GHz microwave permeability of CoFeZr amorphous materials synthesized by two-step mechanical alloying

被引：41

作者：

Deng, LW ^{[1
]}

Jiang, JJ ^{[1
]}

Fan, SC ^{[1
]}

Feng, ZK ^{[1
]}

Xie, WY ^{[1
]}

Zhang, XC ^{[1
]}

He, HH ^{[1
]}

机构：

[1] Huazhong Univ Sci & Technol, Dept Elect Sci & Technol, Wuhan 430074, Peoples R China

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2003年 / 264卷 / 01期

关键词：

CoFeZr amorphous alloy; complex permeability; mechanical alloying; process control agent; microwave absorber;

D O I：

10.1016/S0304-8853(03)00135-5

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

CoFeZr amorphous magnetic materials prepared by mechanical alloying (MA) were investigated. Microstructures of the CoFeZr alloys were analyzed by XRD and their morphology observed by SEM. The results show that the characteristics of the amorphous materials mainly depend on MA conditions and alloys composition. By a two-step MA process, micron or sub-micron flake-like CoFeZr amorphous materials with narrow size distribution range and regular morphology were obtained. Microwave permeability of these alloys was further measured by an Agilent 8722ES Vector Network Analyzer. The maximum values of mu' and mu" at 2 GHz were 4.26 and 4.22, respectively. Thus these novel materials could be used for microwave absorbers operating in the several GHz range. (C) 2003 Elsevier Science B.V. All rights reserved.

引用

页码：50 / 54

页数：5

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