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A Study of Low-Density Heat-Resistant Coating for New-Generation Launch Vehicle Fairings
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作者 WANG Jun TONG Gangsheng +5 位作者 LI Mao DU Tongliang HU Li LI Ying ZHANG Chongyin ZHU Xinyuan 《Aerospace China》 2022年第3期44-50,共7页
In this paper,the properties of different low-density heat-resistant coating prescriptions were compared,and a heat-resistant coating with a density of 0.65 g/cm^(3),a tensile strength of 2.04 MPa,and a thermal conduc... In this paper,the properties of different low-density heat-resistant coating prescriptions were compared,and a heat-resistant coating with a density of 0.65 g/cm^(3),a tensile strength of 2.04 MPa,and a thermal conductivity of 0.126 W/(m·K)was obtained.The thermal performance of the coating was characterized by an oxygen-acetylene ablation test,a hot radiation test using a quartz lamp and in an arc-heated wind tunnel test.The results indicated that the low-density heat-resistant coating prescription has advantages of high temperature resistance,erosion resistance,ablative resistance and excellent heat resistance,which can satisfy the heat resistance requirements of new-generation launch vehicle fairings.The successful application of this heat-resistant coating technology resolved the problems of low efficiency and poor adhesive performance of the traditional hand-pasted cork process,and realized the rapid spray application of the thermal protection layer,effectively improved the manufacturing efficiency and production quality of the heat-resistant layer of new-generation launch vehicle fairings. 展开更多
关键词 heat-resistant coating thermal protection layer ablative resistance
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