3D vector magnetic properties of soft magnetic composite material

Abstract

Soft magnetic composite (SMC) materials are especially suitable for construction of electrical machines with complex structures and three-dimensional (3-D) magnetic fluxes. In the design and optimization of such 3-D flux machines, the 3-D vector magnetic properties of magnetic materials should be properly determined, modeled and applied for accurate calculation of the magnetic field distribution, parameters and performance. This paper presents the measurement of 3-D vector magnetic properties and determination of 3-D reluctivity tensor of SMC. The reluctivity tensor is a key factor for accurate numerical analysis of magnetic field in a 3-D flux SMC motor.

Soft magnetic composite materials (SMCs)

“…Insulated iron powder (Fig. 1) offers several advantages over traditional steel in some applications, for example, the isotropic nature of the SMC combined with the unique shaping possibilities opens up for 3D-design solutions [55,56]. In recent years, effects of particle size, particle composition (Fe-Ni, Fe-Ni-Co, Fe-Si) [1][2][3][4][5][6][7][8], compaction parameters (warm compaction, pressure, lubricant), resin and wet chemical methods for creation of insulation layer around particles have been verified [2,6,7,53,60].…”

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

“…Compared with the conventional laminated steel cores, SMCs offer enormous advantages, such as three-dimensional isotropic magnetic properties, low eddy-current core loss at high frequency, and high adaptability to complex machine design. Hence, it has replaced the laminated steel cores in most fields of electric motors, transformer cores, power switching inductors, online noise filters, and chokes [2][3][4][5].…”

Morphology controllable synthesis of nickel nanopowders by chemical reduction process

“…Nickel nanopowders have been widely studied and used because of their high activities in hydrogenation, hydrotreating and stream-reforming [4][5][6]. Recently, high-density magnetic recording media and magnetic fluid have also been investigated for their specific magnetism [7][8][9][10].…”