Microstructural optimization of NO SiFe alloys using the Preisach theory

Author

Dupré, Luc R. ; Melkebeek, Jan

Author_Institution

Dept. of Electr. Eng., Ghent Univ., Belgium

Volume

36

Issue

5

fYear

2000

fDate

9/1/2000 12:00:00 AM

Firstpage

3451

Lastpage

3456

Abstract

In this paper we report on the modeling of magnetic losses in laminated non oriented SiFe alloys, used in electromagnetic devices. It is shown that the integrated lamination dynamic Preisach model allows us to optimize the microstructure taking into account the (distorted) unidirectional flux patterns, appearing in the application. The experimentally obtained effects of the average grain size and the crystallographic texture on each material parameter defined in the Lorentzian-Preisach distribution function and on the switching parameter k_d in the dynamic Preisach model are exploited

Keywords

crystal microstructure; eddy current losses; grain size; iron alloys; laminations; magnetic leakage; magnetic switching; numerical analysis; optimisation; silicon alloys; Lorentzian-Preisach distribution function; Preisach theory; SiFe; average grain size; crystallographic texture; dynamic Preisach model; laminated nonoriented alloys; magnetic losses modeling; microstructural optimization; numerical analysis; switching parameter; unidirectional flux patterns; Crystalline materials; Crystallography; Electromagnetic devices; Electromagnetic modeling; Grain size; Lamination; Magnetic devices; Magnetic flux; Magnetic losses; Microstructure;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.908858

Filename

908858