炭/炭复合材料高温抗氧化涂层的研究进展

Progress on the oxidation protective coating of carbon-carbon composites

阐述了近年来国内外炭/炭复合材料高温抗氧化涂层在玻璃、贵金属、陶瓷以及复合涂层等涂层体系方面的新近展,总结了炭/炭复合材料高温抗氧化涂层在已有制备工艺的完善以及新工艺的开发等方面的最新研究成果,结合涂层炭/炭复合材料在航空、航天以及军事领域的应用背景对高温抗氧化涂层的下一步发展趋势进行了展望。指出:目前的研究结果尚达不到严酷环境下的应用要求,炭/炭复合材料高温抗氧化涂层下一阶段将向着长寿命、耐高温、抗冲刷和低成本的方向发展;涂层新工艺的开发和涂层与基体结合研究将是下一步的研究重点;多相复合涂层和梯度陶瓷涂层有望取得在高温冲刷环境下长时间应用的突破性进展。

The recent development of oxidation protective coating materials for C/C composites, such as glass, noble metal, ceramics and multi-layer coating systems are reviewed. New advances in the traditional preparation technologies of carbon/carbon composite coatings and the exploitation of new techniques for the preparation of oxidation protective coatings in recent years are also introduced. Combined with the future applications of coated carbon-carbon composites in aviation, spaceflight and military fields, the next development direction in the investigation of the oxidation resistant coating is also proposed. It is shown that there is an obvious gap between the present research results and application in severe environments. The low preparation cost and long service life of the oxidation protective coating at high temperature and in a high rate gas eroding environment will be the main emphasis for future development. Improvement of the bonding between coating and matrix and the exploitation of new preparation techniques are the most important topics in for future research. Multi-layer and gradient ceramic coated carbon/carbon composites could work for a long time at high temperature and in a high gas rate eroding environment.