By Topic

Problems of loss separation for crystalline and consolidated amorphous soft magnetic materials

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$33 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

5 Author(s)
H. Pfutzner ; Inst. of Fundamentals & Theory of Electrotech., Univ. of Technol., Vienna, Austria ; P. Schonhuber ; B. Erbil ; G. Harasko
more authors

Losses were measured as a function of magnetization frequency fd for two advanced soft magnetic alloys: laser-scribed 0.23-mm HI-B steel ZDKH (designated HB) and consolidated amorphous Powercore (designated PC). Although domain observations on HB yielded distinct domain refinements due to the laser treatment, anomalous losses Wa still proved to be higher than the classical ones. A further refinement resulted from increasing f d. Thus, anomalous eddy current losses were reduced while hysteresis losses were increased. As a consequence, it is suggested to separate Wa into an eddy current component and a hysteresis component, which arises in addition to the classical hysteresis loss. With increasing fd, especially wide domains were refined. Results of loss measurements performed at high f after demagnetization with low f d indicated similar bar-type domain structures in HB and PC, the domain widths of the latter exceeding those of HB, however, by one order of magnitude. A Kerr-effect scanning technique confirmed the existence of an inner bar-type domain structure with domain widths of some millimeters

Published in:

IEEE Transactions on Magnetics  (Volume:27 ,  Issue: 3 )