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PD IEC/TR 62517:2009

Current

Current

The latest, up-to-date edition.

Magnetizing behaviour of permanent magnets

Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

07-04-2009

FOREWORD
INTRODUCTION
1 Scope
2 Effective magnetizing field strength
3 Initial magnetization state
4 Magnetizing behaviour of permanent magnets
  4.1 General
  4.2 Nucleation type magnets, sintered Ferrites, RE-Fe-B,
      SmCo[5]
      4.2.1 General
      4.2.2 Initial magnetization curve after final heat
            treatment
      4.2.3 Approach to saturation after final heat treatment
      4.2.4 Coercivity mechanism of nucleation type magnets
      4.2.5 Reversing the magnetization after magnetic
            saturation
  4.3 Pinning type magnets, Sm[2]Co[17]
      4.3.1 General
      4.3.2 Initial magnetization curve
      4.3.3 Approach to saturation
      4.3.4 Coercivity mechanism of pinning type magnets
  4.4 Single domain particle magnets
      4.4.1 General
      4.4.2 Single domain particle magnets based on
            magnetocrystalline anisotropy
      4.4.3 Alnico and CrFeCo magnets
5 Conclusions
Bibliography

Defines the magnetizing behaviour of permanent magnets in detail.

IEC/TR 62517:2009(E) describes the magnetizing behaviour of permanent magnets in detail covering:
- the relationship between the applied magnetic field strength and the effectively acting internal field strength;
- the initial state prior to magnetization;
- the magnetizing behaviour of all common types of permanent magnets subdivided according to the dominant coercivity mechanisms, namely the nucleation type for sintered Ferrites, RE-Fe-B and SmCo5 magnets, the pinning type for carbon steel and Sm2Co17 magnets and the single domain type for nano-crystalline RE-Fe-B, Alnico and Cr-Fe-Co magnets;
- the recommended magnetizing field strengths for modern permanent magnets compiled in a comprehensive table.

Committee
ISE/108
DevelopmentNote
Supersedes 07/30164593 DC. (06/2009)
DocumentType
Standard
Pages
24
PublisherName
British Standards Institution
Status
Current
Supersedes

Standards Relationship
IEC TR 62517:2009 Identical

IEC 60404-8-1:2015 Magnetic materials - Part 8-1: Specifications for individual materials - Magnetically hard materials

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