OPTIMIZATION OF SOFT MAGNETIC PROPERTIES IN NANOCRYSTALLINE GLASS-COATED MICROWIRES

被引：0
|
作者：
Zhukova, V. [1 ,2 ]
Talaat, A. [1 ,2 ]
Ipatov, M. [1 ,2 ]
del Val, J. J. [1 ]
Blanco, J. M. [2 ]
Gonzalez-Legarreta, L. [3 ]
Hernando, B. [3 ]
Zhukov, A. [1 ,2 ,4 ]
机构：
[1] Univ Basque Country, Dept Fis Mat, San Sebastian 20009, Spain
[2] Univ Basque Country, EUPDS, Dept Fis Aplicada, San Sebastian 20018, Spain
[3] Univ Oviedo, Dept Fis, E-33007 Oviedo, Spain
[4] Basque Fdn Sci, Ikerbasque, Bilbao 48011, Spain
来源：
PROCEEDINGS OF THE TMS MIDDLE EAST - MEDITERRANEAN MATERIALS CONGRESS ON ENERGY AND INFRASTRUCTURE SYSTEMS (MEMA 2015) | 2015年
关键词：
Magnetic microwires; giant magnetoimpedance; magnetoelastic anisotropy; nanocrystallization; GIANT MAGNETOIMPEDANCE; AMORPHOUS WIRES; IMPEDANCE; FIELD; MAGNETOMETER; ALLOYS;
D O I：
10.1002/9781119090427.ch16
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
We have studied correlation of magnetic properties, structure and Giant Magnetoimpedance ( GMI) effect, of Finemet-type FeCuNbSiB microwires. We have observed that GMI effect and magnetic softness of glass-coated microwires produced by the Taylor-Ulitovski technique can be tailored either controlling magnetoelastic anisotropy of as-prepared FeCuNbSiB microwires or controlling their structure by heat treatment. We have observed considerable magnetic softening of studied microwires after annealing. This magnetic softening correlates with the devitrification of amorphous samples. Amorphous Fe-rich microwires exhibit low GMI effect ( GMI ratio below 1%). Considerable enhancement of the GMI effect ( GMI ratio up to 90%) has been observed in heat treated microwires with nanocrystalline structure. We believe that FINEMET-type glass-coated microwires with higher saturation magnetization are good candidates for GMI sensor and metacomposites applications.
引用
收藏
页码：157 / 164
页数：8
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