Bulk Fe-Co-Ni-Zr-Nb-B Amorphous Materials

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概要

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• (Fe,Co,Ni)-(Zr,M)-B (M=Nb,Ta,Ti) amorphous alloys exhibit a large supercooled liquid region(ΔT_x) up to 90 K that have allowed us to prepare bulk amorphous samples with thickness up to 2mm by mould casting method. These alloys have also good soft magnetic properties, i.e. saturation magnetisation (B_s) up to 1.1 T, coercive field (H_c) of 3 A/m and permeability of about 10000 at 500Hz in the as-cast state. The Curie temperatures (T_c) of these amorphous alloys are between 513 and 573 K. The thermal and thermomagnetic annealing applied to (Fe,Co,Ni)_<70>(Zr,M)_<10>B_<20> (M=Nb,Ta,Ti) amorphous samples cause the change of their amorphous structure and magnetic properties. The obtaining of these bulk amorphous alloys with good soft magnetic properties will allow using them in many engineering applications.

• 社団法人日本磁気学会の論文
• 1999-01-20

著者

• Chiriac Horia

  The National Institute Of Reserch And Development For Technical Physics

• Lapu Nicoleta

  The National Institute of Research and Development for Technical Physics

• Lupu N

  National Inst. Res. And Dev. Technical Physics Iasi Rom

関連論文

• Bulk Fe-Co-Ni-Zr-Nb-B Amorphous Materials

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