Investigation for Low-Cost Permanent Magnets.

Abstract

This work focused on the search for materials and processing techniques that provide the potential of low-cost, high performance permanent magnets. The principal processing method was rapid solidification and annealing. Crystallized amorphus alloys of Fe, Co, Ni and glass formers exhibited coercivities of several hundered oerstads. A coercive force, H sub ci, of 960 Oe was attained in Fe65V15P10B10 and 3,200 Oe in Cu15Co60Si15B10. Alloys containing Pr or Nd with Fe and B exhibited very high H sub ci (over 20,000 Oe). These alloys are particularly attractive because of their high coercivity and magnetization, the absence of Co, and the relatively low content of the abund light rare earths. Additional keywords: Microstructure; Magnetic materials; Anisotropy; Magnetic properties.

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Document Details

Document Type
Technical Report
Publication Date
Mar 01, 1985
Accession Number
ADA154387

Entities

People

  • J. J. Becker

Organizations

  • General Electric

Tags

Communities of Interest

  • Advanced Electronics

DTIC Thesaurus Topics

  • Annealing
  • Coercivity
  • Curie Temperature
  • Ferrites
  • Fiber Spinning
  • Heat Treatment
  • Laboratory Magnetometers
  • Magnetic Fields
  • Magnetic Materials
  • Magnetic Phenomena
  • Magnetic Properties
  • Magnetization
  • Materials
  • Measurement
  • New York
  • Phase
  • Rare Earth Alloys

Readers

  • Materials Science and Engineering.
  • Superconducting Magnet Technology