Results 1 to 10 of about 7,856,512 (343)

Multiprincipal Element M2FeC (M = Ti,V,Nb,Ta,Zr) MAX Phases with Synergistic Effect of Dielectric and Magnetic Loss [PDF]

Advanced Science, 2023
Electromagnetic (EM) wave pollution is harmful to human health and environment, thus it is absolutely important to develop new electromagnetic wave absorbing materials.
Lu Chen, Youbing Li, Biao Zhao, Shanshan Liu, Huibin Zhang, Ke Chen, Mian Li, Shiyu Du, Faxian Xiu, Renchao Che, Zhifang Chai, Qing Huang   +11 more
doaj   +3 more sources

Magnetic Loss Analysis in Coaxial Magnetic Gears [PDF]

Electronics, 2019
This paper proposes a procedure for computing magnetic losses in coaxial magnetic gears. These magnetic structures are made of permanent magnets and ferromagnetic poles in relative motion transferring torque between two shafts in a contactless way. The loss computation in magnetic materials is crucial to define the system performance.
Filippini M., Alotto P., Cirimele V., Repetto M., Ragusa C., Dimauro L., Bonisoli E.   +6 more
openaire   +2 more sources

Properties of dynamic magnetic loss of ferrite

AIP Advances, 2018
The B-H loop of ferrite becomes narrower with a decrease in the excitation frequency. However, even at frequencies lower than 1 kHz, the B-H loop exhibits a certain minimum width, which is referred to as the (DC) hysteresis loop, and its area corresponds
Hideo Saotome, Keisuke Azuma, Hiroki Kizuka, Takuma Tanaka   +3 more
doaj   +2 more sources

Sensorineural Hearing Loss after Magnetic Resonance Imaging [PDF]

Case Reports in Radiology, 2013
Magnetic resonance imaging (MRI) devices produce noise, which may affect patient’s or operators’ hearing. Some cases of hearing impairment after MRI procedure have been reported with different patterns (temporary or permanent, unilateral or bilateral ...
Abolfazl Mollasadeghi, Amir Houshang Mehrparvar, Saeid Atighechi, Mohammad Hossein Davari, Pedram Shokouh, Mehrdad Mostaghaci, Maryam Bahaloo   +6 more
doaj   +4 more sources

Loss-Optimized Design of Magnetic Devices

Micromachines
Maximizing efficiency, power density, and reliability stands as paramount objectives in the advancement of power electronic systems. Notably, the dimensions and losses of magnetic components emerge as primary constraints hindering the miniaturization of ...
Yuhu Zhao, Zhengfeng Ming, Chaofan Du
doaj   +3 more sources

Electromagnetic Property Modulation of Flaky Ferromagnetic 304 Stainless-Steel Powders for Microwave Absorption at Elevated Temperatures

Magnetochemistry, 2023
Soft magnetic metallic absorbents suffer from severe oxidation, reduction in permeability and deterioration in microwave absorption when exposed to high temperatures.
Bolin Yang, Yifan Xu, Zhihong Chen, Hang Yang, Yuchen Hu, Haoqin Wu, Mingfeng Xing, Jianguo Guan, Wei Li   +8 more
doaj   +1 more source

High-entropy spinel ferrites MFe2O4 (M = Mg, Mn, Fe, Co, Ni, Cu, Zn) with tunable electromagnetic properties and strong microwave absorption

Journal of Advanced Ceramics, 2022
Ferrites are the most widely used microwave absorbing materials to deal with the threat of electromagnetic (EM) pollution. However, the lack of sufficient dielectric loss capacity is the main challenge that limits their applications.
Jiabin Ma, Biao Zhao, Huimin Xiang, Fu-Zhi Dai, Yi Liu, Rui Zhang, Yanchun Zhou   +6 more
doaj   +1 more source

Influence of the powders phase composition and sintering atmosphere on the structure and magnetic properties of Mn-Zn ferrites

Chimica Techno Acta, 2023
The magnetic properties of Mn-Zn ferrites depend strongly on the microstructure, chemical and phase composition. In this paper the effect of synthesis and sintering conditions on the structure, phase composition and properties of Mn-Zn ferrites is ...
Ruslan Kuzmin, Roman Khabirov, Anna Mass, Elena Lozhkina   +3 more
doaj   +1 more source

AC Magnetic Loss Reduction of SLM Processed Fe-Si for Additive Manufacturing of Electrical Machines

Energies, 2021
Additively manufactured soft magnetic Fe-3.7%w.t.Si toroidal samples with solid and novel partitioned cross-sectional geometries are characterized through magnetic measurements. This study focuses on the effect of air gaps and annealing temperature on AC
H. Tiismus, A. Kallaste, A. Belahcen, M. Tarraste, T. Vaimann, A. Rassõlkin, B. Asad, Payam Shams Ghahfarokhi   +7 more
semanticscholar   +1 more source

Microstructures, absorption and adhesion evolution of FeCoCr/silicone resin coatings at elevated temperature

Frontiers in Materials, 2023
Heat-resistant magnetic microwave absorption coatings are vital important for the stealth safety of apparatus working at elevated temperature or electromagnetic compatibility of high density/power electronic devices.
Dachao Yuan, Zhiyong Chen, Changwei Cai, Bolin Yang, Yujie Wang, Zhihong Chen   +5 more
doaj   +1 more source