Title :
Studies on Nd(Fe0.92-xB0.08 Gax)5.5 sintered permanent magnets
Author :
Grössinger, R. ; Kou, X.C. ; Krewenka, R. ; Kirchmayr, H.R. ; Tokunaga, M.
Author_Institution :
Inst. fuer Experimentalphys., Tech. Univ. Vienna, Austria
fDate :
9/1/1990 12:00:00 AM
Abstract :
The temperature dependence of the hysteresis loop and the anisotropy field HA of sintered magnets of the composition Nd(Fe0.92-xB0.08Gax)5.5 was investigated using pulsed-field equipment. Analysis based on the nucleation model was performed. The spin reorientation temperatures were determined by measurements of the temperature dependence of the initial AC susceptibility χac(T). It is shown that χac (T) curves can be used to determine the temperature where the FOMP (first-order magnetization process) transition starts
Keywords :
boron alloys; ferromagnetic properties of substances; gallium alloys; iron alloys; magnetic anisotropy; magnetic hysteresis; magnetic susceptibility; magnetic transitions; neodymium alloys; permanent magnets; sintering; spin dynamics; AC susceptibility; FOMP transition; Nd(Fe0.92-xB0.08Gax)5.5 magnets; anisotropy field; first-order magnetization process; hysteresis loop; nucleation model; pulsed-field equipment; sintered permanent magnets; spin reorientation temperatures; temperature dependence; Anisotropic magnetoresistance; Frequency measurement; Hysteresis; Magnetic field measurement; Magnetization; Magnetometers; Permanent magnets; Temperature dependence; Temperature measurement; Temperature sensors;
Journal_Title :
Magnetics, IEEE Transactions on
