Ablation behavior of ZrC-SiC coated C/C-ZrC-SiC composites prepared by precursor infiltration pyrolysis combined with reactive melt infiltration

被引：53

作者：

Liu, Chunxuan ^{[1
]}

Su, Zhean ^{[1
]}

Huang, Qizhong ^{[1
]}

Chen, Jianxun ^{[1
]}

Yang, Xin ^{[1
]}

Cao, Liuxu ^{[1
]}

Yin, Teng ^{[1
]}

Zhong, Ping ^{[1
]}

机构：

[1] Cent S Univ, State Key Lab Powder Met, Changsha 410083, Hunan, Peoples R China

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2014年 / 597卷

关键词：

Ceramics; Composite materials; Liquid-solid reactions; Corrosion; Phase diagrams; PROTECTIVE-COATINGS; OXIDATION BEHAVIOR; CARBON; FABRICATION; MICROSTRUCTURE; RESISTANCE;

D O I：

10.1016/j.jallcom.2014.01.231

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：

C/C-ZrC-SiC composites coated with ZrC-SiC were prepared by precursor infiltration pyrolysis combined with reactive melt infiltration. The microstructure and ablation behavior of the composites before and after ablation were investigated. The composites exhibit good ablation resistance with a surface temperature of over 2300 degrees C. After ablation for 120 s, the mass and linear ablation rates of the composites are 0.0045 g/s and 0.0048 mm/s, respectively. The great ablation resistance of the composites is attributed to the formation of continuous integrated SiO2-ZrO2-SiC ceramic layer sealed the pores of the composites surface during ablation. (C) 2014 Elsevier B. V. All rights reserved.

引用

页码：236 / 242

页数：7

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