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Magnetostriction of grain‐oriented electrical steel sheet under temperature gradient
Author(s) -
Okazaki Yasuo,
Yanase Shunji,
Niwa Hironari,
Tani Yoshihiro
Publication year - 2004
Publication title -
electrical engineering in japan
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.136
H-Index - 28
eISSN - 1520-6416
pISSN - 0424-7760
DOI - 10.1002/eej.20003
Subject(s) - magnetostriction , electrical steel , materials science , temperature gradient , composite material , thermal expansion , grain size , die (integrated circuit) , thermal , magnetic field , thermodynamics , physics , nanotechnology , quantum mechanics
Magnetostriction was measured in 3% Si‐Fe grain‐oriented electrical steel under a nonuniform temperature distribution with a 5 to 10 °C difference in a single sheet measuring 100 × 500 mm. A temperature difference of 0.2 °C/mm in the sheet increased magnetostriction four times as much as in the case of a uniformly elevated temperature. Compressive stress induced by nonuniform thermal expansion enhances magnetostriction greatly; this effect was analyzed by experiment and computer simulation. © 2004 Wiley Periodicals, Inc. Electr Eng Jpn, 149(3): 8–14, 2004; Published online in Wiley InterScience ( www.interscience.wiley.com ). DOI 10.1002/eej.20003