Results 11 to 20 of about 137,303 (302)

Development of High-frequency Soft Magnetic Materials for Power Electronics

open access: yesCailiao gongcheng, 2017
The new requirements of high-frequency magnetic properties are put forward for electronic components with the rapid development of power electronics industry and the use of new electromagnetic materials.
LIU Jun-chang, MEI Yun-hui, LU Guo-quan
doaj   +1 more source

Magnetically Assisted Bilayer Composites for Soft Bending Actuators [PDF]

open access: yesMaterials, 2017
This article presents a soft pneumatic bending actuator using a magnetically assisted bilayer composite composed of silicone polymer and ferromagnetic particles. Bilayer composites were fabricated by mixing ferromagnetic particles to a prepolymer state of silicone in a mold and asymmetrically distributed them by applying a strong non-uniform magnetic ...
Jang, S.H. (author)   +2 more
openaire   +5 more sources

The magnetic susceptibility in soft magnetic composite materials [PDF]

open access: yesLe Journal de Physique IV, 1998
The paper gives a demonstration of an analytic law which correlates the " effective " susceptibility in composite magnetic materials with the volume fraction in magnetic matter. The relation is built round two basic parameters : the first characterises the nature of the magnetic substance through an intrinsic susceptibility supposed to only be ...
Le Floc'H, Marcel   +2 more
openaire   +1 more source

Enhanced Soft Magnetic Properties of Iron-Based Powder Cores with Co-Existence of Fe3O4–MnZnFe2O4 Nanoparticles

open access: yesMetals, 2018
An iron-based soft magnetic composite with Fe3O4-MnZnFe2O4 insulation coating has been prepared by powder metallurgy method. This work investigated the microstructure and magnetic properties of Fe/Fe3O4-MnZnFe2O4 powder cores.
Yuye Xie, Pengfei Yan, Biao Yan
doaj   +1 more source

Temperature and Torque Measurements of Switched Reluctance Actuator with Composite or Laminated Magnetic Cores

open access: yesSensors, 2020
Soft magnetic composite (SMC) materials made of iron powder are more frequently used in construction of electric actuators and motors because of their advantages with respect to Fe–Si electric steel sheets and because they have almost no powder loss. The
Marek Przybylski   +4 more
doaj   +1 more source

Composite fermions in periodic and random antidot lattices [PDF]

open access: yes, 1997
The longitudinal and Hall magnetoresistance of random and periodic arrays of artificial scatterers, imposed on a high-mobility two-dimensional electron gas, were investigated in the vicinity of Landau level filling factor ν=1/2.
Bergmann, R.   +7 more
core   +2 more sources

Switchable Adhesion of Soft Composites Induced by a Magnetic Field

open access: yes, 2020
Switchable adhesives have the potential to improve the manufacturing and recycling of parts and to enable new modes of motility for soft robots. Here, we demonstrate magnetically-switchable adhesion of a two-phase composite to non-magnetic objects.
Chappuis, Benoît   +5 more
core   +1 more source

Fe-Si/MnZn(Fe2O4)2 Core-shell Composites with Excellent Magnetic Properties by Mechanical Milling and Spark Plasma Sintering (SPS)

open access: yesMetals, 2018
The Fe-Si/MnZn(Fe2O4)2 composite powders are synthetized by means of the mechanical milling, and Fe-Si/MnZn(Fe2O4)2 soft magnetic composites are prepared by spark plasma sintering (SPS).
Liang Yan, Biao Yan
doaj   +1 more source

Cold spraying of thermally softened Ni-coated FeSiAl composite powder: Microstructure characterization, tribological performance and magnetic property

open access: yesMaterials & Design, 2018
The low retainability of reinforcing particles in functional composite coatings fabricated by cold spray (CS) is a major problem in maximizing coating properties.
Chaoyue Chen   +8 more
doaj   +1 more source

Loss separation in soft magnetic composites [PDF]

open access: yesJournal of Applied Physics, 2011
We report and discuss significant results on the magnetic losses and their frequency dependence insoft magnetic composites. Two types of bonded Fe-based materials have been characterized atdifferent inductions from dc to 10 kHz and analyzed by extending the concept of loss separation and the related statistical theory to the case of heterogeneous ...
de La Barrière, Olivier   +7 more
openaire   +4 more sources

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