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C/C-SiC Materials Based on Filament Wound CFRP Preforms

Heidenreich, Bernhard and Frieß, Martin and Breede, Fabian and Klatt, Enrico and Scheiffele, Matthias and Eichhorn, Thomas (2010) C/C-SiC Materials Based on Filament Wound CFRP Preforms. ICACC 34th, 24.-29. Januar 2010, Daytona Beach, USA.

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Abstract

At DLR, CMC materials and structures based on the LSI process have been developed since the late 1980`s. In the first step of the LSI process, a CFRP preform is made using common technologies like resin transfer moulding (RTM), autoclave technique or warm pressing. Subsequently, the CFRP preform is pyrolysed and infiltrated by molten silicon. Thereby, the silicon reacts with carbon, forming a SiC matrix, leading to the final C/C-SiC material. Up to now, carbon fibre 2D woven fabrics have been used for the manufacture of thin walled, C/C-SiC structures like nose caps for thermal protection systems of spacecraft. However, for highly loaded, lightweight structures like nozzles or combustion chambers, the use of 2D woven fabrics is critical, due to the inadequate drapability and the resulting, limited strength. Therefore, CFRP-preforms based on filament winding, a well known process for the industrial production of tubular structures, have been adapted to the LSI process. Thereby, the winding angle of the fibre was varied systematically. In the resulting C/C-SiC material a strong influence of the fibre orientation to the mechanical properties was observed. In this presentation the manufacturing of tubular C/C-SiC structures via filament winding is described in detail and first results regarding microstructure and mechanical behaviour are given.

Document Type:Conference or Workshop Item (Speech)
Title:C/C-SiC Materials Based on Filament Wound CFRP Preforms
Authors:
AuthorsInstitution or Email of Authors
Heidenreich, Bernhard DLR
Frieß, Martin DLR
Breede, Fabian DLR
Klatt, Enrico DLR
Scheiffele, Matthias DLR
Eichhorn, Thomas DLR
Date:2010
Status:Published
Keywords:C/C-SiC, LSI, Filament Winding
Event Title:ICACC 34th
Event Location:Daytona Beach, USA
Event Type:international Conference
Event Dates:24.-29. Januar 2010
Organizer:American Ceramic Society
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Space (old)
HGF - Program Themes:W RP - Raumtransport
DLR - Research area:Space
DLR - Program:W RP - Raumtransport
DLR - Research theme (Project):W - Grundlagen Raumtransport - HT-Werkstoffe und Bauweisen (old)
Location: Stuttgart
Institutes and Institutions:Institute of Structures and Design > Ceramic Composite Structures
Deposited By: Bernhard Heidenreich
Deposited On:10 Jan 2011 15:48
Last Modified:10 Jan 2011 15:48

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