Showing papers on "Saturation (magnetic) published in 2022"
TL;DR: A new hybrid analytical model combining subdomain model and equivalent magnetic network for permanent magnet vernier machines, which are easy to get saturated due to the air-gap field modulation effect, is proposed to be more efficient than the FEA model while maintaining high accuracy.
Abstract: This article proposes a new hybrid analytical model combining subdomain model and equivalent magnetic network for permanent magnet vernier machines, which are easy to get saturated due to the air-gap field modulation effect. The key is representing saturation effect by iterating equivalent surface current as part of interface conditions in the proposed subdomain model. First, five subdomains are divided to calculate magnetic field distribution. The equivalent surface current is utilized as the boundary constraint between subdomains and iron core. Second, the equivalent magnetic network is established based on stator structure, and the fluxes flowing into flux modulation poles are equivalent as the magnetic flux sources. Node magnetic potentials can be achieved with the application of Kirchhoff's law of current. Then, the equivalent surface current is updated for convergence by node magnetic potential to accurately predict saturated performance. Finally, a prototype is manufactured, and the effectiveness of the proposed hybrid model is verified by the finite-element analysis (FEA) and experimental results. The hybrid model combines the subdomain model and the equivalent magnetic network model to complement each other and it is demonstrated to be more efficient than the FEA model while maintaining high accuracy.
13 citations
TL;DR: In this article, the authors investigated the crystal structure, microstructure, and magnetic properties of BFCO samples, and the potential application value at millimeter waveband was discussed.
10 citations
TL;DR: In this paper, the magnetization correlations in amorphous alloy ribbons Fe-Cu-Nb-Si-B were studied by analysis of approach to magnetic saturation within the random magnetic anisotropy model.
10 citations
TL;DR: In this paper, transverse magnetic field annealing after having been nano-crystallized (TA) was performed to the as-quenched Fe76Si13B8Nb1.5 alloy, and the dynamic properties, microstructure, and dynamic domains were in detail studied comparing with those annealed without magnetic field (NA).
8 citations
TL;DR: The partial substitution by bismuth (Bi) is aimed to improve magnetic properties of barium hexaferrites from the sol-gel auto-combustion synthesis.
6 citations
TL;DR: In this article, the M-H hysteresis loops measured at 300 K, using the superconducting quantum interface device-type magnetometer, were compared with pristine single crystal MoS2 (MoS2-SC), nanoparticle MoS 2-NP and two-dimensional (2D) bi-layer-MoS 2 thin film.
5 citations
TL;DR: In this article, the photocatalyst was successfully synthesized by a sonochemical method and post-treated with microwaves, and the energy bandgap was calculated using the Kubelka-Munk (KM) model.
4 citations
TL;DR: In this article, CoFe2O4 nanoparticles were dispersed in a SiO2 matrix prepared by the co-precipitation method and Rietveld refinement was performed to estimate structural parameters and distribution of cations at tetrahedral and octahedral sites respectively.
3 citations
TL;DR: In this article, the structural and magnetic properties of chemically disordered FePt ferromagnetic films of different thicknesses that have been sputter-deposited on ferroelectric PMN-PT (011) single crystals were studied.
2 citations
TL;DR: In this paper, the effect of Al addition on the microstructure and magnetostriction properties of melt-spun Fe81Ga19 alloy thin strips was investigated. And the analysis of the experimental data indicated that rapid quenching and Al addition led to relaxation of the crystal structure, which was the main reason for the increase in the saturation magnetostrictive strain of the Alloy thin strips.
1 citations
TL;DR: In this article, the competition between the stability of the cubic and hexagonal full Heusler alloys and the implications concerning their magnetic properties were systematically studied through the detailed structural and magnetic characterization of the Fe2Mn(Si1−xGex) system.
TL;DR: In this paper, the microstructure revealed that the grain size and density increased upon cobalt doping due to the higher ionic mobility of cobalt than magnesium ions, and the dielectric behavior was explained based on the Maxwell-Wagner two-layer model.
Abstract: Mg1-xCoxFe2O4 (x = 0−0.15) ferrite powders were synthesized by the solid-state reaction followed by a liquid phase sintering at 1050 °C using 3 wt% Bi2O3 as a sintering aid. The grain size and density increased upon cobalt doping due to the higher ionic mobility of cobalt than magnesium ions. The microstructure revealed that, upon cobalt doping, the average grain size increased from 2.43 ± 1.52–3.59 ± 2.05 μm. The highest density of 4.52 ± 20 g/cm3 was obtained for x = 0.11. The saturation magnetizations of the samples progressively increased from 23 to 52 emu/g by increasing the cobalt content. The DC resistivity increased up to 6.45 × 10+10 Ω.cm for x = 0.11. The dielectric behavior was explained based on the Maxwell-Wagner two-layer model. The samples with x = 0; 0.03; 0.07; and 0.15 showed a high-lossy behavior, whereas with x = 0.11 exhibited a low tanδ of 0.048 and the dielectric constant of 16.8 at 1 kHz.
TL;DR: In this paper, a BaTiO3-La2NiMnO6 (BTO-LNMO) composite sample was prepared via solid-state sintering route.