GE公司预浸料-熔渗工艺SiCf/SiC复合材料应用研究历程及启示  

Application and implications of GE prepreg-melt infiltration process in SiCf/SiC composites research

作　　者：王雅娜 李天山 王海润 焦健 WANG Yana;LI Tianshan;WANG Hairun;JIAO Jian(Division of Ceramic Matrix Composites,AECC Beijing Institute of Aeronautical Materials,Beijing 100095,China;National Key Laboratory of Advanced Composites,AECC Beijing Institute of Aeronautical Materials,Beijing 100095,China;School of Aerospace Engineering,Beijing Institute of Technology,Beijing 100081,China)

机构地区：[1]中国航发北京航空材料研究院陶瓷基复合材料研究所,北京100095 [2]中国航发北京航空材料研究院先进复合材料国防科技重点实验室,北京100095 [3]北京理工大学宇航学院,北京100081

出　　处：《航空材料学报》2025年第2期1-17,共17页Journal of Aeronautical Materials

基　　金：稳定支持项目(2019-363)。

摘　　要：美国通用电气航空公司(简称GE公司)自20世纪80年代开始预浸料-熔渗工艺SiCf/SiC复合材料的研发,组织数百名科学家和工程师,历时30年、累计投入近15亿美金,最终实现了该材料在发动机领域的成功应用与商业化。本文详细阐述了GE公司预浸料-熔渗工艺SiCf/SiC复合材料螺旋式的发展历程,聚焦其在燃气轮机和航空发动机热端部件领域的创新实践,通过多个典型热端构件研发的案例分析,揭示了GE公司以“需求牵引-技术验证-工程迭代”为核心的研发范式,并深度解构了GE公司的7FA发动机涡轮外环组件跨越10年的渐进式设计迭代路径,层层解构其服役失效逆向反馈与正向设计牵引的协同优化逻辑。针对国外发展现状,本文进一步解读了GE公司通过垂直整合制造链,引入数字孪生工艺优化,建立机器学习检测体系,构建“材料-工艺-检测”三位一体的技术壁垒。GE公司发展经验表明,技术突破需兼顾长期基础研究与敏捷工程迭代,国内应通过技术体系革新,以典型构件为牵引,建立“设计-制造-考核”闭环的研发流程,建立多学科平等协同机制。强化基础能力,依托高校和国家级研发中心开展机理研究,实施热-力-化学多场耦合约束下的多维度协同优化,尽快推进产业生态构建,整合零散资源,搭建“产学研”快速验证平台。提早布局数字化赋能,实施全链条数据采集与AI嵌入。最后通过深度凝练外在相关技术领域的成功经验,结合国内实际情况,提出了涵盖“基础研究-中试验证-标准建设-产业协同”的自主化发展路线图,旨在为国内高推重比航空发动机用陶瓷基复合材料技术攻关提供方法论层面的战略参考。The United States General Electric Company(referred to as GE)has conducted research on SiCf/SiC composite materials since the 1980s.The successful application and commercialization of GE’s SiCf/SiC composites in engine systems were achieved after 30 years of continuous investment(nearly 1.5 billion USD)and the collaborative efforts of hundreds of scientists and engineers.This paper details the spiral development history of GE’s prepreg-melt infiltration(MI)SiCf/SiC composites,focusing on their innovative applications in hot-section components for gas turbines and aero-engines.Through case studies of several critical hotsection components,GE’s research paradigm of“demand traction,technology verification,and engineering iteration”is elucidated.Furthermore,the 10-year progressive design iteration path of the 7FA engine turbine shroud is systematically analyzed,revealing the synergistic optimization logic between service failure feedback and forward design validation.In light of international advancements,this paper interprets GE’s establishment of a“material-process-test”technological barrier through vertical supply chain integration,digital twin-driven process optimization,and machine-learning-based inspection systems.GE’s experience demonstrates that technological breakthroughs require a balance between long-term fundamental research and agile engineering iteration.For domestic development,a closed-loop“design-manufacturing-assessment”research and development process should be established,guided by critical components,alongside multidisciplinary collaboration mechanisms.Additionally,China should strengthen foundational capabilities by leveraging universities and national research and development centers for mechanistic studies,implement multi-dimensional optimization under thermo-mechanical-chemical coupling constraints,accelerate industrial ecosystem construction,integrate fragmented resources,and build rapid“industry-academia-research”verification platforms.A digital transformation stra

关 键 词：SICF/SIC复合材料 预浸料-熔渗 发动机 应用研究 

分 类 号：V254.2[一般工业技术—材料科学与工程]