Results 291 to 300 of about 11,255,110 (351)

Magnetic losses and thermal analysis in a magnetic gear for wind turbine

2018 Thirteenth International Conference on Ecological Vehicles and Renewable Energies (EVER), 2018
This article deals with the magneto-thermal analysis of a concentric magnetic gear for integration in a 6 MW 12.5 rpm wind turbine. In this drive, heat generated by magnetic losses must be extract by a cooling system in order to maintain an acceptable temperature.
Desvaux, Melaine, Bildstein, Hugo, Multon, Bernard, Ben Ahmed, Hamid, Sire, Stephane, Fasquelle, Aurelie, Laloy, Daniel   +6 more
openaire   +2 more sources

Losses in magnetic insulators

1983 EIC 6th Electrical/Electronical Insulation Conference, 1983
Substitution of magnetic ions in some semiconducting alloys produces materials with interesting properties having high potential for device applications. On the other hand, substitution of specific ions in magnetic materials produces p- or n-type semiconducting properties.
openaire   +1 more source

Fe-based amorphous powder cores with low core loss and high permeability fabricated using the core-shell structured magnetic flaky powders

Journal of Magnetism and Magnetic Materials, 2020
Fe-based amorphous powder cores based on the industrial flaky FeSiBCCr magnetic powders coated with high-quality inorganic (SiO2) insulating layer via a sol-gel method were successfully fabricated to improve the soft magnetic properties of powder cores ...
Haibo Sun, Ce Wang, Jinghui Wang, Mingguang Yu, Zhi-Ming Guo   +4 more
semanticscholar   +1 more source

Magnetic losses in soft magnetic materials

2015
Soft magnetic materials are important in modern networks used for the distribution of electrical energy. They are part of transformers and generators as core material for example. The efficiency of those transformers and generators is among other things limited by the fact that energy has to be used to change the magnetization of the material.
openaire   +1 more source

High permeability and low loss bioinspired soft magnetic composites with nacre-like structure for high frequency applications

Acta Materialia, 2019
Bioinspired Soft Magnetic Composites (SMCs) with nacre-like structure were fabricated using highly planar arranged flaky-Sendust. These SMCs show particularly high permeability and low loss, thus exhibiting great potential for high frequency magnetic ...
Wangchang Li, H. Cai, Yue Kang, Y. Ying, Jing Yu, Jingwu Zheng, L. Qiao, Yekun Jiang, S. Che   +8 more
semanticscholar   +1 more source

How Accurate are Magnetic Loss Measurements?

2024 IEEE International Magnetic Conference - Short papers (INTERMAG Short papers)
Intermag 2024 Presentation: DF: Soft Magnetic Alloys: Materials and ...
Massimo Pasquale, Enzo Ferrara, Nicoleta Banu, Fausto Fiorillo, Luciano Rocchino, Michal Ulvr, Franziska Weickert, Korbinian Pfnuer, Joachim Luedke, Katja Hoffmann, Stuart Harmon, Daniel Brunt, Adam Wilson   +12 more
openaire   +1 more source

Reduction of hysteresis loss in soft magnetic composites under transverse magnetic field

, 2020
A method to reduction hysteresis loss of soft magnetic composites (SMCs) is reported in this Letter. It is found that the power loss of SMCs reduces about 1/3 at the expanse of less than 10% decreases of permeability when a transverse magnetic field is ...
S. Feng, J. Ni, F. Hu, X. Kan, Q. Lv, Y. J. Yang, X. Liu   +6 more
semanticscholar   +1 more source

Critical behaviour of magnetic losses

Physica Status Solidi (a), 1974
The critical exponent γ of the complex susceptibility χ = χ′ – iχ″ was measured in the temperature range 5 × 10−5 ≦ ϵ = |T – Tc|Tc ≦ 10−2 at frequencies between 0.1 and 20 kHz in a field of 5 mOe for very pure polycrystalline nickel. For the real part at zero frequency χ′(0) = χo(0)ϵ–γ and T > Tc γ = 1.41 ± 0.02 is obtained and χ′o(0) = (3.4 ± 0.8 ...
N. Herzum, K. Stierstadt, L. Wunsch
openaire   +1 more source

A finite oxidation strategy for customizing heterogeneous interfaces to enhance magnetic loss ability and microwave absorption of Fe-cored carbon microcapsules

Nano Reseach, 2023
Meixi Zhang, Laisen Wang, Susu Bao, Zhijia Song, Wenjiao Chen, Zhiyuan Jiang, Zhaoxiong Xie, Lansun Zheng   +7 more
semanticscholar   +1 more source

Recent Advances in Structural Design of Carbon/Magnetic Composites and their Electromagnetic Wave Absorption Applications.

Small
Electromagnetic pollution protection and military stealth technologies underscore the urgent need to develop efficient electromagnetic wave-absorbing materials (EWAMs).
Haiyang Peng, Da Zhang, Zhipeng Xie, Shuiqing Lu, Yichang Liu, Feng Liang   +5 more
semanticscholar   +1 more source