Complex permittivity measurements and mixing laws of porous alumina

被引：20

作者：

Gershon, D

Calame, JP

Birnboim, A

机构：

[1] Univ Maryland, Inst Plasma Res, College Pk, MD 20742 USA

[2] USN, Res Lab, Vacuum Elect Branch, Washington, DC 20375 USA

来源：

JOURNAL OF APPLIED PHYSICS | 2001年 / 89卷 / 12期

关键词：

D O I：

10.1063/1.1369401

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The dependence of the permittivity of porous alumina on the microstructure was studied. Three different algebraic mixing laws inaccurately predicted the measured effective permittivity of the three-phase material, which was alumina, air, and water. Finite-difference electrostatic simulations of physically realistic microstructures accurately predicted the experimental results. The electrostatic simulations also provided physical insight into the arrangement of water in the material and its significant effect on the effective permittivity. (C) 2001 American Institute of Physics.

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页码：8117 / 8120

页数：4

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