Preparation of soft magnetic alloys Fe100-x-ySixPy (0 < X < 9,0 < y < 0.6 wt%), using solid phase diffusion-sintering method
Anestiev, L. × De Wulf, M. Froyen, Ludo Dupre, L. Melkebeek, J. #
North-Holland Pub. Co.
Journal of Magnetism and Magnetic Materials vol:281 issue:1 pages:124-134
A solid phase sintering diffusion (SPSD) method was used at the production of the soft magnetic alloys Fe100-x-ySixPy (0<x<9, 0<y<0.6 in wt%) from Fe-based powders. The method allows in situ formation of the desired composition of the final product during the sintering process and eliminates the production difficulties due to the brittleness of the alloying powders. A mathematical model of the diffusion processes at SPSD is proposed, which allows estimation of the processing time required for homogenisation of the alloying elements. The magnetic properties of the materials Fe100-x-ySixPy (0<x<9, 0<y<0.6 wt%) obtained by means of the SPSD method have been studied. It was found that alloying with Si and P leads to considerable increase of the initial and maximal magnetic permeability and reduction of the total power losses. (C) 2004 Elsevier B.V. All rights reserved.