Influence of Milling and Compaction Processes οn Magnetic Properties of FeCo Powder |
| T. Szumiata a, M. Gzik-Szumiata a, K. Brzózka a, M. Gawroński a, B. Górka a, P. Kollár b, D. Olekšáková c, K. Polański d and W. Szmaja d
a Department of Physics, Technical University of Radom, Krasickiego 54, 26-600 Radom, Poland b Institute of Physics, P.J. Šafárik University, Park Angelinum 9, 041 54 Košice, Slovakia c Department of Applied Mathematics, Faculty of Mechanical Engineering, Technical University in Košice, Letná 9, 042 00 Košice, Slovakia d Department of Solid State Physics, University of Łódź , Pomorska 149/153, 90-236 Łódź, Poland |
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| Magnetic and structural studies were performed on Fe50Co50 material. The samples (disk-shaped, diameter: 10 mm, thickness: 2.5 mm) were fabricated by compaction of powder under pressure of 800 MPa for 5 min at temperatures 300-600°C. The powder was obtained by milling of Fe50Co50 alloy swarfs in high-energy planetary mill. The milling time varied from 1 h to 40 h. In the course of milling process the mean size of alloy pieces was decreasing from about 0.5 mm to 0.05 mm (scanning electron microscopy), which provided more compact structure after compression. The annealing process during compaction strongly reduces a coercive field of the samples. Parameters of conversion electron Mössbauer spectra are almost the same for all samples, which points to not significant changes of atomic and magnetic order after milling and compacting. |
| DOI: 10.12693/APhysPolA.115.403 PACS numbers: 76.80.+y, 75.50.Bb, 75.60.Ej, 81.20.Ev |