Determination of crystallization conditions of nano-crystalline soft magnetic ribbons

ORAL

Abstract

Many soft magnetic nano-crystalline materials exhibit properties of high magnetic induction, low coercivity and low losses. These properties are key for many electrical device applications in the frequency range of 15-30 kHz. The material obtained for the current study belongs to the Finemet family FeCuNbSiB and was grown as amorphous ribbons using rapid solidification methods. The amorphous ribbons are crystallized into the nano-crystalline state through suitable heat treatment. This presentation will describe studies for determining appropriate heat treat conditions using temperature dependent x-ray crystallography, magnetization tests and micro-structural analysis.

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Authors

  • William H. Rauckhorst

    Gothenburg University, Denison University, Bowling Green State University, NASA Glenn Research Center, Ohio Wesleyan University, Nitronex Corporation, 2305 Presidential Drive, Durham, NC, AFRL/MLPS, Wright-Patterson AFB, OH, Miami University, Ursinus College, Purdue University Calumet, GSI, Florida State University, Carnegie Mellon University, Dept. of Health Sciences, Cleveland State University, Physics Dept., Cleveland State University, University of Rochester, OMI College of Applied Science, University of Cincinnati, Davis and Elkins College, WV, Schlumberger-Doll, Korea Institute of Science and Technology, University of Cincinnati, Lock Haven University of Pennsylvania, Oak Ridge National Laboratory, Oak Ridge, TN 37831-6372, Albion College, Albion, MI 49224, University of Toledo, Toledo, OH 43606, Youngstown State University, Joint Institute for Nuclear Research (Dubna), Naval Research Laboratory, ManTech SRS Technologies, Inc., Ecopulse, Inc., Army Research Laboratory, University of Surrey, The Ohio State University, Univ. Akron, Owens Community College, Toledo, OH