Influence of Co content on the structure and magnetic permeability of nanocrystalline (Fe1-xCox)73.5Cu1Nb3Si13.5B9 alloys

被引：39

作者：

Han, Ye-mei ^{[1
]}

Wang, Zhi ^{[1
]}

Che, Xiang-hui ^{[1
]}

Chen, Xue-gang ^{[1
]}

Li, Wen-run ^{[1
]}

Li, Ya-li ^{[2
]}

机构：

[1] Tianjin Univ, Sch Sci, Tianjin 300072, Peoples R China

[2] Tianjin Univ, Minist Educ, Key Lab Adv Ceram & Machining Technol, Tianjin 300072, Peoples R China

来源：

MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS | 2009年 / 156卷 / 1-3期

基金：

中国国家自然科学基金;

关键词：

Nanocrystalline FeCo-based alloy; Initial permeability; mu(i)-T curve; Exchange coupling; TEMPERATURE INITIAL PERMEABILITY; FINEMET ALLOYS; MICROSTRUCTURE; DEPENDENCE;

D O I：

10.1016/j.mseb.2008.11.006

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Structural and soft magnetic response of nanocrystalline (Fe1-xCox)(73.5)Cu1Nb3Si13.5B9 (x=0, 0.25, 0.5, 0.75) alloys were investigated. Influences of heat treatment and Co content on the crystallization were analyzed through estimation of the crystalline volume fraction V-cr and thickness of the intergranular amorphous layer A from XRD patterns. High-temperature soft magnetic response was analyzed by the temperature evolution of the magnetic permeability from room temperature to 780 C. It was found that the high-temperature soft magnetic behavior is improved with increasing Co content for x <= 0.5, which is ascribed to reinforcing magnetic coupling between the crystals, however, a decrease of mu(i) was observed for the Co richest sample. The observed mu(i) behavior as a function of Co content is interpreted in terms of variations in the degree of exchange coupling. (C) 2008 Elsevier B.V. All rights reserved.

引用

页码：57 / 61

页数：5

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