The Experts below are selected from a list of 324 Experts worldwide ranked by ideXlab platform
Gaoyuan Ouyang - One of the best experts on this subject based on the ideXlab platform.
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review of fe 6 5 wt si high Silicon Steel a promising soft magnetic material for sub khz application
Journal of Magnetism and Magnetic Materials, 2019Co-Authors: Gaoyuan Ouyang, Xi Chen, Yongfeng Liang, Chad R MacziewskiAbstract:Abstract To meet the growing need for energy efficiency in power electronics and electric machines, a number of new soft magnetic materials are being investigated. Among them, high Silicon Fe-Si alloy has been recognized as a promising candidate for low-to-medium-frequency applications. Compared to the currently most widely used 3 wt% Silicon Steel, the Steel containing 6.5 wt% Si possesses more favorable properties, including high electrical resistivity, good saturation magnetization, and near-zero magnetostriction. However, the high Silicon content facilitates the formation of ordered phases, resulting in severe brittleness that prohibits mass production using the economical conventional processing methods. A number of new processing routes have been investigated and inspiring progress has been made. Prototypes of motors and transformers using high Silicon Steel have been demonstrated with improved efficiency and power density. If the processing cost and limitations of size and shape are properly addressed, high Silicon Steel is expected to be widely adopted by the industries. Among all the investigated processing techniques, rapid solidification appears to be the most cost-effective method for mass producing thin sheet of high Silicon Steel. This paper reviews the current state-of-the-art of the Fe-Si based soft magnetic materials including their history, structure, properties, processing, and applications.
Takeshi Kubota - One of the best experts on this subject based on the ideXlab platform.
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Recent Progress on Non-oriented Silicon Steel
Steel Research International, 2005Co-Authors: Takeshi KubotaAbstract:Control of crystalline orientation and consequent enhancement of magnetic properties are important for decreasing core loss of non-oriented Silicon Steel as well as grain-oriented Silicon Steel. Through the development ofspecial process techniques to produce clean refined Steel, it is now possible to use any element to improve the crystalline texture control of Steel without producing harmful effects. Utilization of these effects have actually lowered the core loss and raised the magnetic flux density of the products, and a product series of high-efficiency non-oriented Silicon Steel has been developed. Recently, demand has grown for non-oriented Silicon Steel with particular properties, such as lower core loss at high frequencies or high strength, as high-speed motors have progressed in regard to high efficiency and miniaturization. In response to this trend, non-oriented thin gauge Silicon Steel with a thickness of 0.20 and 0.15mm and high strength non-oriented thin gauge Silicon Steel with the same thickness but a yield strength of more than 570MPa and 780MPa have been developed.
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Local distribution on magnetic properties in grain-oriented Silicon Steel sheet
Journal of Applied Physics, 1998Co-Authors: Masato Enokizono, Ikuo Tanabe, Takeshi KubotaAbstract:Grain-oriented Silicon Steel is the most important soft magnetic material used as core material of large transformers, large rotating machines, and pole transformers. Total loss of grain-oriented Silicon Steel tends to become lower with an increasing degree of texture. However, the material which has a higher degree of texture ordinarily contains larger grains, and the materials which have larger grains show higher total loss due to increased eddy current loss. As the gauge is reduced, the rate of decrease in total loss becomes lower for the thinner gauge due to increased hysteresis loss. However, the investigation of local magnetic properties due to grain situation in this sheet was not discussed from the viewpoint of the distribution of localized magnetic properties, for example, iron loss, hysteresis loop, behavior H vector (magnetic field strength) and B vector (Magnetic flux density).
Chad R Macziewski - One of the best experts on this subject based on the ideXlab platform.
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review of fe 6 5 wt si high Silicon Steel a promising soft magnetic material for sub khz application
Journal of Magnetism and Magnetic Materials, 2019Co-Authors: Gaoyuan Ouyang, Xi Chen, Yongfeng Liang, Chad R MacziewskiAbstract:Abstract To meet the growing need for energy efficiency in power electronics and electric machines, a number of new soft magnetic materials are being investigated. Among them, high Silicon Fe-Si alloy has been recognized as a promising candidate for low-to-medium-frequency applications. Compared to the currently most widely used 3 wt% Silicon Steel, the Steel containing 6.5 wt% Si possesses more favorable properties, including high electrical resistivity, good saturation magnetization, and near-zero magnetostriction. However, the high Silicon content facilitates the formation of ordered phases, resulting in severe brittleness that prohibits mass production using the economical conventional processing methods. A number of new processing routes have been investigated and inspiring progress has been made. Prototypes of motors and transformers using high Silicon Steel have been demonstrated with improved efficiency and power density. If the processing cost and limitations of size and shape are properly addressed, high Silicon Steel is expected to be widely adopted by the industries. Among all the investigated processing techniques, rapid solidification appears to be the most cost-effective method for mass producing thin sheet of high Silicon Steel. This paper reviews the current state-of-the-art of the Fe-Si based soft magnetic materials including their history, structure, properties, processing, and applications.
Chang Geng Zhang - One of the best experts on this subject based on the ideXlab platform.
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Effects of Uniaxial Stress Along Different Directions on Alternating Magnetic Properties of Silicon Steel Sheets
IEEE Transactions on Magnetics, 2020Co-Authors: Yong Jian Li, Chang Geng ZhangAbstract:Extensive research has shown that Silicon Steel sheets in electrical machines and power transformers are usually working under compressive or tensile stress, which affects both magnetic properties of Silicon Steel sheets and performance of electromagnetic devices. In this article, a magnetic property measurement system considering the stress effect has been developed and constructed based on the large cross-shaped single-sheet tester (LCSST). The uniformity of the stress distribution for LCSST is verified by the finite-element method. The B-H magnetic property of a specimen of non-oriented Silicon Steel 50JN470 in the direction of applied stress is measured by the proposed LCSST, and the results are in good agreement with those measured by the rectangle single-sheet tester (RSST) made by the Brockhaus Company. The RSST, however, cannot measure the effects of uniaxial stress on the magnetic properties. This article presents and analyzes the extensive experimental results of magnetic properties with uniaxial stress applied along both transverse and rolling directions ranging from 7 MPa compressive stress to 7 MPa tensile stress.
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Vector Magnetic Properties Measurement of Silicon Steel Under Biased Magnetic Excitation Along Laminated Direction
IEEE Transactions on Magnetics, 2019Co-Authors: Chang Geng Zhang, Yong Jian Li, Xinxiao Yan, Qing Xin YangAbstract:Rotational magnetic flux in the plane of Steel laminations causes core losses which far exceed than alternating magnetic flux. Traditional testing methods such as Epstein frame detected only in one direction may lead to inaccurate predictions of core losses. This paper developed a 3-D magnetic properties testing device to measure the magnetic properties of high grain-oriented Silicon Steel. By using the automatic control system and novel surface B-H sensing coils, the dynamic magnetic hysteresis properties of the Silicon Steel are accurately measured with a static magnetic field along the laminated direction of the specimen. Finally, an ellipsoid magnetic anisotropy model is established which parameters can be identified by the magnetic measurement results with biased magnetic field.
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Rotational magnetic properties of Silicon Steel laminations by 3-D magnetic properties measurement
2015 IEEE International Conference on Applied Superconductivity and Electromagnetic Devices (ASEMD), 2015Co-Authors: Yong Jian Li, Chang Geng Zhang, Lei Cao, Qing Xin YangAbstract:Silicon Steel laminations have the complex nonlinear magnetic properties which is critical part of electrical performance in electrical equipment. In order to reduce the energy consumption and optimize the electrical products, the accurate simulation in the numerical analysis of electromagnetic field is necessary. Three-dimensional (3-D) magnetic properties measurement of the Silicon Steel sheets under widely frequency may be a more suitable method to obtain the accurate magnetic properties. Using the feedback control, the circular rotating magnetic fields are well controlled and the magnetic properties of laminated Silicon Steel are tested under this magnetic field. By using this new designed 3-D tester, rotational magnetic hysteresis of the laminated Silicon Steels are firstly measured and analyzed.
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Design and Analysis of a Novel 3-D Magnetization Structure for Laminated Silicon Steel
IEEE Transactions on Magnetics, 2014Co-Authors: Yong Jian Li, Qing Xin Yang, Zhigang Zhao, Chang Geng ZhangAbstract:A novel 3-D magnetic properties tester for laminated Silicon Steel specimen has been designed and constructed. The magnetization structure is the critical part of the tester especially for the magnetic properties of the laminated Silicon Steel in perpendicular direction of grain oriented. To guarantee the experimental precision and accurately analyze the 3-D magnetic properties of the laminated Silicon Steel, a symmetrical 3-D magnetic flux path in the magnetization structure fit for given dimension of specimen has been calculated and modeled. Magnetic flux in each direction has been homogenized and concentrated on the top of the core poles through finite element analysis. Therefore, magnetic properties in each direction of the laminated specimen can be really concerned and analyzed in practical engineering.
M. Nakano - One of the best experts on this subject based on the ideXlab platform.
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Thin 3% [100]textured Silicon Steel sheet with low loss
IEEE Transactions on Magnetics, 1999Co-Authors: M. Nakano, K. Ishiyama, T. Kadotani, H. Fukunaga, Y. Yamashiro, Ken Ichi AraiAbstract:Magnetic properties of thin 3% [100] textured Silicon Steel sheets with low loss were investigated. Annealing at 1200/spl deg/C in sulfur atmosphere enabled us to obtain the thin sheets containing only [100] grains and consequently the coercive force reached 10 A/m. We further advanced the production method of thin [100] textured Silicon sheets by using sulfur in solution instead of a sulfur atmosphere.
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Production of ultra thin grain oriented Silicon Steel sheets
IEEE Transactions on Magnetics, 1995Co-Authors: M. Nakano, K. Ishiyama, K.l. AraiAbstract:Grain texture and magnetic properties of ultra thin Silicon Steel sheets were investigated. The sheets were produced using two kinds of starting materials. One was conventional grain oriented Silicon Steel sheet and the other was hot rolled Silicon Steel. Ultra thin sheets were obtained by cold rolling with intermediate annealing. By annealing in a high vacuum a recrystallization using surface energy occurred and very sharp (110)[001] texture was obtained in sheets of 5-8 /spl mu/m thick. The B/sub 9/ of the ultra thin Silicon Steel sheets obtained were over 1.95 T.
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(110) [001] Grain Growth in Silicon Steel Sheets of 30 μm Thickness
IEEE Translation Journal on Magnetics in Japan, 1994Co-Authors: M. Nakano, K. Ishiyama, S. Agatsuma, K.i. AraiAbstract:Thin grain-oriented Silicon Steel sheets have the lowest iron loss at a thickness of 30 μm. We observed the recrystallization behavior and magnetic properties of 30 μm thick Silicon Steel sheets, and compared the results with those of 60 μm thick Silicon Steel sheets. The recrystallization processes in the two types of sheet were found to be different. The primary recrystallized 30 μm thick Silicon Steel sheets did not have a strong (110) [001] texture or other orientation; consequently secondary recrystallization did not occur. However, at annealing temperatures above 1050°C, (110) [001] grains grew selectively. Thus we were able to obtain very thin grain-oriented Silicon Steel sheets with a thickness of 30 μm.
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Effects of Stress Due to Cutting on Magnetic Characteristics of Silicon Steel
IEEE Translation Journal on Magnetics in Japan, 1992Co-Authors: T. Nakata, M. Nakano, K. KawaharaAbstract:Although deterioration of the magnetic characteristics of Silicon Steel due to shearing stress has been observed, the degree of deterioration has not previously been assessed quantitatively. With the recent development of a technique for measuring the microscopic distribution of flux density, the effects of stress on flux distribution can now be investigated quantitatively. In this paper the deterioration of the magnetization curve of nonoriented Silicon Steel due to shearing stress is examined.
