Preparation and properties of electrospun Y₂Si₂O₇ fiber reinforced environmental barrier coatings

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.