Influence of microstructure on soft magnetic properties of low coreloss and high Bs Fe85Si2B8P4Cu1 nanocrystalline alloy
Influence of microstructure on soft magnetic properties of low coreloss and high Bs Fe85Si2B8P4Cu1 nanocrystalline alloy
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DOI：
10.1063/1.4868188
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发表时间：
2014-03
影响因子：
3.2
通讯作者：
Parmanand Sharma;X. Zhang;Yan Zhang;A. Makino
中科院分区：
文献类型：
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作者：
Parmanand Sharma;X. Zhang;Yan Zhang;A. Makino
对高Bs Fe_（85）Si_2B_8 P_4Cu_1纳米晶合金的显微组织和磁性能进行了研究。通过常规退火（即，虽然一步退火工艺在<425 °C的温度下短时间产生相当稳定的纳米结构，但该合金的纳米结构和伴随的磁性显示出可通过两步退火工艺调节。获得的纳米晶薄带的晶粒尺寸（D）为1.15 ~ 32 nm，矫顽力（Hc）为1.6 ~ 140 A/m，在1.5 T，50 Hz时铁损为0.39 ~ 5.0 W/kg。Fe_（85）Si_2B_8 P_4Cu_1合金的Hc随D_6的变化而变化，但有一个小的偏差，这可能是由于弱的各向异性。
Microstructure and magnetic properties of high Bs Fe85Si2B8P4Cu1 nano-crystalline alloy were tailored. The Bs ∼ 1.85 T and low coercivity Hc ∼ 6 A/m were obtained by conventional annealing (i.e., one step) at a heating rate of ∼400 °C/min. While one step annealing process produces a fairly stable nanostructure, for short times at temperatures <425 °C, the nanostructure and concomitant magnetic properties of this alloy are shown to be tunable by two step annealing process. Nanocrystalline ribbons with grain size (D) ranging from ∼15 to 32 nm, Hc ∼ 6 to 140 A/m and core-loss at 1.5 T, 50 Hz ∼ 0.39 ∼ 5.0 W/kg were obtained. The Hc of Fe85Si2B8P4Cu1 alloy is shown to vary as D6, but a small deviation was noticed, which may be due to weak anisotropy.