NDLI: Dynamic domain wall movement of surface scratched silicon steels

Content Provider	IEEE Xplore Digital Library
Author	Arai, K.I. Mogi, H. Ishiyama, K.
Copyright Year	1965
Abstract	The relationship between the magnetic domain configuration and the groove dimension on grain-oriented 3% Si-Fe sheets was examined in the vicinity of the grooves using a scanning electron microscope. The grooves were formed on the sheet surface by a chemical scratching technique in order to refine the magnetic domains to reduce the eddy current loss. The eddy current loss considerably increased when the groove depth exceeded 20 mu m in sheets of 62-76- mu m thickness. The optimum groove dimension for decreasing the loss was determined by observing the dynamic domain wall movement at 50 Hz. After the optimum domain refining, the iron loss of the 32- mu m thick sheet became W13/50=0.13 W/kg and W17/50=0.21W/kg. The former is lower than the value determined for an Fe-based amorphous sheet.<>
Sponsorship	IEEE Magnetics Society
Starting Page	1966
Ending Page	1968
Page Count	3
File Size	318898
File Format	PDF
ISSN	00189464
Volume Number	26
Issue Number	5
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1990-09-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Silicon Steel Magnetic domain walls Magnetic domains Eddy currents Magnetic force microscopy Scanning electron microscopy Chemicals Iron Amorphous materials
Content Type	Text
Resource Type	Article
Subject	Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering

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