Anomalous Magnetostriction of the ‘Grain-orientated’ Silicon–Iron Sheet


THIS communication is concerned with the anomalous phenomenon occasionally found in examining the magnetostriction of the ‘grain-orientated’ silicon–iron sheets, and it was believed to be a prime cause which gives rise to a transformer noise. The method of measurement is the static one which has been adopted by us for a long time1, and by this method the mean value of magnetostriction can be obtained. The experiments were carefully made with respect to a thin plate-like specimen.

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  1. 1

    Honda, K., Masumoto, H., Shirakawa, Y., and Kobayashi, T., Sci. Rep. Res. Inst. Iron, Steel and Other Metals (Japan), A, 1, 341 (1949).

  2. 2

    Heisenberg, W., Z. Physik, 69, 287 (1931).

  3. 3

    Shturkin, D. A., Bull. Acad. Sci., U.R.S.S., 9, 661 (1947).

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SHIRAKAWA, Y., NUMAKURA, K. Anomalous Magnetostriction of the ‘Grain-orientated’ Silicon–Iron Sheet. Nature 190, 523 (1961).

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