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Influence of Gd addition on the magnetism and structure of Finemet-type nanocrystalline alloys

Domenii publicaţii > Fizica + Tipuri publicaţii > Articol în revistã ştiinţificã

Autori: Ovidiu Crisan, J. M. Le Breton, A. D. Crisan and F. Machizaud

Editorial: Journal of Magnetism and Magnetic Materials, 272-276, p.1396-1397, 2004.

Rezumat:

The effect of rare earth addition in the structure and magnetism of melt spun nanocrystalline Finemet-type alloys devitrified from amorphous precursor ribbons is discussed. Starting with the initial composition Fe73.5Cu1Nb3Si13.5B9 an amount of 5 at% Gd is introduced into the primary alloy. The purpose is to enable after appropriate recrystallization the occurrence of hard and soft magnetic, suitably dispersed, exchange-coupled nanograins and to determine the transformation sequences of the crystallization process and the obtained crystallization products.

Cuvinte cheie: Finemet-type ribbon; Crystallization; Hard–soft exchange coupling