Effects of Intrinsic Forces in Toroidal Cores Wound of Soft-Magnetic Ribbons |
| B. Butvinováa, P. Butvina, P. Šveca, M. Chromčíkováb and G. Vlasáka
aInstitute of Physics, Slovak Academy of Sciences, 845 11 Bratislava, Slovakia bVitrum Laugaricio - Joint Glass Centre of the Inst. of Inorg. Chem., SAS Bratislava and University of Trenčín, 911 50 Trenčín, Slovakia |
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| Magnetic anisotropy as shown by hysteresis loops of tape-wound toroidal cores has been inspected as to the specific response of the anisotropy to core-internal forces during and after annealing. The loops of toroids are compared to that of strip samples annealed together in various ambience. The core-internal forces were manipulated by means of different core construction, too. The results show that it is the heterogeneity, which produces the most effective forces. Different annealing-induced ribbon shrinkage makes the cores effectively heterogeneous and governs their magnetic response, whereas inherent ribbon heterogeneity affects the core properties, too, and is essential for homogeneous cores. |
| DOI: 10.12693/APhysPolA.118.815 PACS numbers: 75.20.En, 75.60.Ej, 75.75.-c, 81.40.-z |