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首页> 外文期刊>Corrosion science >Ablation in different heat fluxes of C/C composites modified by ZrB_2-ZrC and ZrB_2-ZrC-SiC particles
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Ablation in different heat fluxes of C/C composites modified by ZrB_2-ZrC and ZrB_2-ZrC-SiC particles

机译：ZrB_2-ZrC和ZrB_2-ZrC-SiC颗粒改性的C / C复合材料在不同热通量中的烧蚀

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摘要

Carbon/carbon composites modified by ZrB_2-ZrC-SiC particles (C/C-Z-SiC), C/C-Z and C/C were ablated by oxyacetylene torch using two different heat fluxes to investigate the effect of doped ceramic particles. Results indicated that C/C-Z-SiC had the best ablation property in heat flux of 2.38 MW/m~2 whereas their ablation rates increased fastest when heat flux rising from 2.38 to 4.18 MW/m~2. C/C composites had the poorest ablation property in the lower heat flux and their ablation rates increased slowest. Thermal mismatch of Z, SiC and C and evaporation of SiO_2 induced the various ablation behavior.
机译：用两种不同的热通量通过氧乙炔炬烧制了ZrB_2-ZrC-SiC颗粒（C / C-Z-SiC），C / C-Z和C / C改性的碳/碳复合材料，以研究掺杂陶瓷颗粒的作用。结果表明，C / C-Z-SiC在2.38 MW / m〜2的热通量中具有最佳的烧蚀性能，而当热通量从2.38 MW / m〜2升高时，烧蚀速率增加最快。 C / C复合材料在较低的热通量下具有最差的烧蚀性能，其烧蚀速率增加最慢。 Z，SiC和C的热失配以及SiO_2的蒸发引起了各种烧蚀行为。

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  • 来源
    《Corrosion science》 |2013年第9期|159-167|共9页
  • 作者

    Lei Liu; Hejun Li; Wei Feng; Xiaohong Shi; Kezhi Li; Lingjun Guo;

  • 作者单位

    State Key Laboratory of Solidification Processing. Northwestern Polytechnical University, Xi'an 710072, Shaanxi, PR China;

    State Key Laboratory of Solidification Processing. Northwestern Polytechnical University, Xi'an 710072, Shaanxi, PR China;

    State Key Laboratory of Solidification Processing. Northwestern Polytechnical University, Xi'an 710072, Shaanxi, PR China;

    State Key Laboratory of Solidification Processing. Northwestern Polytechnical University, Xi'an 710072, Shaanxi, PR China;

    State Key Laboratory of Solidification Processing. Northwestern Polytechnical University, Xi'an 710072, Shaanxi, PR China;

    State Key Laboratory of Solidification Processing. Northwestern Polytechnical University, Xi'an 710072, Shaanxi, PR China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    A. Ceramic matrix composites; B. SEM; C. High temperature corrosion; C. Oxidation;

    机译：A.陶瓷基复合材料;扫描电镜C.高温腐蚀;C.氧化;

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