Journal
APPLIED PHYSICS LETTERS
Volume 90, Issue 21, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.2742598
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Melt-spun nanocrystalline/amorphous composite ribbons (e.g., Finemet and Nanoperm) have excellent soft magnetic properties but are notoriously brittle after crystallization. In this letter, the authors present their findings of increased relative strain at fracture in Co-rich nanocomposite soft magnetic ribbons compared to conventional nanocomposite ribbons. Bending tests of the Co-rich ribbons show relative strain at fracture values more than twice as high as a Nanoperm ribbon. These Co-rich alloys have excellent soft magnetic properties with potential for high temperature applications. A (Co0.90Fe0.08Ni0.02)(88)Zr7B4Cu1 ribbon annealed at 823 K for 3600 s has a high saturation magnetization of 131 A m(2)/kg and a low coercivity of 8 A/m. (c) 2007 American Institute of Physics.
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