Application and technical analysis of ceramic composite combustor liner
Based on the development trend and characteristics of aero-engine and combustor,the demand of ceramic composite materials for new generation aero-engine combustor was analyzed,the composition,type characteristics and high temperature corrosion resistance of ceramic composite liners were expounded,the process principle,advantages and disadvantages of ceramic composite liners under different fabrication methods were summarized,and the application status of ceramic composite materials in combustor liner was discussed in detail,finally,combined with the significant anisotropic characteristics and challenges of ceramic composite materials,the key technologies for the design of ceramic composite liner of combustor were proposed.The result showed that the ceramic composite liner had obvious technical advantages in the application of combustor,and its service status on multiple advanced military and civil aviation engines verified the feasibility of developing the technical route of ceramic composite liner.However,due to the high sensitivity of ceramic composite to thermal stress and its complex heat transfer and mechanical characteristics,its engineering application still faced great technical challenges;the key technologies that need to be solved urgently in the engineering application of ceramic composite liner include the cooling design of ceramic composite liner,the combustion organization design of ceramic composite combustor,the connection design of ceramic composite liner components,and the forward strength design of ceramic composite liner.
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