New Trends in the High Efficiency Motors Market Utilizing Amorphous and Nanocrystalline Soft Magnetic Materials

Eric Theisen, Director of Research & Development, Metglas, Inc.

Here we update the status of the advances in Fe-based amorphous and nanocrystalline soft magnetic alloys currently used in the market and highlight their primary industrial applications.  Emerging trends with electric motors utilize these advancements fabrication methods.  There are many approaches to incorporate amorphous ribbon into the motor components and we will discuss the methods that have been industrially adopted.  FeCo based amorphous alloys further enhance the induction levels (1.8T) and can be viable in these applications.  There are also new FeCo and FeNi nanocrystalline alloys being developed specifically suited towards motor applications that will be discussed.  

Eric Theisen currently is the Director of Research and Development  at Metglas, Inc. and is responsible for commercializing new products in the field of rapidly quenched, amorphous and nanocrystalline materials with eight international patents in the field. He currently serves as an Adjunct Professor of Chemical and Bimolecular Engineering Department at Cornell University and co-advises two PhD students.  He is a member of the Minerals Metals and Materials Society, the American Society for Metals, International, the American Welding Society, the Institute of Electrical and Electronics Engineers and the American Physical Society.  He is the past recipient of the University of Florida Scholars Fellowship, the Kodak Graduate Research Fellowship, the Edna O and William C. Hooey Prize for Outstanding Performance in Research leading to the PhD degree, the Henry Marion Howe Medal for Paper of Highest Merit published in Metallurgical and Materials Transactions 2007, the Hitachi President’s Award for New Product Development 2012: Amorphous Alloy for High Performance Transformer and an R&D 100 Award for Cobalt-Based Nanocrystalline Alloys for Gapless Inductor and Sensor Applications in 2019. 

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