Research on High Temperature Protection Property and Thermal Impact Resistance of A PS–PVD Si/Mu/YbMS Environmental Barrier Coating
WANG Bo 1,2 , LIU Yang 3 , PENG Xin 4 , YUAN Fuhe 2 , CHENG Yuxian 2
1. Beihang University, Beijing 100191, China;
2. AECC Shenyang Liming Aero-Engine Co., Ltd., Shenyang 110043, China;
3. Luxun Academy of Fine Arts, Shenyang 110004, China;
4. Shenyang Area 2nd Military Representative Room of Air Force Equipment Department, Shenyang 110042, China
摘要通过 SiC f /SiC 复合材料表面等离子喷涂（APS）硅黏结层和莫来石中间层，等离子 – 物理气相沉积（PS–PVD）制备硅酸镱面层，喷涂的整个环境障涂层体系组织致密，PS–PVD 工艺制备的硅酸镱为层状结构，孔隙率<1%。研究了 SiC f /SiC 复合材料环境障涂层的抗静态氧化、循环氧化、水汽腐蚀和热冲击性能，发现复合材料表面的环境障涂层体系在 1200℃、1300℃下静态氧化和循环氧化 100h 后皆保持表面完好，无剥落现象，具有较好的抗氧化性能。涂层在 1300℃燃气热冲击试验寿命超过 100 次循环，且在 1200℃、15% H 2 O 水汽环境中静态氧化 100h 以内的耐腐蚀性能良好。
Abstract：An environmental barrier coating system was applied on SiC f /SiC composite specimens with the silicon bond coat and mullite intermediate coat sprayed using APS processes and the ytterbium silicate topcoat sprayed using a PS–PVD process. The sprayed environmental barrier coating system is dense in microstructure and the PS–PVD ytterbium silicate topcoat possesses lamellar structure with a porosity less than 1%. The static oxidation, cyclic oxidation, water vapour corrosion and thermal impact resistances of the environmental barrier coating system were investigated. It was demonstrated that the environmental barrier coating sprayed on the SiC f /SiC composite specimens had a desirable oxidation resistance as it kept intact with no obvious evidence of spallation observed after 100h static oxidation, 100h cyclic oxidation test at 1200℃ and 1300℃. Moreover, the coating had a thermal impact resistance life more than 100 cycles as heated to a high temperature of 1300℃ by a hot gas stream and it had a preferable corrosion resistance at 1200℃ in an environment containing 15% H 2 O water vapour.
王博，刘洋，彭新，袁福河，程玉贤. 等离子–物理气相沉积硅/莫来石/硅酸镱环境障涂层的高温防护和耐热冲击性能研究[J]. 航空制造技术, 2022, 65(3): 64-70.
WANG Bo，LIU Yang，PENG Xin，YUAN Fuhe，CHENG Yuxian. Research on High Temperature Protection Property and Thermal Impact Resistance of A PS–PVD Si/Mu/YbMS Environmental Barrier Coating. Aeronautical Manufacturing Technology, 2022, 65(3): 64-70.
2022, 
