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of transformer in high-power and high-voltage switching power supply mainly comes from the winding loss and the core losses. Under natural cold wind conditions, the temperature rise is obviously high due...在280 A/m以内时,对应的饱和磁感应强度呈指数型增长;当磁场强度超过280 A/m后,对应的饱和磁感应强度趋于平稳. 图1 12 kHz下的磁芯损耗曲线 Fig. 1 Core loss curve at 12 kHz 图2 12 kHz下的磁化曲线 Fig. 2 Magnetization curve at 12 kHz 1.2.2......
. In addition, the ultrafine size of d(0.1) was increased by 22.84% (from 5.56 to 6.83 μm) in the presence of magnetic seeds, i.e., the ultrafine particles (most vulnerable faction to loss... decreases with increased magnetic seeds dosage, implying that the magnetic seeds also adsorb onto the gangue particles, forming futile agglomeration and causing loss in selectivity of the flotation process......
Efficient removal of phosphate from aqueous solution using novel magnetic nanocomposites with Fe3O4@SiO2 core and mesoporous CeO2 shell丁鸿1,赵燕凌1,2,段倩林1,王俊文1,张侃3,丁光月1,谢鲜梅1,丁传敏11. College of Chemistry...:Fe3O4@SiO2 magnetic nanoparticles functionalized with mesoporous cerium oxide(Fe3O4@SiO2@mCeO2) was fabricated as a novel adsorbent to remove phosphate from......
Efficient removal of phosphate from aqueous solution using novel magnetic nanocomposites with Fe3O4@SiO2 core and mesoporous CeO2 shell丁鸿1,赵燕凌1,2,段倩林1,王俊文1,张侃3,丁光月1,谢鲜梅1,丁传敏11. College of Chemistry...:Fe3O4@SiO2 magnetic nanoparticles functionalized with mesoporous cerium oxide(Fe3O4@SiO2@mCeO2) was fabricated as a novel adsorbent to remove phosphate from......
A and then La0.8Ba0.2MnO3 is compounded with nickel nano-powders which have magnetic property, so that the microwave absorption of the composite system is enhanced greatly because of a common effect of dielectric loss and magnetic loss. Key words: microwave absorption; La0.8Ba0.2MnO3; nickel; nano-composite materials; dielectric loss; magnetic loss  ......
in an alternating magnetic field with high frequency.However,the nonmagnetic binder impairs the magnetostriction of the composites.To achieve high magnetostriction and low eddy current loss,the mixture...(7.24 g/cm3).The magnetic loss of the bonded Terfenol-D composites was 192 mW/cm3 at a frequency of 100 kHz in a magnetic field of 960 A/m,which was about one third of that of casting Terfenol-D alloys......
J. Cent. South Univ. Technol. (2011) 18: 1371-1376 DOI: 10.1007/s11771-011-0848-6 Surfactant-assisted synthesis and magnetic properties of monodispersed manganese ferrite nanocrystals SHI Rong..., and size of the products were characterized in detail by X-ray diffraction (XRD) and transmission electron microscopy (TEM). Magnetic properties of MnFe2O4 nanocrystals with different morphologies were......
with low magnetic and dielectric loss tangent over a frequency ranging from 600 to 800 MHz. The experimental results showed that addition of Bi2O3 lowered the sintering temperature(1 020 ℃) and then reduced the average grain size(<2 μm) and enhanced the resistivity(>2.68×108 Ω·cm) dramatically, which consequently decreased the magnetic and dielectric loss. Additionally, the low loss factors were......
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and 550 °C exhibited a significant core loss of 167.5 W/kg at 100 kHz and 50 mT. Key words: soft magnetic composites; in-situ oxidation preparation; magnesioferrite insulating coating layer; annealing... to their excellent soft magnetic properties including high saturation magnetization, low coercivity and low core loss [1-3]. According to the application requirements, SMCs are designed and synthesized......