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Permanent Magnet Materials

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Abstract

Five major classes of permanent magnet materials are available for engineered devices. The magnetic and other physical properties of appropriate subgrades are listed for applications. Hard ferrite and samarium-cobalt magnets are compared to the newest and, in some ways, best material in production today—neodymium/iron/boron. The magnetic and physical properties, availability and relative costs of appropriate subgrades are presented.

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Authors
  1. Melvin A. Bohlmann
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Additional information

Editor’s Note: This paper is based on the paper “Available and New Permanent Magnet Materials” by M. Bohlmann appearing in 17th Electrical/Electronics Insulation Conference, Boston, MA, September 30–October 3, 1985.

Melvin A. Bohlmann received his MA in Mathematics and History from Valparaiso University in 1967. He is currently Vice President with IG Technologies, Inc., in Valparaiso, Indiana.

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Bohlmann, M.A. Permanent Magnet Materials. JOM 38, 37–40 (1986). https://doi.org/10.1007/BF03257953

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  • DOI: https://doi.org/10.1007/BF03257953

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