Journal
MATERIALS LETTERS
Volume 122, Issue -, Pages 155-158Publisher
ELSEVIER
DOI: 10.1016/j.matlet.2014.02.002
Keywords
Crystallization; Laser processing; Soft magnet
Funding
- NSF [CMMI 0969249]
- Div Of Civil, Mechanical, & Manufact Inn
- Directorate For Engineering [0969249] Funding Source: National Science Foundation
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Devitrification of Fe-Si-B melt-spun ribbons by laser annealing, instead of typical furnace-annealing, led to substantially refined alpha-Fe(Si) nanocrystals nucleating within the amorphous matrix with a large number density of nucleation sites. This microstructural refinement due to laser devitrification leads to substantially improved soft magnetic properties with a drastic, 25 times, reduction in the coercivity, while maintaining the saturation magnetization values comparable to the furnace-annealed condition, making laser-annealing a very attractive devitrification route for these soft magnetic alloys. (C) 2014 Elsevier B.V. All rights reserved.
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