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Silicon carbide fiber reinforced silicon carbide ceramic-based composite material with BN/SiC/Y2Si2O7 multi-layer interface and preparation method of silicon carbide fiber reinforced silicon carbide ceramic-based composite material
The invention relates to a silicon carbide fiber reinforced silicon carbide ceramic-based composite material with a BN/SiC/Y2Si2O7 multilayer interface and a preparation method of the silicon carbide fiber reinforced silicon carbide ceramic-based composite material. The preparation method comprises the following steps: (1) depositing a BN interface on the surface of a silicon carbide fiber to prepare a SiCf/BN preform; (2) depositing a SiC interface on the surface of the obtained SiCf/BN prefabricated body to prepare a SiCf/BN/SiC prefabricated body; (3) preparing a Y2Si2O7 interface layer on the surface of the obtained SiCf/BN/SiC prefabricated body by adopting sol-gel, dip-coating and high-temperature pyrolysis, so as to prepare a SiCf/BN/SiC/Y2Si2O7 prefabricated body; and (4) carrying out SiC matrix densification on the obtained SiCf/BN/SiC/Y2Si2O7 prefabricated body, so as to obtain the SiCf/SiC ceramic matrix composite material with the BN/SiC/Y2Si2O7 multi-layer interface.
本发明涉及一种具有BN/SiC/Y2Si2O7多层界面的碳化硅纤维增强碳化硅陶瓷基复合材料及其制备方法。所述制备方法包括：(1)在碳化硅纤维表面沉积BN界面，制得SiCf/BN预制体；(2)在所得SiCf/BN预制体表面沉积SiC界面，制得SiCf/BN/SiC预制体；(3)采用溶胶凝胶、浸渍提拉和高温热解在所得SiCf/BN/SiC预制体表面制备Y2Si2O7界面层，制得SiCf/BN/SiC/Y2Si2O7预制体；(4)对所得SiCf/BN/SiC/Y2Si2O7预制体进行SiC基体致密化，得到具有BN/SiC/Y2Si2O7多层界面的SiCf/SiC陶瓷基复合材料。
Silicon carbide fiber reinforced silicon carbide ceramic-based composite material with BN/SiC/Y2Si2O7 multi-layer interface and preparation method of silicon carbide fiber reinforced silicon carbide ceramic-based composite material
The invention relates to a silicon carbide fiber reinforced silicon carbide ceramic-based composite material with a BN/SiC/Y2Si2O7 multilayer interface and a preparation method of the silicon carbide fiber reinforced silicon carbide ceramic-based composite material. The preparation method comprises the following steps: (1) depositing a BN interface on the surface of a silicon carbide fiber to prepare a SiCf/BN preform; (2) depositing a SiC interface on the surface of the obtained SiCf/BN prefabricated body to prepare a SiCf/BN/SiC prefabricated body; (3) preparing a Y2Si2O7 interface layer on the surface of the obtained SiCf/BN/SiC prefabricated body by adopting sol-gel, dip-coating and high-temperature pyrolysis, so as to prepare a SiCf/BN/SiC/Y2Si2O7 prefabricated body; and (4) carrying out SiC matrix densification on the obtained SiCf/BN/SiC/Y2Si2O7 prefabricated body, so as to obtain the SiCf/SiC ceramic matrix composite material with the BN/SiC/Y2Si2O7 multi-layer interface.
本发明涉及一种具有BN/SiC/Y2Si2O7多层界面的碳化硅纤维增强碳化硅陶瓷基复合材料及其制备方法。所述制备方法包括：(1)在碳化硅纤维表面沉积BN界面，制得SiCf/BN预制体；(2)在所得SiCf/BN预制体表面沉积SiC界面，制得SiCf/BN/SiC预制体；(3)采用溶胶凝胶、浸渍提拉和高温热解在所得SiCf/BN/SiC预制体表面制备Y2Si2O7界面层，制得SiCf/BN/SiC/Y2Si2O7预制体；(4)对所得SiCf/BN/SiC/Y2Si2O7预制体进行SiC基体致密化，得到具有BN/SiC/Y2Si2O7多层界面的SiCf/SiC陶瓷基复合材料。
Silicon carbide fiber reinforced silicon carbide ceramic-based composite material with BN/SiC/Y2Si2O7 multi-layer interface and preparation method of silicon carbide fiber reinforced silicon carbide ceramic-based composite material
一种具有BN/SiC/Y2Si2O7多层界面的碳化硅纤维增强碳化硅陶瓷基复合材料及其制备方法
YANG JINSHAN (author) / MA QIN (author) / DONG SHAOMING (author) / HU JIANBAO (author) / LIU DAHAI (author)
2024-09-10
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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