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材料工程  2017, Vol. 45 Issue (2): 54-59    DOI: 10.11868/j.issn.1001-4381.2015.000527
  研究论文 本期目录 | 过刊浏览 | 高级检索 |
烧蚀角度对C/C复合材料烧蚀行为的影响
查柏林, 高双林, 林浩, 罗雷, 张博文, 朱杰堂, 孙振生
火箭军工程大学, 西安 710025
Effects of Ablation Angle on the Ablation Behavior of C/C Composites
ZHA Bai-lin, GAO Shuang-lin, LIN Hao, LUO Lei, ZHANG Bo-wen, ZHU Jie-tang, SUN Zhen-sheng
Rocket Force University of Engineering, Xi'an 710025, China
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摘要 烧蚀角度对C/C复合材料的耐烧蚀性能有显著的影响,采用自主研发的氧-煤油烧蚀实验系统对轴棒法编织的三维四向C/C复合材料进行烧蚀/侵蚀实验,实验的典型角度分别为90°,60°,45°,侵蚀时的粒子浓度为1.37%。测算试样的宏观烧蚀率,并采用扫描电镜(SEM)观察了试样烧蚀后的微观形貌。分析了角度对C/C复合材料烧蚀行为的影响规律,并探讨其烧蚀机理。结果表明:不加粒子进行烧蚀实验时,烧蚀角度90°,60°,45°对应的试样质量烧蚀率分别为0.146,0.123,0.100g/s,随烧蚀角度的减小,质量烧蚀率加速降低;加粒子进行侵蚀实验时,烧蚀角度90°,60°,45°对应的试样质量烧蚀率分别为0.452,0.455,0.432g/s,线烧蚀率分别为1.863,1.323,0.843mm/s,随烧蚀角度的减小,质量烧蚀率基本不变,线烧蚀率逐渐降低。烧蚀角度越小,射流的冲刷作用越强,伴随热化学烧蚀的作用,导致烧蚀/侵蚀实验条件下,径向纤维的烧蚀梯度均增加;烧蚀实验条件下,轴向纤维束外沿的受冲刷区域变大。
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查柏林
高双林
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罗雷
张博文
朱杰堂
孙振生
关键词 烧蚀角度C/C复合材料质量烧蚀率线烧蚀率烧蚀性能    
Abstract:There is a significant impact of ablation angle on the anti-ablation performance of C/C composites. A self-designed oxygen-kerosene ablation system was employed to study the ablation behavior and mechanism of C/C composites. Typical ablation angle of the experiment was 90°, 60°, 45° respectively, and particle concentration of the gas-solid two-phase ablation flow was 1.37%. The microstructure of post-test samples was observed with the scanning electron microscope(SEM), and the ablation rate of samples was also calculated. The result shows that when the ablation angle is 90°, 60°, 45°,the corresponding mass ablation rate for ablation experiment is 0.146,0.123,0.100g/s respectively. With the decrease of ablation angle, the mass ablation rate of samples is decreased gradually; while for the samples affected by particle erosion, the corresponding mass ablation rate is 0.452,0.455,0.432g/s and the line ablation rate is 1.863,1.323,0.843mm/s. The mass ablation rate is approximately unchanged and the line ablation rate is decreased. The smaller the ablation angle is, the more serious the thermalchemical ablation of gas, and thus increase the erosion area of axial fiber bundle under ablation condition and ablation gradient of radial fiber under ablation/erosion condition.
Key wordsablation angle    C/C composite    mass ablation rate    line ablation rate    ablation performance
收稿日期: 2015-04-28      出版日期: 2017-02-23
中图分类号:  V258  
通讯作者: 査柏林(1974-),男,教授,博士,主要研究火箭发动机,联系地址:陕西西安灞桥区洪庆镇同心路2号(710025),zhabailin@163.com     E-mail: zhabailin@163.com
引用本文:   
查柏林, 高双林, 林浩, 罗雷, 张博文, 朱杰堂, 孙振生. 烧蚀角度对C/C复合材料烧蚀行为的影响[J]. 材料工程, 2017, 45(2): 54-59.
ZHA Bai-lin, GAO Shuang-lin, LIN Hao, LUO Lei, ZHANG Bo-wen, ZHU Jie-tang, SUN Zhen-sheng. Effects of Ablation Angle on the Ablation Behavior of C/C Composites. Journal of Materials Engineering, 2017, 45(2): 54-59.
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http://jme.biam.ac.cn/CN/10.11868/j.issn.1001-4381.2015.000527      或      http://jme.biam.ac.cn/CN/Y2017/V45/I2/54
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