The microwave properties of composites including lightweight core-shell ellipsoids

被引：1

作者：

Yuan, Liming ^{[1
]}

Xu, Yonggang ^{[1
]}

Dai, Fei ^{[1
]}

Liao, Yi ^{[1
]}

Zhang, Deyuan ^{[2
]}

机构：

[1] Sci & Technol Electromagnet Scattering Lab, Shanghai 200438, Peoples R China

[2] Beihang Univ, Sch Mech Engn & Automat, Beijing 100191, Peoples R China

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2016年 / 419卷

基金：

中国国家自然科学基金;

关键词：

Core-shell ellipsoids; Equivalent ellipsoid; Less diluted suspensions; EFFECTIVE PERMITTIVITY; ABSORBING PROPERTIES; LOW-DENSITY; CONDUCTIVITY; INCLUSIONS; PARTICLES; SYSTEMS; MEDIA;

D O I：

10.1016/j.jmmm.2016.06.062

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In order to study the microwave properties of suspensions including lightweight core-shell ellipsoids, the calculation formula was obtained by substituting an equivalent ellipsoid for the original core-shell ellipsoid. Simulations for Fe-coated diatomite/paraffin suspensions were performed. Results reveal that the calculated results fitted the measured results very well when the inclusion concentration was no more than 15 vol%, but there was an obvious deviation when the inclusion concentration reached 24 vol%. By comparisons, the formula for less diluted suspensions was more suitable for calculating the electromagnetic parameter of suspensions especially when the ratio was smaller between the electromagnetic parameter of the inclusion and that of the host medium. (C) 2016 Elsevier B.V. All rights reserved.

引用

页码：494 / 499

页数：6

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