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Ceramic-based composite material and preparation method thereof
The invention belongs to the technical field of ceramic-based composite materials, and particularly relates to a ceramic-based composite material and a preparation method thereof. Components and contents of the prepreg layer ceramic filler are distributed in a gradient manner, and mismatching of thermal expansion coefficients among layers is relieved through gradient distribution of the ceramic components. The high-melting-point HfB2 of the outer layer (the first layer) and the HfB2-ZrC synergistic anti-ablation component of the secondary outer layer provide excellent anti-ablation performance for the composite material and delay the oxidation of the matrix; the ZrC-SiBCN ultra-high-temperature matrix of the secondary inner layer not only has excellent high-temperature mechanical properties, but also further reduces the service temperature of the thermal structure of the innermost layer (the mth layer); furthermore, the inner-layer C/SiBCN thermal structure serving at a relatively low temperature fully shows the advantage of high specific strength of the inner-layer C/SiBCN thermal structure. Therefore, the ceramic-based composite material provided by the invention not only can realize oxidation resistance and ablation resistance of the outer layer, but also can realize light weight, high strength and high temperature resistance of the inner layer material.
本发明属于陶瓷基复合材料技术领域，尤其涉及一种陶瓷基复合材料及其制备方法。本发明中的预浸料层陶瓷填料的组分、含量梯度分布，通过陶瓷组分的梯度分布缓解了各层之间的热膨胀系数不匹配。外层(第一层)的高熔点HfB2及次外层的HfB2‑ZrC协同式抗烧蚀组分为复合材料提供了优异的抗烧蚀性能并延缓了基体氧化；次内层的ZrC‑SiBCN超高温基体不仅拥有卓越的高温力学性能并进一步降低了最内层(第m层)热结构的服役温度；进一步的，在较低温度下服役的内层C/SiBCN热结构充分展现了其比强度高的优势。因此，本发明提供的陶瓷基复合材料不仅能实现外层抗氧化耐烧蚀，同时能够实现内层材料轻质高强耐高温。
Ceramic-based composite material and preparation method thereof
The invention belongs to the technical field of ceramic-based composite materials, and particularly relates to a ceramic-based composite material and a preparation method thereof. Components and contents of the prepreg layer ceramic filler are distributed in a gradient manner, and mismatching of thermal expansion coefficients among layers is relieved through gradient distribution of the ceramic components. The high-melting-point HfB2 of the outer layer (the first layer) and the HfB2-ZrC synergistic anti-ablation component of the secondary outer layer provide excellent anti-ablation performance for the composite material and delay the oxidation of the matrix; the ZrC-SiBCN ultra-high-temperature matrix of the secondary inner layer not only has excellent high-temperature mechanical properties, but also further reduces the service temperature of the thermal structure of the innermost layer (the mth layer); furthermore, the inner-layer C/SiBCN thermal structure serving at a relatively low temperature fully shows the advantage of high specific strength of the inner-layer C/SiBCN thermal structure. Therefore, the ceramic-based composite material provided by the invention not only can realize oxidation resistance and ablation resistance of the outer layer, but also can realize light weight, high strength and high temperature resistance of the inner layer material.
本发明属于陶瓷基复合材料技术领域，尤其涉及一种陶瓷基复合材料及其制备方法。本发明中的预浸料层陶瓷填料的组分、含量梯度分布，通过陶瓷组分的梯度分布缓解了各层之间的热膨胀系数不匹配。外层(第一层)的高熔点HfB2及次外层的HfB2‑ZrC协同式抗烧蚀组分为复合材料提供了优异的抗烧蚀性能并延缓了基体氧化；次内层的ZrC‑SiBCN超高温基体不仅拥有卓越的高温力学性能并进一步降低了最内层(第m层)热结构的服役温度；进一步的，在较低温度下服役的内层C/SiBCN热结构充分展现了其比强度高的优势。因此，本发明提供的陶瓷基复合材料不仅能实现外层抗氧化耐烧蚀，同时能够实现内层材料轻质高强耐高温。
Ceramic-based composite material and preparation method thereof
一种陶瓷基复合材料及其制备方法
ZHANG ZHONGWEI (author) / LI WEIJIE (author) / ZHANG YIJUN (author)
2023-12-01
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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