Magnetic Properties and Magnetization Reversal Processes in Nanocrystalline (Pr, Dy)-(Fe, Co)-B Doped Ni and Mn Ribbons |
| A. Przyby l
Institute of Physics, Faculty of Production Engineering and Materials Technology, Częstochowa University of Technology, al. Armii Krajowej 19, 42-200 Częstochowa |
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| The magnetization reversal processes responsible for magnetic properties of rapidly solidified ribbons produced from Pr8Dy1Fe60Co7Mn6-xNixB14Zr1Ti3 alloys (where x=0, 3, 6) were investigated. The ingot samples were obtained by arc-melting of high purity constituent elements. The single roll spinning technique was used for producing rapidly solidified ribbons. Subsequently, the ribbons were subjected to annealing at 963 K temperature for 5 min in order to induce the crystallization. The magnetic parameters were determined from magnetic hysteresis loops measured in the external magnetic field up to 2 T at room temperature. The analysis of the magnetization reversal processes in the tested materials was carried out based on measurements of recoil curves and minor hysteresis loops. The series of recoil curves were obtained for the initially saturated and for the thermally demagnetized specimens. The minor hysteresis loops were used to obtain the field dependences of remanence Jr and coercivity JHc. In order to characterize interactions between grains of crystalline phases the δM plots were also constructed from recoil curves. |
DOI:10.12693/APhysPolA.135.288 PACS numbers: 75.20.En, 91.60.Pn |