Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
High-temperature-resistant ceramic matrix composite interface composite coating and preparation method
The invention discloses a high-temperature-resistant ceramic matrix composite interface composite coating and a preparation method. The interface composite coating comprises carbon fibers, a pyrolyticcarbon layer and a SiC layer, the pyrolytic carbon layer coats the carbon fibers, and the SiC layer coats the pyrolytic carbon layer. According to the pyrolytic carbon/silicon carbide composite interface coating provided by the invention, on one hand, mismatching of thermal expansion coefficients of the carbon fibers and a ceramic matrix can be relieved, and on the other hand, a composite interface layer can generate a SiO2 glass phase protection layer in an oxidation or high-temperature ablation environment to protect the carbon fibers from oxidation erosion, so that the high temperature resistance and oxidation resistance of the composite material are improved.
本发明公开了一种耐高温陶瓷基复合材料界面复合涂层及制备方法，所述界面复合涂层包括碳纤维、热解碳层和SiC层，所述热解碳层包覆于碳纤维上，所述SiC层包覆于热解碳层上。本申请所述的热解碳/碳化硅复合界面涂层，一方面可以缓解碳纤维与陶瓷基体的热膨胀系数不匹配，另一方面复合界面层能够在氧化或高温烧蚀环境中生成SiO2玻璃相保护层，保护碳纤维不受氧化侵蚀，从而提高复合材料的耐高温抗氧化性能。
High-temperature-resistant ceramic matrix composite interface composite coating and preparation method
The invention discloses a high-temperature-resistant ceramic matrix composite interface composite coating and a preparation method. The interface composite coating comprises carbon fibers, a pyrolyticcarbon layer and a SiC layer, the pyrolytic carbon layer coats the carbon fibers, and the SiC layer coats the pyrolytic carbon layer. According to the pyrolytic carbon/silicon carbide composite interface coating provided by the invention, on one hand, mismatching of thermal expansion coefficients of the carbon fibers and a ceramic matrix can be relieved, and on the other hand, a composite interface layer can generate a SiO2 glass phase protection layer in an oxidation or high-temperature ablation environment to protect the carbon fibers from oxidation erosion, so that the high temperature resistance and oxidation resistance of the composite material are improved.
本发明公开了一种耐高温陶瓷基复合材料界面复合涂层及制备方法，所述界面复合涂层包括碳纤维、热解碳层和SiC层，所述热解碳层包覆于碳纤维上，所述SiC层包覆于热解碳层上。本申请所述的热解碳/碳化硅复合界面涂层，一方面可以缓解碳纤维与陶瓷基体的热膨胀系数不匹配，另一方面复合界面层能够在氧化或高温烧蚀环境中生成SiO2玻璃相保护层，保护碳纤维不受氧化侵蚀，从而提高复合材料的耐高温抗氧化性能。
High-temperature-resistant ceramic matrix composite interface composite coating and preparation method
一种耐高温陶瓷基复合材料界面复合涂层及制备方法
YANG FANGHONG (Autor:in) / ZHOU CHANGLING (Autor:in) / XU HONGZHAO (Autor:in) / JIANG KAI (Autor:in) / LI HAN (Autor:in) / LIU RUIXIANG (Autor:in) / ZHANG JIALU (Autor:in)
11.08.2020
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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