退火特性对富钴玻璃涂层微线巨磁阻的影响

IF 5.8 2区材料科学 Q2 CHEMISTRY, PHYSICAL

Journal of Alloys and Compounds Pub Date : 2024-11-19 DOI:10.1016/j.jallcom.2024.177626

A. García-Gómez, V. Zhukova, J.M. Blanco, A. Zhukov

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引用次数: 0

摘要

本文研究了常规退火和应力退火对具有低正磁致伸缩系数和低居里温度的 Co65.3Si12.0B10.2Cr8.5Fe3.9Mo0.1 微线的磁性能和巨磁阻（GMI）效应的影响。在高达 350∘C 和 320 MPa 的退火条件下，我们观察到 GMI 效应和磁滞回线都具有显著的调节能力。我们报告了 GMI 比率的双峰磁场相关性，这与应力退火微丝的两种不同磁畴结构所产生的两种不同贡献共存有关。观察到的实验结果从退火程序产生的内应力松弛、诱导的磁各向异性和局部原子重排等方面进行了讨论。富钴微线具有较低的正磁致伸缩系数和较低的居里温度，对其进行的研究可能适用于开发嵌入微线的智能复合材料，用于无线温度监测。

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Effect of annealing properties on Giant Magnetoimpedance of Co-rich glass-coated microwires

In this article we study the effect of conventional and stress annealing on the magnetic properties and giant magnetoimpedance (GMI) effect of Co_65.3Si_12.0B_10.2Cr_8.5Fe_3.9Mo_0.1 microwires with low and positive magnetostriction coefficient and low Curie temperature. A remarkable tuning capacity of both GMI effect and hysteresis loops is observed for a broad range of annealing conditions up to 350^∘C and 320 MPa. We report appearance of double-peaks magnetic field dependencies of the GMI-ratio related with the coexistence of two different contributions originated by two different magnetic domain structure for the stress-annealed microwires. The observed experimental results are discussed in terms of the internal stresses relaxation derived from the annealing procedures, the induced magnetic anisotropy and local atomic reordering. The studies of Co-rich microwires with low and positive magnetostriction coefficient and low Curie temperature are potentially suitable for development of smart composites with embedded microwires for wireless temperature monitoring.

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来源期刊

Journal of Alloys and Compounds 工程技术-材料科学：综合

CiteScore

11.10

自引率

14.50%

发文量

5146

审稿时长

67 days

期刊介绍： The Journal of Alloys and Compounds is intended to serve as an international medium for the publication of work on solid materials comprising compounds as well as alloys. Its great strength lies in the diversity of discipline which it encompasses, drawing together results from materials science, solid-state chemistry and physics.