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Preparation method of particle-reinforced ultrahigh-temperature ceramic-based composite material
The invention relates to a preparation method of a particle-reinforced ultrahigh-temperature ceramic-based composite material, which comprises the following steps of: preparing mixed powder, preparing a carbon fiber preform, impregnating a precursor, carrying out curing and cracking, and repeating the precursor impregnation, curing and cracking multiple times to obtain the particle-reinforced ultrahigh-temperature ceramic-based composite material. According to the invention, the ultrahigh-temperature ceramic particles are introduced into the carbon fiber woven body and are combined with the impregnation and cracking of the ultrahigh-temperature ceramic precursor, so that the impregnation period can be reduced to less than 10 times, and the preparation period is shortened; and meanwhile, the price of the ultrahigh-temperature ceramic powder is obviously reduced compared with that of an ultrahigh-temperature ceramic precursor, so that the preparation cost of the composite material can be reduced.
本发明涉及一种颗粒增强超高温陶瓷基复合材料的制备方法，包括：混合粉体的制备、碳纤维预制体的制备、前驱体浸渍、固化和裂解、重复前驱体浸渍、固化和裂解多次，制得颗粒增强超高温陶瓷基复合材料。本发明通过在碳纤维编制体中引入超高温陶瓷颗粒，并将其与超高温陶瓷前驱体浸渍‑裂解相结合的方式，可使浸渍周期降低到10次以内，缩短制备周期；同时，由于超高温陶瓷粉体较超高温陶瓷前驱体价格明显降低，能够降低复合材料制备成本。
Preparation method of particle-reinforced ultrahigh-temperature ceramic-based composite material
The invention relates to a preparation method of a particle-reinforced ultrahigh-temperature ceramic-based composite material, which comprises the following steps of: preparing mixed powder, preparing a carbon fiber preform, impregnating a precursor, carrying out curing and cracking, and repeating the precursor impregnation, curing and cracking multiple times to obtain the particle-reinforced ultrahigh-temperature ceramic-based composite material. According to the invention, the ultrahigh-temperature ceramic particles are introduced into the carbon fiber woven body and are combined with the impregnation and cracking of the ultrahigh-temperature ceramic precursor, so that the impregnation period can be reduced to less than 10 times, and the preparation period is shortened; and meanwhile, the price of the ultrahigh-temperature ceramic powder is obviously reduced compared with that of an ultrahigh-temperature ceramic precursor, so that the preparation cost of the composite material can be reduced.
本发明涉及一种颗粒增强超高温陶瓷基复合材料的制备方法，包括：混合粉体的制备、碳纤维预制体的制备、前驱体浸渍、固化和裂解、重复前驱体浸渍、固化和裂解多次，制得颗粒增强超高温陶瓷基复合材料。本发明通过在碳纤维编制体中引入超高温陶瓷颗粒，并将其与超高温陶瓷前驱体浸渍‑裂解相结合的方式，可使浸渍周期降低到10次以内，缩短制备周期；同时，由于超高温陶瓷粉体较超高温陶瓷前驱体价格明显降低，能够降低复合材料制备成本。
Preparation method of particle-reinforced ultrahigh-temperature ceramic-based composite material
一种颗粒增强超高温陶瓷基复合材料的制备方法
WANG YANYAN (author) / JIANG KAI (author) / LUAN QIANG (author) / ZHOU CHANGLING (author) / ZHANG JIALU (author) / YANG FANGHONG (author)
2021-04-13
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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