Dielectric properties of SiC fiber-reinforced SiC matrix composites in the temperature range from 25 to 700 °C at frequencies between 8.2 and 18 GHz

被引：59

作者：

Liu, Haitao ^{[1
,2
]}

Tian, Hao ^{[1
]}

Cheng, Haifeng ^{[1
]}

机构：

[1] Natl Univ Def Technol, Coll Aerosp & Mat Engn, Key Lab Adv Ceram Fiber & Composites, Changsha 410073, Hunan, Peoples R China

[2] Natl Univ Def Technol, Coll Aerosp & Mat Engn, Sci & Technol Scramjet Lab, Changsha 410073, Hunan, Peoples R China

来源：

JOURNAL OF NUCLEAR MATERIALS | 2013年 / 432卷 / 1-3期

基金：

中国国家自然科学基金;

关键词：

SILICON-CARBIDE COMPOSITES; MECHANICAL-PROPERTIES;

D O I：

10.1016/j.jnucmat.2012.08.026

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The complex permittivity of a SiC fiber-reinforced SiC matrix (SiCf/SiC) composite was measured in a temperature range of 25-700 degrees C at frequencies from 8.2 to 18 GHz. The SiCf/SiC composite exhibited a positive temperature coefficient, that is, its complex permittivity increased with temperature. The observed positive temperature coefficient can be interpreted by Debye theory, by which the theoretical predictions were in well agreement with the experimental results. (c) 2012 Elsevier B.V. All rights reserved.

引用

页码：57 / 60

页数：4

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