High-temperature tensile properties and oxidation behavior of carbon fiber reinforced silicon carbide bolts in a simulated re-entry environment

被引：85

作者：

Mei, Hui ^{[1
]}

Cheng, Laifei ^{[1
]}

Ke, Qingqing ^{[1
]}

Zhang, Litong ^{[1
]}

机构：

[1] NW Polytech Univ, Sch Mat Sci, Natl Key Lab Thermostruct Composite Mat, Xian 710072, Shaanxi, Peoples R China

来源：

CARBON | 2010年 / 48卷 / 11期

关键词：

Compendex;

D O I：

10.1016/j.carbon.2010.01.056

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The tensile properties and oxidation behavior of 2D C/SiC bolts prepared by chemical vapor infiltration were investigated in a simulated re-entry environment. The results showed that all the tensile streng\ths of 2D C/SiC bolts at test temperatures of 1300, 1600 and 1800 degrees C decreased, respectively, retaining 85%, 92%, and 94% of the virgin properties at room temperature. The tensile strengths and times to failure of 2D C/SiC bolts slightly increased with increase of test temperature from 1300 to 1800 degrees C. Microstructural observations indicated that the C/SiC bolts at lower temperature of 1300 degrees C were more susceptible to the reaction-controlled oxidation with the blunt fiber ends than those at high temperature of 1800 degrees C, which resulting in turn in great mechanical degradation and severe oxidation. (C) 2010 Elsevier Ltd. All rights reserved.

引用

页码：3007 / 3013

页数：7

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