SOFT-MAGNETIC PROPERTIES OF FE-B-M-CU (M=HF, ZR, NB) ALLOYS WITH NANOCRYSTALLINE AND AMORPHOUS HYBRID STRUCTURE

被引:11
作者
LEE, JS [1 ]
KIM, KY [1 ]
NOH, TH [1 ]
KANG, IK [1 ]
YOO, YC [1 ]
机构
[1] INHA UNIV, DEPT ENGN MET, INCHON 402751, SOUTH KOREA
关键词
D O I
10.1109/20.334241
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
The change in magnetic properties with B content and annealing temperature was investigated for Fe-B-M-Cu (M = Hf, Zr, Nb) alloys. In the high B alloys over 8 at.% B, the optimum annealing temperatures revealing the excellent soft magnetic properties were below the crystallization temperatures. The annealed microstructure had ultrafine bcc-Fe phase grains with a diameter of 5 similar to 7 nm and a considerably high fraction (30-50 vol.%) of interfacial amorphous phase. For these alloys, very low core loss and high effective permeability were obtained in the frequency range up to 1 MHz. These behaviors were interpreted to be due to their hybrid microstructure and high electrical resistivity.
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收藏
页码:4845 / 4847
页数:3
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