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Method for improving oxidation resistance of carbon fiber reinforced ceramic-based composite material
The invention provides a method for improving oxidation resistance of a carbon fiber reinforced ceramic matrix composite, and relates to the field of carbon fiber reinforced ceramic matrix composites.The method comprises the steps that S1, raw materials are prepared; s2, carbon fiber surface pretreatment; s3, carbon fiber surface modification; s4, preparing a composite material prefabricated body; s5, curing the precursor; s6, heat treatment and carbonization; according to the preparation method, surface pretreatment and modification technologies such as surface roughening and modifier coating are adopted, the interface bonding strength between the carbon fibers and a ceramic matrix is improved, and the oxidation resistance of the composite material is improved, secondly, in the preparation stage of the composite material, the compactness of the material is guaranteed through the steps of curing condition control, bubble removal and the like, and the service life of the composite material is prolonged. In addition, the vapor deposition anti-oxidation layer technology in the novel treatment method can form a compact and uniform anti-oxidation layer on the surface of the composite material, so that oxygen invasion is effectively prevented, and the anti-oxidation performance of the composite material is improved.
本发明提供一种提高碳纤维增强陶瓷基复合材料抗氧化性能的方法，涉及碳纤维增强陶瓷基复合材料领域，S1：原材料准备；S2：碳纤维表面预处理；S3：碳纤维表面改性；S4：复合材料预制体制备；S5：前驱体固化；S6：热处理与碳化；本发明中，采用表面预处理和改性技术，如表面粗化和涂覆改性剂，增加了碳纤维与陶瓷基质之间的界面结合强度，提高了复合材料的耐氧化性能，其次，在复合材料制备阶段，通过控制固化条件和去除气泡等步骤，保证了材料的致密性，有利于陶瓷基质的均匀渗透和碳化过程的进行，此外，新处理方法中的气相沉积抗氧化层技术，可在复合材料表面形成致密、均匀的抗氧化层，有效阻止氧气侵入，提高了复合材料的抗氧化性能。
Method for improving oxidation resistance of carbon fiber reinforced ceramic-based composite material
The invention provides a method for improving oxidation resistance of a carbon fiber reinforced ceramic matrix composite, and relates to the field of carbon fiber reinforced ceramic matrix composites.The method comprises the steps that S1, raw materials are prepared; s2, carbon fiber surface pretreatment; s3, carbon fiber surface modification; s4, preparing a composite material prefabricated body; s5, curing the precursor; s6, heat treatment and carbonization; according to the preparation method, surface pretreatment and modification technologies such as surface roughening and modifier coating are adopted, the interface bonding strength between the carbon fibers and a ceramic matrix is improved, and the oxidation resistance of the composite material is improved, secondly, in the preparation stage of the composite material, the compactness of the material is guaranteed through the steps of curing condition control, bubble removal and the like, and the service life of the composite material is prolonged. In addition, the vapor deposition anti-oxidation layer technology in the novel treatment method can form a compact and uniform anti-oxidation layer on the surface of the composite material, so that oxygen invasion is effectively prevented, and the anti-oxidation performance of the composite material is improved.
本发明提供一种提高碳纤维增强陶瓷基复合材料抗氧化性能的方法，涉及碳纤维增强陶瓷基复合材料领域，S1：原材料准备；S2：碳纤维表面预处理；S3：碳纤维表面改性；S4：复合材料预制体制备；S5：前驱体固化；S6：热处理与碳化；本发明中，采用表面预处理和改性技术，如表面粗化和涂覆改性剂，增加了碳纤维与陶瓷基质之间的界面结合强度，提高了复合材料的耐氧化性能，其次，在复合材料制备阶段，通过控制固化条件和去除气泡等步骤，保证了材料的致密性，有利于陶瓷基质的均匀渗透和碳化过程的进行，此外，新处理方法中的气相沉积抗氧化层技术，可在复合材料表面形成致密、均匀的抗氧化层，有效阻止氧气侵入，提高了复合材料的抗氧化性能。
Method for improving oxidation resistance of carbon fiber reinforced ceramic-based composite material
一种提高碳纤维增强陶瓷基复合材料抗氧化性能的方法
WANG PENG (author) / CHEN WEIWEI (author) / ZHAO YANG (author) / REN YANXING (author) / LIU SHIJIE (author)
2024-07-05
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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Preparation method of carbon fiber reinforced ceramic-based composite material
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