Microwave measurements of dielectric constants for high dielectric constant ceramic materials by mixture equations

被引：0

作者：

National Formosa University, Department of Electronic Engineering, Hu-Wei, Yun-Lin 632, Taiwan ^{[1
]}

机构：

[1] National Formosa University, Department of Electronic Engineering, Hu-Wei

来源：

| 1600年 / Institute of Electrical and Electronics Engineers Inc., United States卷 / 20期

关键词：

composites; Dielectric constant; microwave; mixture rules;

D O I：

10.1109/TDEI.2013.6518962

中图分类号：

学科分类号：

摘要：

The microwave dielectric properties of binary composites made by high dielectric constant ceramic fillers and polyethylene matrix are studied in this paper. Three ceramic powders of fillers with dielectric constants of 100 and 170, respectively, are adopted. The experimental dielectric constants of ceramic dispersions in the polyethylene matrix at microwave frequencies of 5 to 10 GHz are compared to those obtained by using different mixing laws. Six powder mixture rules derived from three basic filler particle shapes with random distributions; as well as six exponential and the logarithmic mixture laws are investigated. The mixing rules are also adopted to estimate the dielectric constants of pure ceramics from the measured dielectric constants of composites with various concentrations. The theoretical error of each law for estimation is studied. Two new exponential rules are proposed. It was found the rule derived from filler particles of prolate spheroid with low filler concentration and exponential rules with the order of 1/3 to 1/5 have better estimation accuracy. © 1994-2012 IEEE.

引用

页码：932 / 936

页数：4

共 30 条

[1]

Van Beek L.K.H., Dielectric behavior of heterogeneous systems, Progress in Dielectrics, 7, pp. 69-114, (1967)

[2]

Tinga W.R., Voss W.A.G., Blossey D.F., Generalized approach to multiphase dielectric mixture theory, J. Appl. Phys, 44, pp. 3897-3902, (1973)

[3]

Achour M.E., El Malhi M., Miane J.L., Carmona F., Lahjomri F., Microwave properties of carbon black-epoxy resin composites and their simulation by means of mixture laws, J. Appl. Polymer Science, 73, pp. 969-973, (1999)

[4]

Hanai T., Dielectric theory on the. interfacial polarization for two-phase mixtures, Bull. Inst. Chem. Res. Kyoto Univ, 39, pp. 341-369, (1961)

[5]

Maxwell-Garnett J.C., Colours in metal glasses and in metallic films, Philos. Trans. Roy. Soc. London A, 203, pp. 385-420, (1904)

[6]

Lou J., Hatton T.A., Laibinis P.E., Effective dielectric properties of solvent mixtures at microwave frequencies, Journal of Physical Chemistry A, 101, 29, pp. 5262-5268, (1997)

[7]

Dryden J.S., Meakins R.J., Examples of the maxwell-wagner type of dielectric absorption using wool wax-water mixtures, Proc. Phys. Soc, 70, pp. 427-430, (1957)

[8]

Bottcher C.J.F., Theory of Electric Polarization, (1952)

[9]

Polder D., Van Santeen J.H., The effective permeability of mixtures of solids, Physica, 12, pp. 257-271, (1946)

[10]

Bruggeman D.A.G., The calculation of various physical constants of heterogeneous substances, 1, the dielectric constants and conductivities of mixtures composed of isotropic substances, Ann. Phys. (Leipzig), 24, pp. 636-679, (1935)

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