The P content dependences of the crystallization behavior, thermal stability and soft-magnetic properties of high Fe content Fe 83.3Si4Cu0.7B12 - xPx (x = 0 to 8) nanocrystalline soft-magnetic alloys were investigated. P addition is very effective in widening the optimum annealing temperature range and refining of bcc-Fe grain size in addition to the increasing of nanocrystalline grain density. Uniform nanocrystalline bcc-Fe grains with average size of about 20 nm and number density of 1023-1024 /m3 were prepared at around x = 6-8 for the annealed Fe83.3Si 4Cu0.7B12 - xPx alloys. The coercivity Hc markedly decreases with increasing x and exhibits a minimum at around x = 6-8, while the saturation magnetic flux density B s shows a slight decrease. Fe83.3Si4Cu 0.7B6P6 nanocrystalline alloy exhibits excellent soft-magnetic properties with a high saturation magnetic flux density Bs of 1.77 T, low coercivity Hc of 4.2 A/m and high effective permeability μe of 11,600 at 1 kHz.
|ジャーナル||Thin Solid Films|
|出版ステータス||Published - 2011 9月 30|
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