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LI Jiuming, WANG Tongshuai, LIU Qirui, JIANG Daguo. Effect of Co Addition on Soft Magnetic Properties of FeCuNbSiB Amorphous/Nanocrystalline Magnetic Cores[J]. Materials and Mechanical Engineering, 2018, 42(10): 29-33. DOI: 10.11973/jxgccl201810006
Citation: LI Jiuming, WANG Tongshuai, LIU Qirui, JIANG Daguo. Effect of Co Addition on Soft Magnetic Properties of FeCuNbSiB Amorphous/Nanocrystalline Magnetic Cores[J]. Materials and Mechanical Engineering, 2018, 42(10): 29-33. DOI: 10.11973/jxgccl201810006
shu

Effect of Co Addition on Soft Magnetic Properties of FeCuNbSiB Amorphous/Nanocrystalline Magnetic Cores

  • 1. College of Building Engineering, Jinggangshan University, Ji'an 343009, China;

  • 2. School of Mathematical Sciences & Physics, Jinggangshan University, Ji'an 343009, China

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  • Received Date: July 18, 2017
  • Revised Date: August 05, 2018
    Graphical Abstract
    • Abstract
  • B was substituted by Si and Co on basis of the composition of Fe73.5Cu1Nb3Si13.5B9 alloy, and then Fe73.5Co0.3Cu1Nb3Si14.2B8 alloy strips were prepared by single roll fast quenching method. The tested alloy strips were winded into toroidal magnetic cores, and then these cores were annealed at different temperatures. The influence of Co addition on the crystallization behavior of alloy strips and soft magnetic properties of magnetic cores were studied. The results show that Co addition had little effect on crystallization behavior of alloy strips. The tested alloy strips had an amorphous structure, and the magnetic cores after annealing at 550℃ had the co-existence of amorphous and nanocrystalline structures. After addition with Co, the initial permeability and saturation induction density of tested alloy amorphous/nanocrystalline magnetic cores were reduced by 0.149 9 H·m-1 and 388 T, respectively, while the coercivity increased by 0.338 5 A·m-1, indicating the direct-current soft magnetic properties decreased. The effective amplitude permeability, inductance and quality factor at high frequencies (less than 100 kHz) of tested alloy amorphous/nanocrystalline magnetic cores increased while the total loss density and coercivity decreased, indicating the alternating-current soft magnetic properties were improved.
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    • References (18)
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