Design, Manufacture, and Characterization of a Carbon Fiber‐Reinforced Silicon Carbide Nozzle Extension. Issue 1 (18th October 2015)

• Record Type: Journal Article
• Authors: Breede, Fabian; Hofmann, Severin; Jain, Neraj; Jemmali, Raouf
• Is Part Of: International journal of applied ceramic technology. Volume 13:Issue 1(2016:Jan./Feb.)
• Page Start: 3
• Page End: 16
• Publication Date: 2015-10-18
• Subjects: Ceramics -- Periodicals; Ceramics -- Technological innovations -- Periodicals; 620.1405
• DOI: 10.1111/ijac.12496
• Languages: English
• ISSNs: 1546-542X

Abstract

Abstract : Nozzle extensions made of ceramic matrix composites (CMCs) have shown the potential to replace heavy superalloy nozzles and improve the performance of future upper‐stage and orbital rocket engines. Gas permeability has been reported to be a critical issue during the manufacture for CMC nozzles. This work shows the manufacture of a dense radiation‐cooled C/C‐SiC nozzle demonstrator. A multi‐angle fiber architecture was applied using filament winding technique to reduce the incidence of delaminations during the manufacturing process under high temperatures. Additional efforts were made to improve the final gas tightness and reduce the amount of residual silicon by means of an adapted liquid silicon infiltration process. The manufacture, the material, and structural characterization as well as a finite element analysis of a performed internal pressure test are presented.