摘要
The thermal expansion law of matrix-modified C/C composites under high temperatures is studied. The results show that the law between the temperature and the thermal expansion coefficient of C/C composite, accords with the general linearity which exists in carbon materials under 900°C. However, the law between the temperature and the thermal expansion coefficient of matrix-modified C/C composite meets exponential relation from 900°C to 1500°C. The laws are reliable and reasonable as indicated by our experiments and mathematical analysis. Therefore, it is significant for improving the matching degree of the thermal expansion coefficient between C/C composites and their oxidation resistant coatings, and for raising the ability to resist oxidation under high temperatures.
源语言 | 英语 |
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页(从-至) | 471-473 |
页数 | 3 |
期刊 | Hangkong Xuebao/Acta Aeronautica et Astronautica Sinica |
卷 | 24 |
期 | 5 |
出版状态 | 已出版 - 9月 2003 |