摘要
针对装备高温部位红外隐身需求,本论文结合大气等离子喷涂和丝网印刷-烧结工艺制备高温红外低发射率涂层。经过900℃和1100℃耐温性试验后,涂层高温红外发射率变化较小,表面未出现裂纹、脱落等缺陷,表明涂层可在900℃下长时使用,短时耐温达到1100℃。并且涂层表现出优异的低发射率特性,具有较好的工程化应用前景。
Owing to the requirement of infrared stealth property of high speed aircraft,high-temperature infrared low-emissivity coating was prepared by combining air plasma spraying and screen printing-sintering process.After thermal cycling at 900℃and 1100℃for a certain time,there is small change in high-temperature infrared emissivity of the coating before and after thermal cycling,while no obvious cracks,spallation or delamination can be discovered from coating surface,indicating that the high-temperature infrared low-emissivity coating can be used at 900℃for a long time and withstand 1100℃for a short time.Furthermore,the coating exhibits excellent low-emissivity,which indicates better prospect of engineering application.
作者
张雄
黄文质
刘海韬
Zhang Xiong;Huang Wenzhi;Liu Haitao(Key laboratory of national defense science and technology of ceramic fiber and composite materials,national defense university of science and technology,changsha 410073,China;Military representative office of the PLA air force in changsha,changsha,hunan 410073,China)
出处
《信息记录材料》
2019年第4期3-7,共5页
Information Recording Materials
关键词
高温红外低发射率涂层
耐温性
方阻
High-temperature infrared low-emissivity coating
Heat resistance
Sheet resistance
