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Annealing effect on the magnetic properties of cobalt-based amorphous alloys
- Issue Date
- Apr-2017
- Publisher
- ELSEVIER SCIENCE BV
- Keywords
- Annealing; Co-based; Amorphous; Soft magnetic; Ferromagnetic
- Citation
- CURRENT APPLIED PHYSICS, v.17, no.4, pp.548 - 551
- Indexed
- SCIE
SCOPUS
KCI
- Journal Title
- CURRENT APPLIED PHYSICS
- Volume
- 17
- Number
- 4
- Start Page
- 548
- End Page
- 551
- ISSN
- 1567-1739
- Abstract
- The annealing effects on the magnetic properties of the Co72B19.2Si4.8Cr4 and Co64.8Fe72E19.2Si4.8Cr4 alloy systems are reported. Ribbon samples with 2 mm width and 20-30 pm thickness for both compositions were synthesized by melt spinning. The as-spun samples were subjected to annealing at various temperatures below their glass transition temperatures for 15 min in a vacuum. The annealed systems tended to have improved soft magnetic characteristics, including higher saturation magnetization and lower coercivity values, while maintaining their amorphous phase. A high saturation magnetization of 87.8 emu g(-1) and low coercivity of 0.084 Oe were obtained for Co64.8Fe7.2B19.2Si4.8Cr4 after annealing at 400 degrees C, which is a significant improvement in comparison to the magnetic properties of the as-spun ribbons. (C) 2017 Elsevier B.V. All rights reserved.
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Related Researcher
- Kim, Young Keun
- College of Engineering (Department of Materials Science and Engineering)