非烧蚀型防热材料烧蚀性能初步试验研究

刘初平, 孟松鹤, 杜百合, 王国林

刘初平, 孟松鹤, 杜百合, 王国林. 非烧蚀型防热材料烧蚀性能初步试验研究[J]. 实验流体力学, 2009, 23(3): 50-53,69. DOI: 10.3969/j.issn.1672-9897.2009.03.011
引用本文: 刘初平, 孟松鹤, 杜百合, 王国林. 非烧蚀型防热材料烧蚀性能初步试验研究[J]. 实验流体力学, 2009, 23(3): 50-53,69. DOI: 10.3969/j.issn.1672-9897.2009.03.011
LIU Chu-ping, MENG Song-he, DU Bai-he, WANG Guo-lin. Preliminary tests of non-ablative thermal protection materials[J]. Journal of Experiments in Fluid Mechanics, 2009, 23(3): 50-53,69. DOI: 10.3969/j.issn.1672-9897.2009.03.011
Citation: LIU Chu-ping, MENG Song-he, DU Bai-he, WANG Guo-lin. Preliminary tests of non-ablative thermal protection materials[J]. Journal of Experiments in Fluid Mechanics, 2009, 23(3): 50-53,69. DOI: 10.3969/j.issn.1672-9897.2009.03.011

非烧蚀型防热材料烧蚀性能初步试验研究

详细信息
  • 中图分类号: 11-5266/V

Preliminary tests of non-ablative thermal protection materials

  • 摘要: 介绍了在CARDC等离子体风洞中开展的非烧蚀型防热材料超高温陶瓷(UHTC)的试验研究结果.对Φ20mm平头圆柱体试验模型,采用亚声速驻点试验技术,在驻点热流478W/cm2,气流焓值27.9MJ/kg,环境压力18kPa条件下,分别对代号C(15、10)型、Y型、S(30、15、10)型3种材料模型进行了试验研究,并对模型试验前后的长度变化、质量变化以及模型表面温度进行了测量,初步分析了模型的表观变化、抗氧化特性和表面辐射特性.结果表明:Y型模型试验前后表观变化不大,表面温度达到1930℃;S型模型表面生成一层薄氧化层,稳定情形下模型表面温度达到1964℃;C型模型表面烧蚀严重,模型表面温度达到2462℃,防热性能最差.
    Abstract: The test results of non-ablative ultra-high temperature ceramic materials (UHTC) in one of the plasma wind tunnels of CARDC are introduced in this paper. Three types of materials, namely model C (15、10) ,Y and S(30、15、10),were tested under a subsonic condition with stagnation point heat flux of 478W/ cm2,enthalpy of 27.9 MJ/kg and stagnation point pressure of 18kPa. The test models were in flat cylinder shape with a diameter of 20mm. The length variation and mass loss and surface temperature of each test model were measured .Test results showed that model Y surface temperature reached 1930℃ with little surface char-acteristics change,model S surface temperature reached 1964℃ with an oxidation layer formed and model C surface temperature reached 2462℃ yet experienced severe ablation. Preliminary analyses of the tested materi-als in terms of surface characteristics change, anti-oxidation characteristics and surface radiation characteristics are also presented.
计量
  • 文章访问数:  144
  • HTML全文浏览量:  41
  • PDF下载量:  10
  • 被引次数: 0
出版历程
  • 刊出日期:  2009-02-28

目录

    /

    返回文章
    返回
    x 关闭 永久关闭