Effect of Joule heating on giant magnetoimpedance effect and magnetic properties of Co-rich microwires

JOURNAL OF ALLOYS AND COMPOUNDS

卷:883

Article

Corte-Leon, P.^1,2  Zhukova, V.^1,2  Ipatov, M.^1,2  Blanco, J. M.²  Zhukov, A.^1,2,3 

[1] Univ Basque Country, Fac Chem, Dept Adv Polymers & Mat Phys Chem & Technol, San Sebastian 20018, Spain

[2] Univ Basque Country, EIG, Dept Appl Phys 1, San Sebastian 20018, Spain

[3] Ikerbasque, Basque Fdn Sci, Bilbao 48011, Spain

关键词: Magnetic microwires;    GMI effect;    Magnetic softness;    Joule heating;    Magnetic anisotropy;   

DOI  :  10.1016/j.jallcom.2021.160778

来源: Elsevier

【 摘 要 】

The effect of Joule-heating on hysteresis loops and giant magnetoimpedance effect, GMI; of Co69.2Fe3.6Ni1B12.5Si11Mo1.5C1.2 glass-coated microwire is studied. Joule heating performed at suitable conditions prevents the magnetic hardening observed during conventional furnace annealing of the studied microwires. A remarkable GMI ratio improvement is observed as compared to as-prepared annealed and even stress-annealed microwires. Observed magnetic softening and GMI ratio improvement have been discussed considering magnetic anisotropy induced by Oersted magnetic field during Joule heating and internal stresses relaxation. (C) 2021 The Authors. Published by Elsevier B.V.

【 授权许可】

Free