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ZrC-HfC-TaC改性C/SiC復(fù)合材料的循環(huán)氧化燒蝕行為
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航天特種材料及工藝技術(shù)研究所，北京 100074

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國家自然科學(xué)基金項(xiàng)目（批準(zhǔn)號：22102165）


Cyclic Oxidation and Ablation Behavior of ZrC-HfC-TaC Modified C/SiC Composites
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Affiliation:

Aerospace Institute of Advanced Materials and Processing Technology, Beijing 100074, China

Fund Project:

National Natural Science Foundation of China (22102165)

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    摘要:

    難熔金屬碳化物改性是提升陶瓷基復(fù)合材料抗氧化性能的有效途徑。然而，ZrC-HfC-TaC改性對循環(huán)氧化燒蝕性能的影響卻鮮有報道。利用前驅(qū)體浸漬裂解結(jié)合化學(xué)氣相沉積工藝構(gòu)筑了ZrC-HfC-TaC改性C/SiC復(fù)合材料，剖析了1600 ℃/5 h循環(huán)靜態(tài)氧化后材料的力學(xué)強(qiáng)度、化學(xué)組成以及微觀結(jié)構(gòu)的變化，根據(jù)表征結(jié)果提出了改性后材料的抗氧化機(jī)理，并利用1700 ℃/4000 s循環(huán)氧乙塊焰燒蝕試驗(yàn)驗(yàn)證了ZrC-HfC-TaC改性對提升循環(huán)氧化燒蝕性能的有效性。研究表明，經(jīng)過ZrC-HfC-TaC改性的C/SiC復(fù)合材料具備優(yōu)異的高溫循環(huán)氧化燒蝕性能。

    Abstract:

    Refractory metal carbides have been widely proven to be an effective strategy to enhance the oxidation resistance of ceramic matrix composites. The modification effect of ZrC-HfC-TaC system on cyclic oxidation and ablation behavior has rarely been explored. Herein, ZrC-HfC-TaC modified C/SiC composites were fabricated by polymer infiltration and pyrolysis and chemical vapor deposition processes. The mechanical strength, chemical composition and microstructure after cyclic static oxidation test under 1600 °C/5 h were investigated, and the corresponding oxidation mechanism was proposed according to the characterization results. The cyclic oxyacetylene torch tests under 1700 °C/4000 s were also employed to verify the effectiveness of ZrC-HfC-TaC modification on C/SiC composites. Results suggest that ZrC-HfC-TaC modified C/SiC composites possess outstanding cyclic oxidation and ablation behavior.

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引用本文

陳昊然,劉偉,孫婭楠,馮士杰,楊彤,楊良偉,張寶鵬,宋環(huán)君,孫同臣.ZrC-HfC-TaC改性C/SiC復(fù)合材料的循環(huán)氧化燒蝕行為[J].稀有金屬材料與工程,2022,51(12):4429~4435.[Chen Haoran, Liu Wei, Sun Yanan, Feng Shijie, Yang Tong, Yang Liangwei, Zhang Baopeng, Song Huanjun, Sun Tongchen. Cyclic Oxidation and Ablation Behavior of ZrC-HfC-TaC Modified C/SiC Composites[J]. Rare Metal Materials and Engineering,2022,51(12):4429~4435.]
DOI：10.12442/j. issn.1002-185X.20220009

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  • 收稿日期:2022-01-05
  • 最后修改日期:2022-12-03
  • 錄用日期:2022-03-07
  • 在線發(fā)布日期: 2023-01-11
  • 出版日期: 2022-12-30