抄録
Magnetostriction was measured in a 3% Si-Fe grain oriented single sheet of 100×500mm under non-uniform temperature distribution of 5-10°C difference in the sheet. The temperature difference of 0.2°C/mm in the sheet increased magnetostriction three to four times larger than that of uniformly elevated temperature. Compressive stress induced by non-uniform thermal expansion enhances magnetostriction tremendously that is analyzed by experiment and computer simulation.
