Title :
Frequency Dependence of Loss Behavior in Bonded Anisotropic Giant Magnetostrictive Materials
Author :
Hao Meng ; Tianli Zhang ; Chengbao Jiang
Author_Institution :
Sch. of Mater. Sci. & Eng., Beihang Univ., Beijing, China
Abstract :
The magnetic energy losses and their frequency dependence are investigated in the TbDyFe/epoxy giant magnetostrictive composites. The value of total loss is extremely low in the composite which is only 3.7% of the monolithic TbDyFe alloy at high frequency of 100 kHz under the peak magnetic induction of 10 mT. With the measured loss values, fitting formulas are suggested to deeply study the contributions of hysteresis loss and eddy current loss to the total loss. The dominant loss is hysteresis loss for the composite and eddy current loss for the monolithic TbDyFe alloy.
Keywords :
composite materials; dysprosium alloys; eddy current losses; electromagnetic induction; ferromagnetic materials; giant magnetoresistance; iron alloys; magnetic hysteresis; magnetic leakage; magnetostriction; resins; terbium alloys; TbDyFe; TbDyFe-epoxy giant magnetostrictive composites; bonded anisotropic giant magnetostrictive materials; eddy current loss; frequency dependence; hysteresis loss; magnetic energy losses; magnetic induction; monolithic alloy; Eddy currents; Loss measurement; Magnetic hysteresis; Magnetic losses; Magnetostriction; Materials; Metals; Composites; TbDyFe; loss; magnetostriction;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2014.2314282
