超高温陶瓷波纹板防隔热一体化设计、制备与表征

As one of the most important key issues for the development of hypersonic vehicles, recent research interests on ultra high temperature thermal protection systems (TPS) with the combination of lightweight and excellent resistance to ultra high temperature oxidation have been motivated. Based on the demands of lightweight, good load-bearing and integrated thermal protection abilities for future hypersonic flights, this study aims to develop novel ultra high temperature ceramic (UHTC) corrugated core sandwich panels which can work under severe oxidation environment in exceed than 1600℃, using the thermomechanical coupling theory of lightweight porous high temperature materials. . This study will focus on the design and fabrication methods for the integrated thermal protective and heat insulation UHTC corrugated core sandwich panels. The integrated thermal protective and heat insulated behaviors, as well as mechanical properties will be investigated, and the heat transfer model and thermomechanical coupling model will be highlighted and established. The objective of this study is to disclosure the integrated thermal protective and heat insulated mechanism of the UHTC corrugated core sandwich panels, and to obtain the failure model and mechanism through the thermomechanical coupling and failure analysis on this UHTC corrugated core sandwich panels. It is believed that this study can provide theoretical and experimental references for the design, analysis and security assessment of the ultra high temperature TPS of our country’s future hypersonic vehicles.

超高温热防护系统是高超声速飞行器研制成败的关键技术之一，发展新型轻质超高温热防护系统具有重要的科学意义和工程应用价值。本项目针对高超声速飞行器对轻质-承载-防隔热一体化的超高温热防护系统的需求，通过热力耦合环境下轻质多孔高温材料的热力耦合理论与设计方法研究，发展适用于1600℃以上服役环境的超高温陶瓷波纹板结构。项目重点探索超高温陶瓷波纹板的防隔热一体化结构优化与制备方法、性能表征方法，建立超高温陶瓷波纹板传热模型与热力耦合模型，揭示超高温陶瓷波纹板防隔热机理，并开展超高温陶瓷波纹板热力耦合变形与破坏的机理分析研究，获得超高温陶瓷波纹板失效机理，为我国临近空间高超声速飞行器超高温热防护系统的设计、分析及安全评估提供理论与实验依据。

超高温热防护系统是高超声速飞行器研制成败的关键技术之一，发展新型轻质超高温热防护系统具有重要的科学意义和工程应用价值。本项目针对高超声速飞行器对轻质-承载-防隔热一体化的超高温热防护系统的需求，通过热力耦合环境下轻质多孔高温材料的热力耦合理论与设计方法研究，发展适用于1600℃以上服役环境的超高温陶瓷波纹板结构。项目重点探索了超高温陶瓷波纹板的防隔热一体化结构优化与制备方法、性能表征方法，建立超高温陶瓷波纹板传热模型与热力耦合模型，揭示超高温陶瓷波纹板防隔热机理，并开展超高温陶瓷波纹板热力耦合变形与破坏的机理分析研究，获得超高温陶瓷波纹板失效机理，有望为我国临近空间高超声速飞行器超高温热防护系统的设计、分析及安全评估提供理论与实验依据。