| Experimental study on thermophysical properties of C/C composites at high temperature |
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| 作者姓名： | 张巍 易法军 韩杰才 孟松鹤 |
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| 作者单位： | Center for Composite Materials Harbin Institute of Technology Harbin 150001，China，Center for Composite Materials Harbin Institute of Technology Harbin 150001，China，Center for Composite Materials Harbin Institute of Technology Harbin 150001，China，Center for Composite Materials Harbin Institute of Technology Harbin 150001，China |
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| 摘 要： | Ablationthermalprotectivecompositesarethekeystructureofspacevehiclesprotectingthemfromaerody namicheatingduringtheirreentryintotheaerosphere.Thecarbonmatrixcompositesarethemostpromisingablationmaterialsusedinthisenvironmentduetotheirpotentiallyfavorablepr…
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| 关 键 词： | C/C复合材料 热膨胀系数 导热性 高温 实验研究 |
| 文章编号： | 1005-9113（2006）03-0286-03 |
| 收稿时间： | 2003-09-26 |
Experimental study on thermophysical properties of C/C composites at high temperature |
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| ZHANG Wei,YI Fa-jun,HAN Jie-cai,MENG Song-he.Experimental study on thermophysical properties of C/C composites at high temperature[J].Journal of Harbin Institute of Technology,2006,13(3):286-288. |
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| Authors: | ZHANG Wei YI Fa-jun HAN Jie-cai MENG Song-he |
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| Abstract: | The coefficient of thermal expansion, thermal diffusivity and specific heat of C/C composites from room temperature to ultra high temperature were experimentally investigated. Thermal conductivity and thermal stress resistance of the composites were therefore computed based on experimental results. The results show that the composite has a very low thermal expansion coefficient. Thermal diffusivity decreases exponentially with temperature increase. The specific heat increases linearly as the temperature rises, and the variation trend of thermal conductivity is similar to that of thermal diffusivity. The thermal stress coefficient of C/C composite has little change with temperature variation, and thermal stress resistance of the composite at high temperature is stable. |
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| Keywords: | C/C composites coefficient of thermal expansion thermal conductivity |
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