|Controllable SiO2 coating layer of FeSiBPNb amorphous powder cores with excellent soft magnetic properties|
|Huang, Ke-yu; Dong, Ya-qiang; Liu, Min; Ren, Ji-hang; Lu, Shu-han; Zhao, Zhan-kui; Chang, Chun-tao; Wang, Xin-min
|Source Publication||JOURNAL OF IRON AND STEEL RESEARCH INTERNATIONAL
|Abstract||Amorphous powder cores based on spherical (Fe0.76Si0.09B0.1P0.05)(99)Nb-1 amorphous powder and their SiO2 layer prepared by in situ coating insulation process were investigated in detail. These cores were characterized by scanning electron microscopy and X-ray diffraction analyses, and the results revealed that the surface layer of the amorphous powder was composed of SiO2 with uniform surface coverage. The thickness of the SiO2 insulating layer could be controlled by adjusting the tetraethyl orthosilicate (TEOS) content. By cold-pressing with epoxy resin under a pressure of 1800 MPa, a ring powder core with an outer diameter of 20.3 mm, inner diameter of 12.7 mm, and height of 5.3 mm was prepared. The FeSiBPNb composite core showed its best properties when the TEOS content was 2 mL/g (the volume of TEOS for each gram of (Fe0.76Si0.09B0.1P0.05)(99)Nb-1 amorphous powder, mL/g), which showed good relative permeability in the high-frequency range of up to 10 MHz and a low core loss of 320 W/kg under the maximum magnetic flux density of 0.1 T and frequency of 100 kHz.|
; Materials Science
Huang, Ke-yu,Dong, Ya-qiang,Liu, Min,et al. Controllable SiO2 coating layer of FeSiBPNb amorphous powder cores with excellent soft magnetic properties[J]. JOURNAL OF IRON AND STEEL RESEARCH INTERNATIONAL,2018,25(6):624-629.
Huang, Ke-yu.,Dong, Ya-qiang.,Liu, Min.,Ren, Ji-hang.,Lu, Shu-han.,...&Wang, Xin-min.(2018).Controllable SiO2 coating layer of FeSiBPNb amorphous powder cores with excellent soft magnetic properties.JOURNAL OF IRON AND STEEL RESEARCH INTERNATIONAL,25(6),624-629.
Huang, Ke-yu,et al."Controllable SiO2 coating layer of FeSiBPNb amorphous powder cores with excellent soft magnetic properties".JOURNAL OF IRON AND STEEL RESEARCH INTERNATIONAL 25.6(2018):624-629.
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