Title :
Field rate measurement of time-dependent magnetic phenomena
Author :
Sun, Hong ; Pang, Wenjie ; Street, R.
Author_Institution :
Dept. of Phys., Western Australia Univ., Nedlands, WA, Australia
fDate :
9/1/2000 12:00:00 AM
Abstract :
Magnetic viscosity parameter Λ of sintered and melt quenched Nd-Fe-B magnets was measured using the constant-field and constant-rate methods. The results obtained by the two methods are compared to each other. The constant-rate method works well for melt quenched Nd-Fe-B, which has a very low reversible susceptibility. However the values of Λ obtained by the two methods do not agree with each other for sintered Nd-Fe-B, which has a relatively high reversible susceptibility
Keywords :
boron alloys; iron alloys; magnetic aftereffect; magnetic susceptibility; neodymium alloys; permanent magnets; NdFeB; constant-field method; constant-rate method; field rate measurement; low reversible susceptibility; magnetic viscosity parameter; permanent magnets; time-dependent magnetic phenomena; Equations; Magnetic domains; Magnetic field measurement; Magnetic hysteresis; Magnetic materials; Magnets; Needles; Saturation magnetization; Sun; Viscosity;
Journal_Title :
Magnetics, IEEE Transactions on
