Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Polymer-derived Cf-Si3N4 composite ceramic and preparation method thereof
The invention belongs to the technical field of preparation of silicon nitride ceramic materials, and particularly relates to a polymer-derived Cf-Si3N4 composite ceramic and a preparation method thereof. According to the preparation method of the polymer-derived Cf-Si3N4 composite ceramic provided by the invention, the composite ceramic is prepared by combining polymer derivation with a high-temperature and high-pressure method. According to the preparation method disclosed by the invention, the process of the precursor ceramic powder formed by the polymer is designed, so that the micro-nano-scale amorphous SiCN precursor can be effectively obtained; and high-temperature crystallization and densification of the polymer precursor ceramic can be effectively promoted by combining a high-temperature and high-pressure technology. According to the method provided by the invention, rapid preparation of the Cf/Si3N4 composite ceramic can be realized, and the prepared composite ceramic has excellent density, electrical conductivity and mechanical properties, is very suitable for preparing a carbon-reinforced ceramic-based composite material, and has wide practical application value in the fields of preparation and application of a silicon nitride ceramic material.
本发明属于氮化硅陶瓷材料制备技术领域，具体涉及一种聚合物衍生Cf‑Si3N4复合陶瓷及其制备方法。本发明提供的聚合物衍生Cf‑Si3N4复合陶瓷的制备方法，采用聚合物衍生结合高温高压方法制备复合陶瓷。本发明通过对聚合物形成的先驱体陶瓷粉体的工艺进行设计，能够有效得到微纳米级别的非晶SiCN前驱体；结合高温高压技术能够有效促进聚合物前驱体陶瓷的高温晶化与致密化。本发明提供的上述方法，不仅能够实现Cf/Si3N4复合陶瓷的快速制备，而且制备所得复合陶瓷具有优良的致密度、电导性以及力学性能，非常适合用来制备碳增强陶瓷基复合材料，在氮化硅陶瓷材料的制备和应用领域具有广泛的实际应用价值。
Polymer-derived Cf-Si3N4 composite ceramic and preparation method thereof
The invention belongs to the technical field of preparation of silicon nitride ceramic materials, and particularly relates to a polymer-derived Cf-Si3N4 composite ceramic and a preparation method thereof. According to the preparation method of the polymer-derived Cf-Si3N4 composite ceramic provided by the invention, the composite ceramic is prepared by combining polymer derivation with a high-temperature and high-pressure method. According to the preparation method disclosed by the invention, the process of the precursor ceramic powder formed by the polymer is designed, so that the micro-nano-scale amorphous SiCN precursor can be effectively obtained; and high-temperature crystallization and densification of the polymer precursor ceramic can be effectively promoted by combining a high-temperature and high-pressure technology. According to the method provided by the invention, rapid preparation of the Cf/Si3N4 composite ceramic can be realized, and the prepared composite ceramic has excellent density, electrical conductivity and mechanical properties, is very suitable for preparing a carbon-reinforced ceramic-based composite material, and has wide practical application value in the fields of preparation and application of a silicon nitride ceramic material.
本发明属于氮化硅陶瓷材料制备技术领域，具体涉及一种聚合物衍生Cf‑Si3N4复合陶瓷及其制备方法。本发明提供的聚合物衍生Cf‑Si3N4复合陶瓷的制备方法，采用聚合物衍生结合高温高压方法制备复合陶瓷。本发明通过对聚合物形成的先驱体陶瓷粉体的工艺进行设计，能够有效得到微纳米级别的非晶SiCN前驱体；结合高温高压技术能够有效促进聚合物前驱体陶瓷的高温晶化与致密化。本发明提供的上述方法，不仅能够实现Cf/Si3N4复合陶瓷的快速制备，而且制备所得复合陶瓷具有优良的致密度、电导性以及力学性能，非常适合用来制备碳增强陶瓷基复合材料，在氮化硅陶瓷材料的制备和应用领域具有广泛的实际应用价值。
Polymer-derived Cf-Si3N4 composite ceramic and preparation method thereof
一种聚合物衍生Cf-Si3N4复合陶瓷及其制备方法
PENG WENFENG (Autor:in) / SHAO GANG (Autor:in) / ZHANG ZHUANGFEI (Autor:in) / WANG XINYU (Autor:in) / WANG HAILONG (Autor:in) / ZHANG RUI (Autor:in) / HU YIBO (Autor:in)
12.04.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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