, transformers of all sizes, and electrical machines. With a magnetization slightly greater than silicon steel and an electrical resistivity several of orders of magnitude higher than electrical steel, iron nitride can increase overall efficiency while maintaining or even improving power density in a wide range of devices. In high frequency applications, such as wide bandgap based power electronics, iron nitride can be used as a new active material in extremely low loss, yet high magnetization, inductor cores.  Approaches to fabricate and implement both bulk and composite iron nitride soft magnetic devices will be discussed.

Todd Monson is a Principal Member of the Technical Staff at Sandia National Laboratories, where for the past 15 years his research has focused primarily on the synthesis and characterization of ferromagnetic and ferroelectric nanomaterials for energy related applications. Todd holds a Ph.D. and M.A. in physics from the University of Texas at Austin. Prior to coming to Sandia, Todd served as a physicist in the Air Force for over seven years, working at the Air Force Research Laboratory’s Munitions Directorate and serving as an assistant professor of physics at the U.S. Air Force Academy. Todd received his commission in the U.S. Air Force after graduating with a B.S. in physics from the U.S. Naval Academy.  

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