Magnetic field influence on nanocrystallization process of FeCoSiBCuNb alloys

• Published in: Physica status solidi. A, Applications and materials science Applications and materials science, 2006-05, Vol.203 (6), p.1271-1276
• Main Authors: Marín, Pilar, López, Miguel, Ruiz-González, Luisa, Cortés Gil, Raquel, González-Calbet, Jose María, Hernando, Antonio
• Format: Article
• Language: English
• Subjects: 61.43.Dq; 61.46.Df; 61.66.Dk; 68.37.Lp; 75.75.+a; Amorphous and quasicrystalline magnetic materials; Condensed matter: electronic structure, electrical, magnetic, and optical properties; Exact sciences and technology; Magnetic properties and materials; Physics; Studies of specific magnetic materials
• ISSN: 1862-6300; 0031-8965; 1862-6319
• DOI: 10.1002/pssa.200566193

We report the influence of magnetic field in the first stages of nanocrystallization process of FeCoSiBCuNb alloys. Amorphous ribbons have been annealed under longitudinal magnetic field. Depending on annealing temperature and magnetic field intensity, we observe the formation of different microstructures. In particular, when annealing at a temperature corresponding to the first stages of nanocrystallization process in the presence of magnetic field, an alignment of grains associated to grain growth related with a decrease of amorphous percentage has been obtained for certain intensities of applied magnetic field. Sample microstructure has been observed by means of TEM and the influence of microstructure in magnetic behaviour has been analysed by means of magnetization and coercivity field evolution with measuring temperature. (© 2006 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)