高温红外隐身涂层材料研究进展

Research Progress of High Temperature Infrared Stealth Coating Materials

随着现代飞行器速度的不断提高,其热端部件的服役温度越来越高,红外辐射能量也不断增强,从而增加了飞行器在飞行过程中被红外侦测和识别的风险,如何提高飞行器在高温环境下的红外隐身能力成为了军事领域的热点问题之一.目标的红外辐射强度由目标表面的温度和目标表面的发射率决定,所以利用低红外发射率涂层涂覆在飞行器表面,从而降低目标表面的红外发射率,是提高飞行器红外隐身性能的一种便捷、有效的方法.然而,飞行器服役环境通常较为恶劣,为满足其日趋严苛的工程应用需求,需研制出具有更高耐温及耐腐蚀性能的红外隐身涂层.综述了目前几大热门的红外隐身涂层材料和涂层的工艺发展情况,并对涂层性能优化方面进行了阐述,展望了红外隐身涂层材料未来的发展趋势.

With the constant improvement of the modern flight vehicle speed, the hot end components serving temperature is higher and higher,the infrared radiation energy is also increasing,thus increasing the aircraft in flight by the infrared detection and identification of risk in the process,how to improve the aircraft under the environment of high temperature infrared stealth ability has become one of the hot issues in the field of military. The infrared radiation intensity of the target is determined by the temperature of the target surface and the emissivity of the target surface. Therefore,it is a convenient and effective method to improve the infrared stealth performance of the aircraft by coating the surface of the aircraft with low infrared emissivity to reduce the infrared emissivity of the target surface. However,the service environment of an aircraft is usually harsh. In order to meet the increasingly stringent engineering application requirements,it is necessary to develop infrared stealth coating with higher temperature and corrosion resistance. In this paper,it reviews several hot infrared stealth coating materials and coating technology development,pointing out the content of coating performance optimization,and the development trend of infrared stealth coating materials in the future is prospected.