High temperature properties of SiC and diamond CVD-monofilaments

被引：50

作者：

Chollon, G

Naslain, R

Prentice, C

Shatwell, R

May, P

机构：

[1] Univ Bordeaux 1, CEA, SNECMA,Lab Composites Thermostruct LCTS, CNRS UB1 UMR 5801, F-33600 Pessac, France

[2] QinteiQ, Farnborough GU14 0LX, Hants, England

[3] Univ Bristol, Sch Chem, Bristol BS8 1TS, Avon, England

来源：

JOURNAL OF THE EUROPEAN CERAMIC SOCIETY | 2005年 / 25卷 / 11期

关键词：

fibres; SiC; diamond; microstructure; mechanical properties;

D O I：

10.1016/j.jeurceramsoc.2004.06.013

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The chemical, structural and thermomechanical properties of SiC and diamond CVD-monofilaments have been investigated. Electron and Raman microprobe analyses showed graded radial atomic and phase distributions in the SiC filaments. Thermo mechanical investigations (tensile/bending elastic modulus/creep tests) were carried out on single filaments and these properties were con-elated with the physicochemical features. The thermal behaviour of the CVD-SiC filaments is strongly related to the nature and the amounts of intergranular secondary phases (free carbon or silicon). The strong covalent bonds and the microcrystalline state of the CVD-diamond filaments give rise to an outstanding thermal behaviour. (c) 2004 Elsevier Ltd. All rights reserved.

引用

页码：1929 / 1942

页数：14

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