Results 251 to 260 of about 138,469 (296)
Some of the next articles are maybe not open access.
Modeling of soft magnetic composites
Conference Record of the 2004 IEEE Industry Applications Conference, 2004. 39th IAS Annual Meeting., 2004The electromagnetic properties of soft magnetic composites (SMCs) are studied based on a finite element model. In this approach, SMCs are modeled as an infinite array of hexagonal cylinders in two dimensions. Each cylinder is assumed to be saturable pure iron coated with a thin layer of binder or insulation.
null Yanhong Cui, G.B. Kliman
openaire +1 more source
Magnetically Soft Eutectic Composites
Journal of Applied Physics, 1972Unidirectional solidification of pseudoeutectic alloys from the (Fe, Co, Ni)–NbC system resulted in the formation of a (Fe, Co, Ni) solid solution matrix reinforced by aligned NbC fibers. Room-temperature magnetic hysteresis loop and high-temperature saturation magnetization measurements were performed on controlled eutectic samples whose matrix ...
J. A. Batt, E. R. Thompson
openaire +1 more source
Soft magnetic composite materials (SMCs)
Journal of Materials Processing Technology, 2007Abstract Soft magnetic composites (SMCs), which are used in electromagnetic applications, can be described as ferromagnetic powder particles surrounded by an electrical insulating film. SMC components are normally manufactured by conventional PM compaction combined with new techniques, such as two step compaction, warm compaction, multi-step and ...
H Shokrollahi, K Janghorban
exaly +2 more sources
Journal of Magnetism and Magnetic Materials, 2007
Abstract A thorough micromagnetic analysis of the exchange-spring problem is reported with special emphasis on multilayers constituted by hard–soft exchange-coupled phases. The developed one—dimensional micromagnetic model leads to a complete magnetic phase diagram in terms of layer thicknesses.
M. Ghidini +4 more
openaire +1 more source
Abstract A thorough micromagnetic analysis of the exchange-spring problem is reported with special emphasis on multilayers constituted by hard–soft exchange-coupled phases. The developed one—dimensional micromagnetic model leads to a complete magnetic phase diagram in terms of layer thicknesses.
M. Ghidini +4 more
openaire +1 more source
Magnetic properties of hybrid-soft magnetic composites
Materials Science and Engineering: B, 2009Abstract Soft magnetic composites containing an organic binder and mixtures of two different soft magnetic particles – iron and nano-crystalline Fe73.5Si15.5B7Cu1Nb3 – in varying mixing ratios have been prepared at a total filler fraction x mag = 0.5 and examined regarding the magnetic properties.
M. Anhalt, B. Weidenfeller
openaire +1 more source
Soft magnetic composites in active magnetic bearings
IEE Colloquium on New Magnetic Materials - Bonded Iron, Lamination Steels, Sintered Iron and Permanent Magnets, 1998Active magnetic bearings are being considered increasingly for high-speed electrical machines, since they eliminate frictional losses and are virtually maintenance-free. However, in addition to the copper loss in the coils, there may be a significant eddy current and hysteresis loss in the soft magnetic rotor.
P. Mason, D. Nowe, K. Atallah
openaire +1 more source
Nanocrystalline soft magnetic composite cores
Journal of Materials Processing Technology, 2006Abstract The microstructure and soft magnetic properties, i.e. saturation induction, remanence, coercivity and permeability of high-energy ball milled nanostructured FINEMET powder cores and nanocomposite cores with average powder particles diameter between 25 and 75 μm, 300 and 500 μm and 750 and 1200 μm are presented in this paper.
R. Nowosielski +3 more
openaire +1 more source
High Strength Soft Magnetic Composites
MRS Proceedings, 2001ABSTRACTThere has been an increasing demand for high temperature soft magnetic materials with mechanical properties better than those of existing commercial materials such as FeCo alloys. We have designed new magnetic composites by reinforcing FeCo alloys with high strength tungsten fibers.
Ronghai Yu +5 more
openaire +1 more source
Permeability of hybrid soft magnetic composites
Acta Materialia, 2011Abstract The magnetic permeability of a three-phase hybrid soft magnetic composite (SMC) is formulated, extending Eshelby’s equivalent inclusion method to account for the three-phase microstructure of this SMC. The composite contains two kinds of ellipsoidal fillers dispersed in a matrix. All of the components have distinct magnetic properties.
Y. Pittini-Yamada +3 more
openaire +1 more source
Soft magnetic composites-materials and applications
IEEE International Electric Machines and Drives Conference, 2003. IEMDC'03., 2003The group of soft magnetic composites (SMCs) have expanded by the introduction of new materials with significantly improved low-medium frequency properties, which has made SMCs a viable alternative to steel laminations in a range of new applications, such as rotating machinery, sensors and fast switching solenoids.
L.O. Hultman, A.G. Jack
openaire +1 more source