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发明公开
CN106192371A 一种耐高温3Al2O3-2SiO2-SiBNC碳纤维复合涂层的制备方法 失效 - 权利终止

一种耐高温3Al2O3-2SiO2-SiBNC碳纤维复合涂层的制备方法
摘要：
本发明公开了一种耐高温3Al2O3-2SiO2-SiBNC碳纤维复合涂层的制备方法，其特征在于，依次包括碳纤维的预处理、3Al2O3-2SiO2溶胶的制备、SiBNC陶瓷粉在3Al2O3-2SiO2溶胶中的均匀分散、碳纤维的浸渍涂层、碳纤维涂层的高温裂解等步骤，即得耐高温的3Al2O3-2SiO2-SiBNC碳纤维复合涂层。本发明工艺简单，可实施性强，得到的3Al2O3-2SiO2-SiBNC碳纤维涂层表面均匀致密，不仅保持了碳纤维原有的力学性能，而且提高了其高温抗氧化性能。
摘要（英）：

The invention discloses a preparation method for high-temperature resisting 3Al2O3-2SiO2-SiBNC carbon fiber compound coating. The method is characterized by comprising the following steps: pre-treating carbon fibers; preparing 3Al2O3-2SiO2 sol; uniformly dispersing SiBNC ceramic powder in the 3Al2O3-2SiO2 sol; steeping and coating the carbon fiber; pyrolyzing the carbon fiber coating at high temperature, thereby acquiring the high-temperature resisting 3Al2O3-2SiO2-SiBNC carbon fiber compound coating. According to the method, the technique is simple, the feasibility is strong and the acquired 3Al2O3-2SiO2-SiBNC carbon fiber compound coating has a uniform and compact surface, maintains the original mechanical property of the carbon fiber and can increase the high temperature and oxidation resistance properties.

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