Journal ArticleDOI
Magnetic domain structure of sintered Fe-Nd-B type permanent magnets and magnetostatic grain interaction
Reads0
Chats0
TLDR
In this article, the magneto-optical Kerr effect was used to investigate the domain width of Fe 14 Nd 2 B single crystal plates with different thicknesses and of grains of FeNdB-sintermagnets.About:
This article is published in Journal of Magnetism and Magnetic Materials.The article was published on 1991-10-01. It has received 16 citations till now. The article focuses on the topics: Magnetic domain & Single domain.read more
Citations
More filters
Journal ArticleDOI
Grain boundary and interface chemistry of an Nd–Fe–B-based sintered magnet
TL;DR: In this paper, the compositions of grain boundaries (GBs) and other interfaces surrounding Nd 2 Fe 14 B sintered magnets have been investigated by laser-assisted three-dimensional atom probe to understand the mechanism of the coercivity enhancement by post-sinter annealing.
Journal ArticleDOI
Permanent magnets based on R-Fe-B and R-Fe-C alloys
TL;DR: In this article, the basic properties of 2:14:1 hard magnetic phases as well as technological procedures used for manufacturing R-Fe-B and R- Fe-C permanent magnets are given.
Journal ArticleDOI
Interactive and cooperative magnetization processes in hard magnetic materials
Helmut Kronmüller,Thomas Schrefl +1 more
TL;DR: In this article, a universal relation was derived for the coercive field of permanent magnets as produced by sintering, melt-spinning or mechanical alloying, and it was shown that the magnetic anisotropies in individual grains can be modelled at three different scales: the atomistic level, the nanomagnetic level and the micromagnetic level.
Journal ArticleDOI
The role of exchange and dipolar coupling at grain boundaries in hard magnetic materials
TL;DR: In this article, a finite element formulation of the micromagnetic problem is used to minimize the total magnetic Gibbs free energy of interacting magnetic particles in the framework of an adaptive mesh refinement scheme.
Journal ArticleDOI
Investigations of the domain structure of anisotropic sintered Nd–Fe–B-based permanent magnets
TL;DR: The magnetic structure of anisotropic sintered Nd-Fe-B-based permanent magnets of different chemical compositions has been studied by the conventional Bitter pattern technique, the colloid-scanning electron microscopy (SEM) method, magnetic force microscopy and the type-I magnetic contrast of SEM as discussed by the authors.
References
More filters
Journal ArticleDOI
Theory of the structure of ferromagnetic domains in films and small particles
TL;DR: In this article, the authors present a review of the Physical review, vol. 70, nos. 11 and 12, 965-971, Dec. 1 and 15, 1946.
Journal ArticleDOI
Theory of Nucleation Fields in Inhomogeneous Ferromagnets
TL;DR: In this paper, the effect of the microstructure on the coercive field of sintermagnets is investigated on the basis of the theory of micromagnetism, and the eigenvalues of the nucleation fields are derived as a function of the width and the strength of planar magnetic inhomogeneities.
Journal ArticleDOI
Determination of intrinsic magnetic material parameters of Nd2Fe14B from magnetic measurements of sintered Nd15Fe77B8 magnets
K.-D. Durst,Helmut Kronmüller +1 more
TL;DR: In this paper, the magnetic anisotropy constants of Nd 2 Fe 14 B have been determined in the temperature range between 4.2 and 575 K using aligned sintered Nd 15 Fe 77 B 8 magnets.
Journal ArticleDOI
Zur Theorie der zweiphasigen Domänenstrukturen in Supraleitern und Ferromagneten
TL;DR: In this article, the authors investigate the domain structures in superconducting and uniaxial ferromagnetic plates of infinite dimensions and show that the domain width at the surface turns out to be much smaller than in the interior.
Journal ArticleDOI
Zur bestimmung der blochwandenergie von einachsigen ferromagneten
R. Bodenberger,A. Hubert +1 more