Title :
Effects of compressive stress perpendicular to the surface of four percent silicon-iron single crystals
Author :
Hiramatsu, Tsugunori ; Narita, Kenji
Author_Institution :
Oita Technical College, Oita, Japan
fDate :
7/1/1983 12:00:00 AM
Abstract :
Effects of compressive stress perpendicular to the surface of 4 percent silicon-iron single crystals on their magnetic properties were investigated. Picture frame single crystal specimens which were used had [100] and [111] orientation, respectively. The hysteresis loops at low field (0 < H <450 A/m) were measured under the applied stress. For the 4 percent Si-Fe [100] specimen, a large decrease of induction under stress occurs at lower fields, and for the 4 percent Si-Fe [111] specimen, the induction increases with increasing applied stress at lower fields but decreases at higher fields and coincides with the same value of the zero stress case when H is greater than about 400A/m. The stress versus Br/Bmcurves of the 4 percent Si-Fe [100] and [111] specimens were plotted to show the change of the induction under applied stress.
Keywords :
Hysteresis; Magnetostriction; Mechanical factors; Power transformers; Steel materials/devices; Compressive stress; Crystals; Magnetic field measurement; Magnetic hysteresis; Magnetic properties; Magnetization; Shape; Stress measurement; Tensile stress; Transformer cores;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.1983.1062581