Correlation between microstructure and magnetic properties in FeNdB permanent magnets doped with Al2O3

L. Kiss, G. Martinek, A. Forkl, H. Kronmueller

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

Two-phase sintered magnets composed of the hard magnetic Fe14Nd2B and a Nd-rich nonmagnetic phase were produced doping the master alloy Fe73.5Nd20B6.5 with 1.48 mass% Al2O3. By measuring the temperature dependence of the coercive field, the effect of microstructure on the coercive field can be quantitatively analysed. In particular it can be shown that with increasing grain size, the demagnetization effects originating from local stray fields increase whereas the surface quality of the grains is improved.

Original languageEnglish
Pages (from-to)685-691
Number of pages7
JournalPhysica Status Solidi (A) Applied Research
Volume114
Issue number2
Publication statusPublished - Aug 1989

Fingerprint

Demagnetization
permanent magnets
Permanent magnets
Surface properties
Magnets
Magnetic properties
Doping (additives)
magnetic properties
microstructure
Microstructure
demagnetization
magnets
grain size
Temperature
temperature dependence

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Cite this

Correlation between microstructure and magnetic properties in FeNdB permanent magnets doped with Al2O3. / Kiss, L.; Martinek, G.; Forkl, A.; Kronmueller, H.

In: Physica Status Solidi (A) Applied Research, Vol. 114, No. 2, 08.1989, p. 685-691.

Research output: Contribution to journalArticle

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