Surface crystallization and magnetic properties of Fe84.3Cu0.7Si4B8P3 soft magnetic ribbons. (1st September 2015)

• Record Type: Journal Article
• Authors: Lopatina, E.; Soldatov, I.; Budinsky, V.; Marsilius, M.; Schultz, L.; Herzer, G.; Schäfer, R.
• Is Part Of: Acta materialia. Volume 96(2015)
• Page Start: 10
• Page End: 17
• Publication Date: 2015-09-01
• Subjects: Crystallization -- Nanocrystalline material -- Amorphous materials -- Magnetization process; Materials -- Periodicals; Materials science -- Periodicals; Materials -- Mechanical properties -- Periodicals; Metallurgy -- Periodicals; Chemistry, Inorganic -- Periodicals; 620.112
• DOI: 10.1016/j.actamat.2015.05.051
• Languages: English
• ISSNs: 1359-6454

Abstract

Abstract: The magnetic microstructure and hysteresis properties of Fe84.3 Cu0.7 Si4 B8 P3 soft magnetic ribbons have been investigated by Kerr-microscopy, Kerr-magnetometry and inductive hysteresis measurements. Crystalline surface layers were already present after quenching, causing an out-of-plane anisotropy in the amorphous bulk. Annealing at elevated temperature leads to nanocrystallization in the inner part of the ribbon and to a gradual decline of the perpendicular anisotropy with increasing temperature. The surface magnetization process is determined by the coercive motion of 180° domain walls along the ribbon axis, while the bulk magnetization process is dominated by reversible rotation of magnetization.