Dynamic Domain Wall Movement of Surface Scratched Silicon Steels

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

Research output: Contribution to journalArticle

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 languageEnglish
Pages (from-to)1966-1968
Number of pages3
JournalIEEE Transactions on Magnetics
Volume26
Issue number5
DOIs
Publication statusPublished - 1990 Sep

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering

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