Ablation and mechanical behavior of a sandwich-structured composite with an inner layer of Cf/SiC between two outer layers of Cf/SiC-ZrB2-ZrC

被引：54

作者：

Hu, Chenglong ^{[1
]}

Pang, Shengyang ^{[1
]}

Tang, Sufang ^{[1
]}

Wang, Shijun ^{[1
]}

Huang, Hongtao ^{[1
]}

Cheng, Hui-Ming ^{[1
]}

机构：

[1] Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China

来源：

CORROSION SCIENCE | 2014年 / 80卷

关键词：

Ceramic matrix composite; SEM; High temperature corrosion; THERMAL PROTECTION SYSTEMS; C/ZRC-SIC COMPOSITE; C/SIC COMPOSITES; FABRICATION; C/C; ZIRCONIUM; MICROSTRUCTURE; INFILTRATION; STABILITY;

D O I：

10.1016/j.corsci.2013.11.019

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A sandwich-structured composite, which contains an inner layer of C-f/SiC between two outer layers of C-f/SiC-ZrB2-ZrC, was fabricated by a technique that involved rapid chemical vapor infiltration and precursor infiltration and pyrolysis. In both cyclic and single ablation conditions for one thousand seconds by an oxyacetylene flame, the composites exhibited good ablation-resistant properties and low strength reductions after ablation because of the introduction of a great amount of UHTCs into the outer layers and the small thickness of the ablation-affected area, respectively. The ablation rate and strength reduction in cyclic ablation were lower than those in single ablation. (C) 2013 Elsevier Ltd. All rights reserved.

引用

页码：154 / 163

页数：10

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