Fe-6.5%Si/Fe_(73.5)Cu_1Nb_3Si_(13.5)B_9纳米晶复合磁粉芯的制备及其软磁性能研究
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摘要
采用Fe-6.5%Si粉末复合Fe_(73.5)Cu_1Nb_3Si_(13.5)B_9纳米晶粉末制备了复合磁粉芯,并讨论了Fe-6.5%Si粉末复合量对复合磁粉芯磁性能的影响。结果表明,随着Fe-6.5%Si粉末的添加量从20%增加到80%,复合磁粉芯的密度几乎从5.46g/cm3线性增加到6.01g/cm3。复合磁粉芯的有效磁导率在20～500kHz的频率范围内具有良好的稳定性。随着Fe-6.5%Si粉末添加量从20%增加到80%,复合磁粉芯的有效磁导率几乎从33.7线性增加到38.3。复合磁粉芯的损耗随着Fe-6.5%Si粉末添加量的增加而增加。复合磁粉芯的直流偏置性能随着Fe-6.5%Si粉末添加量的增加而逐渐降低。当直流偏置场为7.96kA/m时,随着Fe-6.5%Si粉末添加量从0增加到80%,复合磁粉芯直流偏置性能从79.6%逐渐下降到62.2%。
The effects of the amount of Fe-6.5%Si powder on the magnetic properties of the composite magnetic powder cores successfully prepared by mixing Fe-6.5% Si powder to Fe_(73.5)Cu_1Nb_3Si_(13.5)B_9 nanocrystalline powder were discussed.The results showed that with the amount of Fe-6.5%Si powder increasing from 20%to 80%,the density of composite magnetic powder cores increased linearly from 5.46 to 6.01g/cm3.The effective permeability of the composite magnetic cores had good stability in the frequency range of 20-500 kHz.With the amount of Fe-6.5%Si powder increasing from 20%to 80%,the effective permeability of the composite magnetic powder cores increased linearly from 33.7 to 38.3.The loss of composite magnetic cores increased with the increase of the amount of Fe-6.5%Si powder.The DC-bias property of the composite magnetic powder cores tended to deteriorate with the increase of Fe-6.5%Si powder addition.When the DC-bias field was 7.96kA/m,the DC-bias property of the composite cores decreased from 79.6% to 62.2% with the amount of Fe-6.5% Si powders increasing from 0% to 80%.
The effects of the amount of Fe-6.5%Si powder on the magnetic properties of the composite magnetic powder cores successfully prepared by mixing Fe-6.5% Si powder to Fe_(73.5)Cu_1Nb_3Si_(13.5)B_9 nanocrystalline powder were discussed.The results showed that with the amount of Fe-6.5%Si powder increasing from 20%to 80%,the density of composite magnetic powder cores increased linearly from 5.46 to 6.01g/cm3.The effective permeability of the composite magnetic cores had good stability in the frequency range of 20-500 kHz.With the amount of Fe-6.5%Si powder increasing from 20%to 80%,the effective permeability of the composite magnetic powder cores increased linearly from 33.7 to 38.3.The loss of composite magnetic cores increased with the increase of the amount of Fe-6.5%Si powder.The DC-bias property of the composite magnetic powder cores tended to deteriorate with the increase of Fe-6.5%Si powder addition.When the DC-bias field was 7.96kA/m,the DC-bias property of the composite cores decreased from 79.6% to 62.2% with the amount of Fe-6.5% Si powders increasing from 0% to 80%.
引文
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[3]Chang C T,Dong Y Q,Liu M,et al.Low core loss combined with high permeability for Fe-based amorphous powder cores produced by gas atomization powders[J].Journal of Alloys and Compounds,2018,766:959-963.
[4]Chang L,Xie L,Liu M,et al.Novel Fe-based nanocrystalline powder cores with excellent magnetic properties produced using gas-atomized powder[J].Journal of Magnetism and Magnetic Materials,2018,452:442-446.
[5]Xu H P,Wang R W,Wei D,et al.Crystallization kinetics and magnetic properties of FeSiCr amorphous alloy powder cores[J].Journal of Magnetism and Magnetic Materials,2015,385:326-330.
[6]Li Z,Dong Y,Simon P,et al.Enhanced soft magnetic properties of Fe-based amorphous powder cores by longitude magnetic field annealing[J].Journal of Alloys and Compounds,2017,706:1-6.
[7]Wang X Y,Lu Z C,Lu C W,et al.Fe-based nanocrystalline powder cores with ultra-low core loss[J].Journal of Magnetism and Magnetic Materials,2013,347:1-3.
[8]Xu Xiaojun,Wang Xian,Wei Ding,et al.Study of surface coating and magnetic properties of Fe-Si alloy powder cores[J].Journal of Magnetic Materials and Devices,2014,45(6):33-36(in Chinese).徐小军,王鲜,魏鼎,等.铁硅合金粉末的改性硅溶胶表面包覆及其磁粉芯性能[J].磁性材料及器件,2014,45(6):33-36.
[9]Li La,Cai Yixiang,Liu Xin,et al.Effects of phoshate concentration on the structure and magnetic properties of Fe-6.5%Si magnetic powder cores[J].Materials Science and Engineering of Powder Metallurgy,2016,21(6):899-906(in Chinese).李腊,蔡一湘,刘辛,等.磷酸浓度对Fe-6.5%Si磁粉芯组织及磁特性的影响[J].粉末冶金材料科学与工程,2016,21(6):899-906.
[10]Jang P W,Lee B H,Choi G B.Effects of annealing on the magnetic properties of Fe-6.5%Si alloy powder cores[J].J Appl Phys,2008,103(07E743):1-3.
[11]Wang R W,Liu J,Wang Z,et al.Crystallization kinetics and magnetic properties of Fe73.5Si13.5B9Cu1Nb1V2nanocrystalline powder cores[J].Journal of Wuhan University of Technology-Mater Sci Ed,2013,28(5):876-881.
[12]Xiong Yadong,Lin Kun,Yan Mi,et al.Fabrication and magnetic properties of FINEMET alloy powder cores[J].Rare Metal Materials and Engineering,2014,43(8):1951-1954(in Chinese).熊亚东,林坤,严密,等.FeCuNbSiB纳米晶软磁粉芯的制备和磁性能[J].稀有金属材料与工程,2014,43(8):1951-1954.
[13]Li Qingda,Guo Jianyong,Hu Jun et al.Improving the performance of FINEMET nanocrystalline magnetic powder core by a revamped process and the corresponding mechanism[J].Materials Review,2017,31(8):26-30(in Chinese).李庆达,郭建永,胡军,等.通过改进的制备工艺提高FINEMET纳米晶磁粉芯的磁性能及其机理[J].材料导报,2017,31(8):26-30.
[14]Phan M H,Peng Huaxin,Wiscom M R,et al.Effect of annealing on the microstructure and magnetic properties of Fe-based nanocomposite materials[J].Composites Part A,2006,37(2):191-196.
[15]Wang Wei,Xiao Yude,Zhou Juan,et al.Fabrication and magnetic properties of FeCuNbSiB-based soft magnetic cores[J].Mining and Metallurgical Engineering,2009,29(3):95-99(in Chinese).王伟,肖于德,周娟,等.FeCuNbSiB软磁粉芯制备及磁性能研究[J].矿冶工程,2009,29(3):95-99.