Micro-Raman stress imaging of ceramic (C, SiC)-fiber-reinforced ceramic-matrix and metal-matrix composites

被引：15
|
作者：
Gouadec, G
Colomban, P
机构：
[1] Univ Paris 06, Lab Dynam Interact React LADIR, UMR 7075, CNRS, F-94320 Thiais, France
[2] Off Natl Etud & Rech Aerosp, Dept Mat & Syst Composites, F-92322 Chatillon, France
来源：
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2000年 / 288卷 / 02期
关键词：
Raman scattering; fibers; composites; anharmonicity; stress; strain;
D O I：
10.1016/S0921-5093(00)00873-X
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
The high strength and toughness of brittle fiber-reinforced composites result from the conservation of the pristine state of the fiber and from special fiber-matrix interphases. Raman scattering is a unique tool providing information on the structure and short-range order of amorphous, nanocrystalline or crystalline phases, as well as on the stress level, via the stress-induced wavenumber shift arising from chemical bond anharmonicity. Quantitative results can be obtained by calibrating the fiber wavenumber shift under tensile stress. Examples chosen among (C, SiC) fiber-reinforced ceramic (celsian, mullite) and intermetallic (Ti6242) matrix composites are discussed. (C) 2000 Elsevier Science S.A. All rights reserved.
引用
收藏
页码：132 / 137
页数：6
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