Pregled bibliografske jedinice broj: 5540
Influence of core current on magnetization processes in amorphous and nanocrystalline Fe_73.5Cu_1Nb_3Si_15.5B_7 ribbons
Influence of core current on magnetization processes in amorphous and nanocrystalline Fe_73.5Cu_1Nb_3Si_15.5B_7 ribbons // Materials science and engineering A : structural materials properties, microstructure and processing, 226 (1997), 507-510 doi:10.1016/S0921-5093(96)10674-2 (međunarodna recenzija, članak, znanstveni)
CROSBI ID: 5540 Za ispravke kontaktirajte CROSBI podršku putem web obrasca
Naslov
Influence of core current on magnetization processes in amorphous and nanocrystalline Fe_73.5Cu_1Nb_3Si_15.5B_7 ribbons
Autori
Sabolek, Stjepan ; Babić, Emil ; Popović, Stanko ; Herzer, Gieselher
Izvornik
Materials science and engineering A : structural materials properties, microstructure and processing (0921-5093) 226
(1997);
507-510
Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni
Ključne riječi
amorphous Fe_73.5Cu_1Nb_3Si_15.5B_7 ribbons; magnetization processes
Sažetak
The model for the influence of surface fields H-p generated by the core currents has been employed for the investigation of the magnetization processes and the domain structure in an initially amorphous Fe73.5Cu1Nb3Si15.5B7 ribbon which was successively annealed at selected temperatures T-a up to 540 degrees C. The analysis of the dM/dt vs. H curves and the M-H loops showed that in the as-received state only a fraction of inner domains with magnetizations I nearly parallel with the ribbon axis (i.e. with small angles [delta] between I and ribbon axis) participate in magnetization process. The analysis of the effects of H-p on the coercive field H-c and the shift of the center C of the M-H loop shows that the annealing up to T-a = 450 degrees C reduces the average strength of pinning [S-u] of the domain walls whereas the angle [delta] changes only a little with T-a. For T-a greater than or equal to 400 degrees C the maximum magnetization M-m practically reaches the saturation magnetization M-s (approximate to 1.3 T) already in the magnetizing field H-0 = 100 A m(-1) which indicates rather simple domain structure with I mostly along the ribbon axis. At T-a = 450 degrees C H-c reached its minimum value, probably associated with the formation of nano-sized Fe-Si particles. Further annealing (T-a > 450 degrees C) leads to rapid increase in both [S-u] and [delta], hence also in H-c, as already observed in the previous studies. (C) 1997 Elsevier Science S.A.
Izvorni jezik
Engleski
Znanstvena područja
Fizika
Citiraj ovu publikaciju:
Časopis indeksira:
- Current Contents Connect (CCC)
- Web of Science Core Collection (WoSCC)
- Science Citation Index Expanded (SCI-EXP)
- SCI-EXP, SSCI i/ili A&HCI
- Scopus
