Dynamic Domain Wall Movement of Surface Scratched Silicon Steels

K. I. Arai; H. Mogi; K. Ishiyama

doi:10.1109/20.104584

Dynamic Domain Wall Movement of Surface Scratched Silicon Steels

K. I. Arai, H. Mogi, K. Ishiyama

RIEC - Human and Bio Information Systems Division

Tohoku University

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11 Citations (Scopus)

Abstract

The relationship between the magnetic domain configuration and the groove dimension on the grain oriented 3% Si-Fe sheets is 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 optimum groove dimension to decrease the loss was determined by observing the dynamic domain wall movement at 50Hz. After the optimum domain refining, the iron loss of 32pm thick sheet became W13/50=0.13W/kg and W17/50=0.21W/kg. The former is lower than that of Fe-based amorphous sheet.

Original language	English
Pages (from-to)	1966-1968
Number of pages	3
Journal	IEEE Transactions on Magnetics
Volume	26
Issue number	5
DOIs	https://doi.org/10.1109/20.104584
Publication status	Published - 1990 Sept

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abstract = "The relationship between the magnetic domain configuration and the groove dimension on the grain oriented 3% Si-Fe sheets is 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 optimum groove dimension to decrease the loss was determined by observing the dynamic domain wall movement at 50Hz. After the optimum domain refining, the iron loss of 32pm thick sheet became W13/50=0.13W/kg and W17/50=0.21W/kg. The former is lower than that of Fe-based amorphous sheet.",

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N2 - The relationship between the magnetic domain configuration and the groove dimension on the grain oriented 3% Si-Fe sheets is 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 optimum groove dimension to decrease the loss was determined by observing the dynamic domain wall movement at 50Hz. After the optimum domain refining, the iron loss of 32pm thick sheet became W13/50=0.13W/kg and W17/50=0.21W/kg. The former is lower than that of Fe-based amorphous sheet.

AB - The relationship between the magnetic domain configuration and the groove dimension on the grain oriented 3% Si-Fe sheets is 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 optimum groove dimension to decrease the loss was determined by observing the dynamic domain wall movement at 50Hz. After the optimum domain refining, the iron loss of 32pm thick sheet became W13/50=0.13W/kg and W17/50=0.21W/kg. The former is lower than that of Fe-based amorphous sheet.

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Dynamic Domain Wall Movement of Surface Scratched Silicon Steels

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