Ablation behaviors of ultra-high temperature ceramic composites

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	Ablation behaviors of ultra-high temperature ceramic composites
	S. F. Tang; J. Y. Deng; S. J. Wang; W. C. Liu; K. Yang
	2007
发表期刊	Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing
ISSN	0921-5093
卷号	465 期号:1-2 页码:40915
摘要	In order to improve the oxidation resistance of carbon fibers reinforced carbon matrix composites (C/C and the thermal shock resistance of ultra-high temperature ceramics (UHTCs), large numbers of ZrB, based particles were introduced into CIC composites to fabricate the C/CC UHTC composites by powder infiltration (PI) and isothermal chemical vapor infiltration (ICV1). The effects of UHTC additive, heat flux and ablation time on the ablation behaviors of the C/C-UHTC composites were investigated through exposure to an oxyacetylene torch flame with ultra-high temperature. The ZrB, addition to the C/C pronouncedly improved the ablation resistance of the material under a 3920 kWm(2) heat flux and the C/C-ZrB2 showed a better ablation-resistive property compared to the C/C-4ZrB(2)-ISiC, C/C-2ZrB(2)-ISiC, C/C-2ZrB-ISiC-1HfC and C/C-2ZrB(2)-ISiC-ITaC. With decrease of the heat flux from 3200 to 2380 kW/m(2), the presence of a small amount of SiC in the C/C-ZrB, was found to have a positive role of improving the ablation resistance; the C/C-4ZrB(2)-ISiC exhibited a good ablation-resistive endurance under 2380 kW/m(2). The HfC addition was proved to effectively enhance the ablation property of the C/C-lZrB2-2SiC while the TaC addition severely deteriorated the property. (C) 2007 Elsevier B.V. All rights reserved.
部门归属	chinese acad sci, inst met res, shenyang 110016, peoples r china.;deng, jy (reprint author), chinese acad sci, inst met res, shenyang 110016, peoples r china;jydeng@imr.ac.cn
关键词	C/c Composites Ultra-high Temperature Ceramics Ablation Oxidation Carbon-carbon Composites Oxidation Zrb2 Air
URL	查看原文
WOS记录号	WOS:000248637600001
引用统计	被引频次：276[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/33828
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	S. F. Tang,J. Y. Deng,S. J. Wang,et al. Ablation behaviors of ultra-high temperature ceramic composites[J]. Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing,2007,465(1-2):40915.
APA	S. F. Tang,J. Y. Deng,S. J. Wang,W. C. Liu,&K. Yang.(2007).Ablation behaviors of ultra-high temperature ceramic composites.Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing,465(1-2),40915.
MLA	S. F. Tang,et al."Ablation behaviors of ultra-high temperature ceramic composites".Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing 465.1-2(2007):40915.