Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Preparation method of superhigh-temperature ceramic-based composite material with axial gradient and plane homogeneity
The invention discloses a preparation method of an axial gradient and planar homogeneous ultrahigh-temperature ceramic matrix composite, which comprises the following steps of: enabling a carbon phase to change in an axial gradient manner by a method of combining axial gradient carbon fiber preform weaving and gradient low-melting-point alloy wire dot matrix implanting; the ceramic phase is in a form of continuous component gradient distribution and planar lattice homogeneous distribution in the gradient C/C matrix, and the method realizes the design of a strong ceramic phase interface close to the ablation end in the axial direction and the phase distribution regulation and control that the content of the superhigh-temperature ceramic phase is sequentially decreased and the carbon phase is sequentially increased in the direction from the ablation end close to the ablation end far away from the ablation end; in the plane direction, the ceramic phases are uniformly distributed, and finally the gradient ceramic-based composite material which meets the material performance requirements and is characterized in that the components and contents of different ceramic phases and carbon phases in the axial direction are in gradient change, and the ceramic phases are uniformly distributed on the plane is formed.
本发明公开了一种轴向梯度和平面均质的超高温陶瓷基复合材料的制备方法，通过轴向梯度碳纤维预制体编织和梯度低熔点合金丝点阵植入相结合的方法，使碳相呈轴向梯度变化，陶瓷相在梯度C/C基体内部呈连续成分梯度分布和平面点阵均质分布的形态，本发明方法实现了轴向上，近烧蚀端的强陶瓷相界面设计，以及近烧蚀端向远烧蚀端方向，超高温陶瓷相含量依次递减，而碳相依次递增的物相分布调控；平面方向上，各陶瓷相均匀分布，最终形成了一种满足材料性能要求的轴向上不同陶瓷相、碳相成分和含量呈梯度变化，平面上陶瓷相均匀分布的梯度陶瓷基复合材料。
Preparation method of superhigh-temperature ceramic-based composite material with axial gradient and plane homogeneity
The invention discloses a preparation method of an axial gradient and planar homogeneous ultrahigh-temperature ceramic matrix composite, which comprises the following steps of: enabling a carbon phase to change in an axial gradient manner by a method of combining axial gradient carbon fiber preform weaving and gradient low-melting-point alloy wire dot matrix implanting; the ceramic phase is in a form of continuous component gradient distribution and planar lattice homogeneous distribution in the gradient C/C matrix, and the method realizes the design of a strong ceramic phase interface close to the ablation end in the axial direction and the phase distribution regulation and control that the content of the superhigh-temperature ceramic phase is sequentially decreased and the carbon phase is sequentially increased in the direction from the ablation end close to the ablation end far away from the ablation end; in the plane direction, the ceramic phases are uniformly distributed, and finally the gradient ceramic-based composite material which meets the material performance requirements and is characterized in that the components and contents of different ceramic phases and carbon phases in the axial direction are in gradient change, and the ceramic phases are uniformly distributed on the plane is formed.
本发明公开了一种轴向梯度和平面均质的超高温陶瓷基复合材料的制备方法，通过轴向梯度碳纤维预制体编织和梯度低熔点合金丝点阵植入相结合的方法，使碳相呈轴向梯度变化，陶瓷相在梯度C/C基体内部呈连续成分梯度分布和平面点阵均质分布的形态，本发明方法实现了轴向上，近烧蚀端的强陶瓷相界面设计，以及近烧蚀端向远烧蚀端方向，超高温陶瓷相含量依次递减，而碳相依次递增的物相分布调控；平面方向上，各陶瓷相均匀分布，最终形成了一种满足材料性能要求的轴向上不同陶瓷相、碳相成分和含量呈梯度变化，平面上陶瓷相均匀分布的梯度陶瓷基复合材料。
Preparation method of superhigh-temperature ceramic-based composite material with axial gradient and plane homogeneity
一种轴向梯度和平面均质的超高温陶瓷基复合材料的制备方法
SUN WEI (Autor:in) / TIAN TIAN (Autor:in) / XIONG XIANG (Autor:in) / ZHANG HONGBO (Autor:in)
22.04.2022
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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