Title :
Design and preparation of new Fe-based bulk amorphous alloys torroids for applications
Author :
Chiriac, H. ; Lupu, Nicoleta ; Tibu, M.
Author_Institution :
Nat. Inst. of Res. & Dev. for Tech. Phys., Iasi, Romania
fDate :
March 30 2003-April 3 2003
Abstract :
In this paper, we present results on the preparation and magnetic characterization over a wide frequency range of (Fe,Co,Ni)/sub 90-x/M/sub 10/B/sub x/ (x = 5-30 at%) (M= Zr, Ti) bulk amorphous alloys. The materials were prepared by Cu mould casting method. Ac magnetic permeability (/spl mu//sub e/), electrical resistivity (/spl rho//sub RT/), as well as the temperature dependence of saturation induction (B/sub s/) and coercive field (H/sub c/) were determined by using an AC fluxmetric method in fields no larger than 1000A/m.
Keywords :
amorphous magnetic materials; boron alloys; casting; cobalt alloys; coercive force; electrical resistivity; ferromagnetic materials; iron alloys; magnetic permeability; magnetisation; nickel alloys; niobium alloys; titanium alloys; zirconium alloys; AC fluxmetric method; Ac magnetic permeability; Cu mould casting method; Fe-based bulk amorphous alloys torroids; FeCoNiTiNbB; FeCoNiZrNbB; coercive field; electrical resistivity; magnetic characterization; saturation induction; temperature dependence; Amorphous magnetic materials; Amorphous materials; Casting; Electric resistance; Frequency; Magnetic materials; Permeability; Saturation magnetization; Titanium alloys; Zirconium;
Conference_Titel :
Magnetics Conference, 2003. INTERMAG 2003. IEEE International
Conference_Location :
Boston, MA, USA
Print_ISBN :
0-7803-7647-1
DOI :
10.1109/INTMAG.2003.1230755
