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Method for repairing local defects of carbon fiber reinforced ceramic matrix composite
The invention discloses a method for repairing local defects of a carbon fiber reinforced ceramic-based composite material, which is characterized by comprising the following steps: preparing first fiber slurry which comprises carbon fibers, water glass and ceramic powder; preparing second fiber slurry, wherein the second fiber slurry comprises long-fiber boron nitride fibers, ceramic powder and a solvent; preparing third fiber slurry, wherein the third fiber slurry comprises short-fiber boron nitride fibers, ceramic powder, a polymeric monomer, a cross-linking agent, an initiator and a solvent; dipping the first fiber slurry into a local defect of the carbon fiber reinforced ceramic matrix composite, and filling 60-80% of the defect; filling second fiber slurry, filling the residual 60-80% of the defect, and then extruding to discharge the redundant solvent; and then filling third fiber slurry to fill and level up the defect, and then curing at normal temperature. Local defects of the carbon fiber reinforced ceramic matrix composite material can be rapidly repaired, and high-temperature heating is not needed.
本发明公开了一种碳纤维增强陶瓷基复合材料局部缺陷修复方法，其特征在于，包括以下步骤：配制第一纤维料浆，所述第一纤维料浆包括碳纤维、水玻璃、陶瓷粉体；配制第二纤维料浆，所述第二纤维料浆包括长纤维氮化硼纤维、陶瓷粉体、溶剂；配制第三纤维料浆，所述第三纤维料浆包括短纤维氮化硼纤维、陶瓷粉体、聚合单体、交联剂、引发剂、溶剂；将第一纤维料浆浸渍到碳纤维增强陶瓷基复合材料局部缺陷处，将缺陷处的60‑80％填充；再填充第二纤维料浆，将缺陷处剩余的60‑80％填充，然后挤压排出多余的溶剂；然后再填充第三纤维料浆，将缺陷处填平，然后常温固化。实现碳纤维增强陶瓷基复合材料局部缺陷处进行快速修复且无需高温加热。
Method for repairing local defects of carbon fiber reinforced ceramic matrix composite
The invention discloses a method for repairing local defects of a carbon fiber reinforced ceramic-based composite material, which is characterized by comprising the following steps: preparing first fiber slurry which comprises carbon fibers, water glass and ceramic powder; preparing second fiber slurry, wherein the second fiber slurry comprises long-fiber boron nitride fibers, ceramic powder and a solvent; preparing third fiber slurry, wherein the third fiber slurry comprises short-fiber boron nitride fibers, ceramic powder, a polymeric monomer, a cross-linking agent, an initiator and a solvent; dipping the first fiber slurry into a local defect of the carbon fiber reinforced ceramic matrix composite, and filling 60-80% of the defect; filling second fiber slurry, filling the residual 60-80% of the defect, and then extruding to discharge the redundant solvent; and then filling third fiber slurry to fill and level up the defect, and then curing at normal temperature. Local defects of the carbon fiber reinforced ceramic matrix composite material can be rapidly repaired, and high-temperature heating is not needed.
本发明公开了一种碳纤维增强陶瓷基复合材料局部缺陷修复方法，其特征在于，包括以下步骤：配制第一纤维料浆，所述第一纤维料浆包括碳纤维、水玻璃、陶瓷粉体；配制第二纤维料浆，所述第二纤维料浆包括长纤维氮化硼纤维、陶瓷粉体、溶剂；配制第三纤维料浆，所述第三纤维料浆包括短纤维氮化硼纤维、陶瓷粉体、聚合单体、交联剂、引发剂、溶剂；将第一纤维料浆浸渍到碳纤维增强陶瓷基复合材料局部缺陷处，将缺陷处的60‑80％填充；再填充第二纤维料浆，将缺陷处剩余的60‑80％填充，然后挤压排出多余的溶剂；然后再填充第三纤维料浆，将缺陷处填平，然后常温固化。实现碳纤维增强陶瓷基复合材料局部缺陷处进行快速修复且无需高温加热。
Method for repairing local defects of carbon fiber reinforced ceramic matrix composite
一种碳纤维增强陶瓷基复合材料局部缺陷修复方法
YANG FANGHONG (author) / JIANG KAI (author) / GENG SHUWEN (author) / ZHOU CHANGLING (author) / LIU RUIXIANG (author) / LIU YUN (author) / TIAN FANG (author) / KANG LINSONG (author)
2024-07-16
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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