Actively cooled ceramic matrix composite technology is a novel thermal management concept for advanced propulsion systems e. G. Scramjet engine, cryogenic rocket engine and gas turbine engine etc. . Combining both advantages of refractory materials and cooling structures, the concept is able to meet high performance goals at improving operating temperature margin, lower weight, increasing payloads and range, which is identified as a key technology for enabling reliable and low-cost space access. Through the collaborative efforts between US and Europe, this technology development is undergoing the transition from theoretical research and sub-scale investigation to full scale components fabrication for ground tests. In this concept,the integrated design that all CMC structure with built-in regenerative cooling channels or effusion holes by innovative preforming techniques are more efficient and feasible, thus is regarded as the most promising one for future propulsion system applications.%主动冷却陶瓷基复合材料结构技术是一种新型热防护技术,它综合了耐高温材料与冷却结构各自优势,可显著提高构件热容限,降低单位质量,提高推重比,在超燃冲压发动机等先进推进系统上具有良好应用潜力,被认为是实现低成本、高可靠空间飞行的关键技术之一,得到美、法、德等国的积极研究,基于前期机理探讨及缩比件考核结果,目前正向全尺寸工程样机阶段过渡.其中,利用多种精细成型工艺在纤维增强陶瓷基复合材料(CMC)构件内部成型再生冷却流道或发汗冷却多孔结构的全CMC方案具有较高的先进性与可行性,代表了未来发展方向.
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