Journal
SCRIPTA MATERIALIA
Volume 48, Issue 7, Pages 869-874Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/S1359-6462(02)00612-7
Keywords
nanocrystalline soft magnetic alloy; rapidly solidified ribbon; high permeability; high saturation magnetic induction
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The effect of the addition of P and Cu to Fe85Nb6B9 alloy on an as-quenched structure and soft magnetic properties in a nanocrystallized state has been investigated. The Fe85Nb6B9 alloy melt-spun m air has an as-quenched structure of an amorphous phase and alpha-Fe grains with 20-45 nm in size. The coarse grains should still remain in the nanocrystallized structure, which deteriorates the soft magnetic properties. The simultaneous addition of 1 at.% P and 0.1 at.% Cu to the Fe85Nb6B9 alloy decreases the alpha-Fe grain size to nanoscale in an as-quenched state, and realizes a uniform crystallized structure with high saturation induction of 1.61 T as well as high permeability of 41,000. (C) 2003 Acta Materialia Inc. Published by Elsevier Science Ltd. All rights reserved.
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