| Preparation and properties of electrospun Y2Si2O7 fiber reinforced environmental barrier coatings |
| Wanjun Xie1, Chaohui Wang1, Meiling Dong1, Xinyao Tang1, Yuan You1, Weidong Cheng1, Songyu Cao1, Liang Wang2, Xiaodong Zhang3, You Wang3 |
1College of Materials Science and Engineering, Heilongjiang Provincial Key Laboratory of Polymeric Composite Materials, Qiqihar University, Heilongjiang Province, Qiqihar, 161006, People’s Republic of China
2Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, 200050, People’s Republic of China
3College of Materials Science and Engineering, Harbin Institute of Technology, Harbin, Heilongjiang, 150001, People’s Republic of China |
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Received: February 7, 2024; Revised: June 22, 2024 Accepted: July 5, 2024. Published online: July 17, 2024. |
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| ABSTRACT |
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Y2Si2O7 ceramic fiber was prepared by the electrospinning technology and modified by adding TiSi2. The traditional Y2Si2O7 environmental barrier coating was strengthened by fiber toughening. the slurry coating method was used to prepare the coating. The synthesis temperature of Y2Si2O7 was found to be 1473 K. The thermal shock and oxidation resistance of the coating were studied, which indicated that the Y2Si2O7 fiber prepared by the electrospinning technology could reduce the thermal stress in the thermal shock test, and the modified fiber obtained the best result. In the study of antioxidant properties, the modified fiber-reinforced Y2Si2O7 coating lost only 2% after 30 h. Based on the advantages of these improvements, it can be used for aerospace-related material preparation. |
| Key words:
Y2Si2O7 ceramic fi ber · Electrospinning · Environmental barrier coating · Reinforced |
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