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High Performance, Light weight Thermoplastic/Rare Earth Alloy Magnets

Published online by Cambridge University Press:  21 February 2011

Jun Xiao  and
Joshua U. Otaigbe
Jun Xiao
Affiliation:
Department of Materials Science and Engineering
Joshua U. Otaigbe
Affiliation:
Department of Materials Science and Engineering Department of Chemical Engineering Iowa State University of Science and Technology, Ames, IA 50010
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Abstract

We report progress on our exploratory research on surface modification of magnetic NdFeB fillers, characterization of suitable magnetic rare earth alloy powders and high-performance polymer matrices, processability, and properties of novel thermoplastic/NdFeB magnets. The results suggest that blending liquid crystal polymer (LCP) with a high-thermoplastic polymer such as polyphenylene sulfide (PPS) provides the required balance of properties. These properties include superior magneto-mechanical performance, minimal melt viscosity at optimal NdFeB volume loading, enhanced thermal stability, high stiffness, high strength, improved dimensional stability, and excellent chemical resistance; making the thermoplastics magnets suitable for use in high temperature and aggressive environments where commercial polymer-bonded magnets are not useable.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 577: Symposium H – Advanced Hard and Soft Magnetic Materials , 1999 , 75
Copyright
Copyright © Materials Research Society 1999

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References

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