Effect of Surface Modification of Compacted Iron Powder Particles on Magnetization Processes According to the Landgraf Method of Hysteresis Loss Separation |
| P. Kollára, M. Tkáča, b, D. Olekšákovác, R. Maciaszeka, M. Fáberováb, R. Burešb
aInstitute of Physics, Faculty of Science, Pavol Jozef Šafárik University in Košice, Park Angelinum 9, 04154 Košice, Slovakia bInstitute of Materials Research, Slovak Academy of Sciences, Watsonova 47, 04001 Košice, Slovakia cInstitute of Manufacturing Management, Faculty of Manufacturing Technologies, Technical University of Košice, Bayerova 1, 08001 Prešov, Slovakia |
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| The aim of this work was to investigate the effect of surface modification of iron powder particles of two different size fractions in soft magnetic compacted powder on the results of direct current loss separation according to the Landgraf method. We found that the surface treatment of smaller iron powder particles leads to an increased contribution of domain wall displacements to the overall magnetization process, while the surface modification of larger iron powder particles results in an increased contribution of the rotation of the spontaneous magnetization vector to the magnetization process of the compacted soft magnetic powder. |
DOI:10.12693/APhysPolA.149.S97 topics: magnetic materials, magnetic hysteresis, magnetic cores, magnetic properties of magnetically ordered materials |