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Application of chopped carbon fiber gradient toughened ultrahigh-melting-point ceramic matrix composite material
The invention discloses an application of a chopped carbon fiber gradient toughened ultrahigh-melting-point ceramic-based composite material, and the chopped carbon fiber gradient toughened ultrahigh-melting-point ceramic-based composite material overcomes the intrinsic defect of low fracture toughness of a pure ceramic material. The material has excellent ablation resistance while maintaining high-temperature structural stability, and is suitable for ablation-resistant protection at ultrahigh temperature of 3000 DEG C or above. Experimental verification shows that the ceramic-based composite material still keeps a continuous and stable anti-oxidation protection structure and a state close to zero ablation rate after being ablated for an ultra-long time (300 seconds).
本发明公开了一种短切碳纤维梯度增韧超高熔点陶瓷基复合材料的应用，所述的一种短切碳纤维梯度增韧超高熔点陶瓷基复合材料，改善了纯陶瓷材料存在的断裂韧性低的本征缺陷，使材料在保持高温结构稳定性的同时具有优异的耐烧蚀性能，适用于3000℃及以上超高温耐烧蚀防护。通过实验验证发现经超长时间(300s)烧蚀后陶瓷基复合材料仍保持连续稳定的抗氧化防护结构和接近零烧蚀率的状态。
Application of chopped carbon fiber gradient toughened ultrahigh-melting-point ceramic matrix composite material
The invention discloses an application of a chopped carbon fiber gradient toughened ultrahigh-melting-point ceramic-based composite material, and the chopped carbon fiber gradient toughened ultrahigh-melting-point ceramic-based composite material overcomes the intrinsic defect of low fracture toughness of a pure ceramic material. The material has excellent ablation resistance while maintaining high-temperature structural stability, and is suitable for ablation-resistant protection at ultrahigh temperature of 3000 DEG C or above. Experimental verification shows that the ceramic-based composite material still keeps a continuous and stable anti-oxidation protection structure and a state close to zero ablation rate after being ablated for an ultra-long time (300 seconds).
本发明公开了一种短切碳纤维梯度增韧超高熔点陶瓷基复合材料的应用，所述的一种短切碳纤维梯度增韧超高熔点陶瓷基复合材料，改善了纯陶瓷材料存在的断裂韧性低的本征缺陷，使材料在保持高温结构稳定性的同时具有优异的耐烧蚀性能，适用于3000℃及以上超高温耐烧蚀防护。通过实验验证发现经超长时间(300s)烧蚀后陶瓷基复合材料仍保持连续稳定的抗氧化防护结构和接近零烧蚀率的状态。
Application of chopped carbon fiber gradient toughened ultrahigh-melting-point ceramic matrix composite material
一种短切碳纤维梯度增韧超高熔点陶瓷基复合材料的应用
PENG ZHENG (Autor:in) / CHEN SI'AN (Autor:in) / MA QINGSONG (Autor:in) / GUO LEI (Autor:in) / WANG WEIDE (Autor:in)
10.05.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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