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Optimization of Soft Magnetic Properties in Fe₈₂Nb₂B₁₄RE₂ (RE = Y, Gd, Tb and Dy) Group of Amorphous Alloys

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Chrobak A., Haneczok G., Zivotsky O., Hendrych A., Kansy J., Kotur B.

Acta Physica Polonica A

2016

vol. 130

issue 4

916-919

Enhancement of soft magnetic properties in the selected group of amorphous alloys was examined by different experimental methods. It was shown that permeability for annealed samples (at T_{a} for 1 h; 300 K < T_{a} < 900 K) plotted vs. T_{a} shows a maximum at which is 700, 725, 725, and 750 K for Fe₈₂Nb₂B₁₄Y₂, Fe₈₂Nb₂B₁₄Gd₂, Fe₈₂Nb₂B₁₄Tb₂ and Fe₈₂Nb₂B₁₄Dy₂ alloy, respectively. For samples after the optimization annealing permeability is at least 10 times higher than in the as-quenched state. The optimized microstructure is free of iron nanograins and corresponds to so-called relaxed amorphous phase.

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1 Acta Physica Polonica A

1 2016

1 Chrobak A.

1 Haneczok G.

1 Hendrych A.

1 Kansy J.

1 Kotur B.

1 Zivotsky O.

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Optimization of Soft Magnetic Properties in Fe₈₂Nb₂B₁₄RE₂ (RE = Y, Gd, Tb and Dy) Group of Amorphous Alloys