The Origin and Enhancement of the Ferromagnetic Coercivity of Sm2(Co,Fe,Cu,Zr,Cr) sub 17 Alloys.

Abstract

The technique of Mossbauer Spectroscopy and Nuclear Resonance has been used to measure the hyperfine field, the electric quadupole moment, and the isomer shift of the iron nucleus, the cobalt nucleus, and the samarium mucleus in the presence of different local environments caused by (a)the addition and deletion of various constiuents, and (b) by different heat treatments of the Sm2(Co,Cu,Fe,Zr,Cr) alloys. This was done in order to understand the role of the various substituents and of the metallurgical treatment with a view to gaining insight concerning optimum procedures for the production of improved permanent magnets. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Oct 01, 1982
Accession Number
ADA120889

Entities

People

  • David I. Paul

Organizations

  • Columbia University

Tags

Communities of Interest

  • Energy and Power Technologies
  • Human Systems

DTIC Thesaurus Topics

  • Band Structures
  • Coercivity
  • Diffusion
  • Domain Walls
  • Frequency
  • Heat Treatment
  • Intensity
  • Magnetic Fields
  • Magnetic Properties
  • Magnets
  • Materials
  • Materials Science
  • Metals
  • Permanent Magnets
  • Precipitation
  • Resonance
  • Transition Metals

Fields of Study

  • Physics

Readers

  • Quantum spin resonance or Electron Paramagnetic Resonance spectroscopy.
  • Superconducting Magnet Technology
  • Systems Analysis and Design