Magnetic properties and eddy current losses in Fe-based soft magnetic composites

2016 ◽  
Vol 52 (3-4) ◽  
pp. 1433-1441 ◽  
Author(s):  
Ling Xiao ◽  
Ming Li ◽  
Wenjie Cheng ◽  
Hongwei Fan ◽  
Gang Liu ◽  
...  
2018 ◽  
Vol 123 (23) ◽  
pp. 235109 ◽  
Author(s):  
Xiaotao Ren ◽  
Romain Corcolle ◽  
Laurent Daniel

2016 ◽  
Vol 5 (2) ◽  
pp. 59 ◽  
Author(s):  
X. Ren ◽  
R. Corcolle ◽  
L. Daniel

Soft magnetic composites (SMC) are a promising alternative to laminated steel in many Electrical Engineering applications. This is largely owing to their low level of eddy current losses. The electromagnetic behavior of SMC in electromagnetic devices cannot be easily predicted using standard numerical techniques such as the finite element method, mostly due to the computational cost required to model the material microstructure. Another difficulty lies in the high property contrast between the matrix and the inclusions. In this paper we propose a homogenization strategy to define the equivalent electromagnetic properties of SMC. For components made of SMC, the equivalent conductivity and permeability can be determined. These equivalent properties can be used to calculate eddy current losses or introduced into structural analysis tools to design electromagnetic devices.


2012 ◽  
Vol 48 (11) ◽  
pp. 3470-3473 ◽  
Author(s):  
Carlo Appino ◽  
Oriano Bottauscio ◽  
Olivier de la Barriere ◽  
Fausto Fiorillo ◽  
Alessandra Manzin ◽  
...  

2013 ◽  
Vol 113 (17) ◽  
pp. 17A322 ◽  
Author(s):  
C. Appino ◽  
O. de la Barrière ◽  
F. Fiorillo ◽  
M. LoBue ◽  
F. Mazaleyrat ◽  
...  

Author(s):  
Ling Xiao ◽  
Yanhua Sun ◽  
Chunhua Ding ◽  
Lihua Yang ◽  
Lie Yu

Soft magnetic composites (SMCs) can be described as soft magnetic powders covered by electrically insulating layers. In this work, iron powders with high purity and organic-silicon epoxy resin were chosen for good magnetic properties, thermal stability, and mechanical properties, respectively. The effect of amount of resin, different annealing temperatures on the microstructure, and performance of SMCs was investigated. Results show that organic-silicon epoxy resin has excellent properties as dielectric coating materials for coating iron powders and maximum heat-resistant temperature is about 400 ℃. According to magnetic properties and flexural strength analysis, the optimum annealing temperature of organic-silicon epoxy resin-coated composite is 200 ℃. Furthermore, the finite element analysis indicates that the strength of the whole composites is related to the adhesion of resin and iron and the strength of resin itself.


2016 ◽  
Vol 411 ◽  
pp. 12-17 ◽  
Author(s):  
M. Lauda ◽  
J. Füzer ◽  
P. Kollár ◽  
M. Strečková ◽  
R. Bureš ◽  
...  

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