Electromagnetic and microwave absorption properties of the Nickel/Ti3SiC2 hybrid powders in X-band

被引：45

作者：

Liu, Yi ^{[1
]}

Luo, Fa ^{[1
]}

Su, Jinbu ^{[1
]}

Zhou, Wancheng ^{[1
]}

Zhu, Dongmei ^{[1
]}

机构：

[1] Northwestern Polytech Univ, State Key Lab Solidificat Proc, Xian 710072, Peoples R China

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2014年 / 365卷

基金：

中国国家自然科学基金;

关键词：

Nickel/Ti3SiC2 hybrid powder; EM parameter; Microwave absorption property; TI3SIC2; POWDER; CARBONYL IRON; COMPOSITES; TEMPERATURE; PARTICLES;

D O I：

10.1016/j.jmmm.2014.04.056

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The electromagnetic (EM) characteristics and microwave absorption properties of the Nickel/Ti3SiC2 hybrid powders are studied in 8.2-124 GHz.With the enhancement of Ti3SiC2 content, the dielectric loss of the hybrid powders increases while the magnetic loss decreases compared with the pure Ni powders. A favorable microwave absorption property can be obtained by changing the Ti3SiC2 content to tailor the EM parameters. The composite with 30 wt% Ni and 30 wt% Ti3SiC2 powders presents the optimum microwave absorption property. For the composite of 2.2 mm thickness, a reflection loss (R-L) below -10 dB is obtained in the frequency range of 82-12 GHz with a minimum R-L of -41.2 dB at the matching frequency 9.7 GHz. This study contributes to exploring the absorber with broad absorption bandwidth, low density and thin thickness. (C) 2014 Elsevier B.V. All rights reserved

引用

页码：126 / 131

页数：6

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