Studies of thermal and magnetic properties of Fe-based amorphous and nanocrystalline glass coated microwires

被引：6

作者：

Churyukanova, M. ^{[1
]}

Zhukova, V. ^{[2
]}

Talaat, A. ^{[2
]}

del Val, J. J. ^{[2
]}

Kaloshkin, S. ^{[1
]}

Kostitcyna, E. ^{[1
]}

Shuvaeva, E. ^{[1
]}

Sudarchikova, V. ^{[1
]}

Zhukov, A. ^{[2
,3
]}

机构：

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

[2] Univ Basque Country, Dept Fis Mat, San Sebastian, Spain

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

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2014年 / 615卷

关键词：

Glass-coated amorphous microwire; Curie temperature; Heat capacity; Nanocrystallization; Giant Magnetoimpedance effect; Magnetoelastic energy; GIANT MAGNETOIMPEDANCE; MAGNETOSTRICTION;

D O I：

10.1016/j.jallcom.2013.12.030

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

We studied the influence of magnetoelastic energy on properties of nanostructured glass-coated microwires with soft magnetic behaviour (Finemet-type microwires of Fe70.8Cu1Nb3.1Si14.5B10.6 and Fe73.8Cu1Nb3.1Si13B9.1 compositions). The magnetoelastic energy, stored during the Finemet-type microwires fabrication, affected the hysteresis loops, coercivity and heat capacity of Finemet-type microwires. Hysteresis loops of all as-prepared microwires showed rectangular shape, typical for Fe-rich microwires. As expected, coercivity, H-c, of as-prepared microwires increases with decreasing of the ratio rho defined as the ratio between the metallic nucleus-diameter, d to total microwire diameter, D. On the other hand, the change of heat capacity in T-c, Delta Cp, exhibits increasing with the ratio rho. This relationship holds for microwires in the as-prepared state as well as after annealing. (C) 2013 Elsevier B.V. All rights reserved.

引用

页码：S256 / S260

页数：5

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