scholarly journals Grain boundary oxide layers in NdFeB-based permanent magnets

2021 ◽  
Vol 199 ◽  
pp. 109417
Author(s):  
A. Mazilkin ◽  
B.B. Straumal ◽  
S.G. Protasova ◽  
S. Gorji ◽  
A.B. Straumal ◽  
...  
Keyword(s):  
Grain Boundary ◽  
Permanent Magnets ◽  
Oxide Layers

A HYBRID MODEL ON HYSTERESIS LOOP AND COERCIVITY IN NANOSTRUCTURED PERMANENT MAGNETS

2006 ◽  
Vol 05 (04n05) ◽  
pp. 627-631 ◽  
Author(s):  
M. J. SUN ◽  
G. P. ZHAO ◽  
J. LIANG ◽  
G. ZHOU ◽  
H. S. LIM ◽  
...  
Keyword(s):  
Thin Films ◽  
Domain Wall ◽  
Grain Boundary ◽  
Magnetic Moment ◽  
Permanent Magnets ◽  
Hysteresis Loops ◽  
Bulk Materials ◽  
Rotational Model ◽  
Moment Distribution ◽  
Coercivity Mechanism

A simplified micromagnetic model has been proposed to calculate the hysteresis loops of nanostructured permanent magnets for various configurations, including thin films, exchange-coupled double-layer systems and bulk materials. The reversal part of the hysteresis is based on the Stoner–Wohlfarth coherent rotational model and the coercivity mechanism is due mainly to the motion of the transition region (a domain wall like magnetic moment distribution in the grain boundary). The elements of nucleation and pinning models are also incorporated.

Magnetism of Nd–Fe films as a model of grain boundary phase in Nd–Fe–B permanent magnets

2015 ◽  
Vol 9 (1) ◽  
pp. 013002 ◽  
Author(s):  
Akimasa Sakuma ◽  
Tsuneaki Suzuki ◽  
Takahiro Furuuchi ◽  
Toshiyuki Shima ◽  
Kazuhiro Hono
Keyword(s):  
Grain Boundary ◽  
Permanent Magnets ◽  
Boundary Phase

scholarly journals Grain boundary plane distribution and its potential correlation with magnetic properties in hexagonal RCo5 permanent magnets

RSC Advances ◽  
2018 ◽  
Vol 8 (40) ◽  
pp. 22429-22436 ◽  
Author(s):  
Xiaokun Yuan ◽  
Dongtao Zhang ◽  
Yuan Ji
Keyword(s):  
Magnetic Properties ◽  
Grain Boundary ◽  
Crystallographic Texture ◽  
Permanent Magnets ◽  
Boundary Plane ◽  
Grain Boundary Plane ◽  
Plane Distribution

The crystallographic texture in permanent magnets should cover not only texture of crystals, but also texture between crystals.

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