FeCuNbSiB纳米晶合金成分及碎磁工艺对磁性能的影响  

Effects of Composition and Magnetic Fragmentation Process on Magnetic Properties of FeCuNbSiB Nanocrystalline Alloy

作　　者：张伟[1] 刘天成[1,2] 潘贇 雷毅楠 李会波 ZHANG Wei;LIU Tiancheng;PAN Yun;LEI Yinan;LI Huibo(Advanced Technology&Materials Co.,Ltd.,Beijing 100081,China;China Iron&Steel Research Institute Group,Beijing 100081,China)

机构地区：[1]安泰科技股份有限公司,北京100081 [2]中国钢研科技集团有限公司,北京100081

出　　处：《热加工工艺》2023年第12期16-20,27,共6页Hot Working Technology

基　　金：国家重点研发计划项目(2021YFB3800505)。

摘　　要：对Fe_(74)Cu_(1)Nb_(3)Si_(15)B_(7)以及Fe_(81)Cu_(6)Nb_(1)Si_(7)B_(5)纳米晶合金分别在570、520℃下进行退火热处理,然后与丙烯酸酯胶粘剂贴合制备多层导磁片复合材料,研究了不同合金成分对纳米晶导磁片磁性能的影响。结果表明,Fe_(74)Cu_(1)Nb_(3)Si_(15)B_(7)在100~600 mT(f为100 kHz)时,损耗值P_(cm)明显小于Fe_(81)Cu_(6)Nb_(1)Si_(7)B_(5)的损耗值。当频率在1.8 MHz以上时,Fe_(81)Cu_(6)Nb_(1)-Si_(7)B_(5)虚部磁导率μ’反而更低,Fe_(81)Cu_(6)Nb_(1)Si_(7)B_(5)在高频下表现出更好的特性。在相同电流下,Fe_(81)Cu_(6)Nb_(1)Si_(7)B_(5)导磁片直流偏置性能相对更高。除此之外,随着碎磁次数的增加,两种合金实部磁导率μ’降低同时随频率f的衰减量减小;在100kHz~30 MHz频率范围内,两种合金虚部磁导率μ’最大值对应频率f随碎磁次数增加均向高频偏移。Nanocrystalline alloys Fe_(74)Cu_1Nb_3Si_(15)B_(7and) Fe_(81)Cu_6Nb_1Si_7B_(5were) annealed at 570℃and 520℃,respectively,then they were bonded with acrylate adhesive to prepare multilayer magnetic sheet composites.The effect of different composition on the magnetic properties of nanocrystalline magnetic sheets was studied.The results show that the loss value P_(cm)of Fe_(74)Cu_1Nb_3Si_(15)B_(7in) the range of 100-600 mT (f is 100 kHz) is significantly lower than that of Fe_(81)Cu_6Nb_1Si_7B_5.However,when the frequency is above 1.8 MHz,Fe_(81)Cu_6Nb_1Si_7B_(5imaginary) part permeabilityμ'is lower,and Fe_(81)Cu_6Nb_1Si_7B_(5exhibits) better characteristics at high frequency.Under the same current,the DC-bias performance of Fe_(81)Cu_6Nb_1Si_7B_(5is) relatively higher.In addition,with the increasing times of magnetic fragmentation,both the real part permeabilityμ'and attenuation of the two alloys decrease with the frequency increasing.In the frequency range of 100 kHz-30 MHz,the corresponding frequency f of the maximum imaginary part permeabilityμ'of the two alloys shifts to high frequency with the increase of magnetic fragmentation times.

关 键 词：纳米晶合金 无线充电 直流偏置性能 复合磁导率 导磁片 

分 类 号：TG156.2[金属学及工艺—热处理]