Giant magnetoimpedance in rapidly quenched materials

JOURNAL OF ALLOYS AND COMPOUNDS

卷:814

Article

Zhukov, A.^1,2,3  Ipatov, M.^1,2  Corte-Leon, P.^1,2  Gonzalez-Legarreta, L.^1,4  Churyukanova, M.⁵  Blanco, J. M.²  Gonzalez, J.¹  Taskaev, S.⁶  Hernando, B.⁷  Zhukova, V.^1,2 

[1] Univ Basque Country, UPV EHU, San Sebastian 20018, Spain

[2] Univ Basque Country, UPV EHU, EIG, San Sebastian 20018, Spain

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

[4] Univ Cantabria, Nanomed IDIVAL, Inorgan Chem, Avda Los Castros 46, E-39005 Santander, Spain

[5] Natl Univ Sci & Technol MISIS, Moscow 119049, Russia

[6] NRU South Ural State Univ, Chelyabinsk 454080, Russia

[7] Oviedo Univ, Oviedo, Spain

关键词: Soft magnetic materials;    Giant magnetoimpedance;    Magnetoelastic anisotropy;    Magnetostriction;    Nanocrystals;   

DOI  :  10.1016/j.jallcom.2019.152225

来源: Elsevier

【 摘 要 】

We present an overview of the factors as well as post processing tools allowing optimization of magnetic softness and GMI effect of rapidly quenched materials: microwires and ribbons. Generally, low coercivity and high GMI effect have been observed in as-prepared Co-rich compositions. Annealing at adequate conditions can be very effective for manipulation of the magnetic properties and GMI effect of amorphous and nanocrystalline rapidly quenched materials. After annealing of Co-rich compositions, we can observe transformation of inclined hysteresis loops to rectangular. However, at certain annealing conditions GMI effect can be improved. Using stress-annealing, GMI effect of both Fe-rich and Co-rich microwires as well as of amorphous ribbons can be improved. On the other hand, in Fe-rich FeCuNb-SiB microwires after appropriate annealing we observed considerable magnetic softening and GMI effect enhancement. The other promising post-processing allowing GMI effect optimization is Joule heating. (C) 2019 Elsevier B.V. All rights reserved.

【 授权许可】

Free