Effects of P and Cu on the Soft Magnetic Properties of FeSiB Alloy
Abstract: Nanocrystalline Fe84-xSi4B12-yPyCux(x = 0, 1; y = 0, 4) alloys were prepared by annealing the amorphous precursor at at different temperatures. The microsturcture, thermal and magnetic properties were studied utilizing XRD, DSC, VSM and a DC B-H loop tracer, respectively. It was found that the saturation magnetic flux density of nanocystalline alloys have been greatly improved. The simultaneous addition of P and Cu can improve the glass forming ability of FeSiB alloy effectively, and the temperature interval between Tx1 and Tx2 enlarges gradually from 102 to 137 K. After annealing between 623 K and 763 K, the coercivity decreases and then increase, while the permeability increases and then decreases. The alloy annealed at 723 K shows the best magnetic porperties, for example, high saturation magnetic flux density of 1.82 T, low coer-civity of 2.3 A/m and effective permeability of more than 30000 at 1 kHz.
文章引用: 孔凡利 , 门贺 , 沈宝龙 (2011) 添加P与Cu对FeSiB软磁合金性能的影响。 材料科学， 1， 42-45. doi: 10.12677/ms.2011.12008
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