Title :
Magnetic properties and GMI response in thin FINEMET cold drawn microwires
Author :
Chiriac, H. ; Corodeanu, S. ; Donac, A. ; Dobrea, V. ; Ababei, G. ; Lostun, M. ; Ovari, T. ; Lupu, N.
Author_Institution :
Nat. Inst. of R&D for Tech. Phys., Iasi, Romania
Abstract :
Here we report on the magnetic and magnetoelastic properties of a family of magnetic nanocrystalline wires with diameters in the range 10-30 μm, obtained by successive cold drawings of FINEMET amorphous wires precursors (105 μm in diameter) prepared by in-rotating-water spinning. Their unique magnetic properties are discussed considering the stresses induced during preparation and cold drawing, the stresses relief following annealing, the annealing-induced structural transformations (e.g., nanocrystallization) and the corresponding changes in the magnetic anisotropy.
Keywords :
annealing; boron alloys; copper alloys; crystallisation; drawing (mechanical); giant magnetoresistance; iron alloys; magnetic anisotropy; nanofabrication; nanomagnetics; nanowires; niobium alloys; silicon alloys; solid-state phase transformations; FINEMET amorphous wire precursors; Fe73.5Nb3CuSi13.5B9; GMI response; annealing-induced structural transformations; in-rotating-water spinning; magnetic anisotropy; magnetic nanocrystalline wires; magnetoelastic properties; nanocrystallization; size 10 mum to 30 mum; size 105 mum; stress relief; thin FINEMET cold drawn microwires; Amorphous magnetic materials; Annealing; Magnetic anisotropy; Magnetic properties; Permeability; Sensors; Wires;
Conference_Titel :
Magnetics Conference (INTERMAG), 2015 IEEE
Conference_Location :
Beijing
Print_ISBN :
978-1-4799-7321-7
DOI :
10.1109/INTMAG.2015.7157082
