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C/C-SiC sandwich structures manufactured via liquid silicon infiltration

Heidenreich, Bernhard and Koch, Dietmar and Kraft, Harald and Klett, Yves (2017) C/C-SiC sandwich structures manufactured via liquid silicon infiltration. International Journal of Materials Research, 32 (17), pp. 3383-3393. Carl Hanser Verlag. DOI: 10.1557/jmr.2017.208 ISSN 1862-5282

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In a new design approach, C/C-SiC sandwich structures have been realized via liquid silicon infiltration (LSI) and in situ joining method. In the first process step, carbon fibre reinforced polymer (CFRP) preforms for the planar skin plates as well as for the core structures were manufactured via warm pressing and autoclave technique, using C fibre fabrics preimpregnated with phenolic resin. Thereby two types of C/C-SiC core structures were used: foldcore and grid core. In the second process step, the sandwich components were pyrolysed separately, leading to porous C/C preforms and subsequently joined to a C/C sandwich structure, using an adhesive. In the last process step the C/C structure was infiltrated with molten Si and the SiC matrix was built up by a chemical reaction of Si and C, leading to a permanently joined C/C-SiC sandwich structure. For mechanical characterization, sandwich specimens were manufactured and tested in 4 point bending.

Item URL in elib:https://elib.dlr.de/117608/
Document Type:Article
Title:C/C-SiC sandwich structures manufactured via liquid silicon infiltration
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Heidenreich, BernhardBernhard.Heidenreich (at) dlr.deUNSPECIFIED
Koch, DietmarDietmar.Koch (at) dlr.dehttps://orcid.org/0000-0003-4504-8721
Kraft, HaraldHarald.Kraft (at) dlr.deUNSPECIFIED
Klett, YvesUniversity of Stuttgart, Institute of Aircraft DesignUNSPECIFIED
Date:14 September 2017
Journal or Publication Title:International Journal of Materials Research
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:Yes
DOI :10.1557/jmr.2017.208
Page Range:pp. 3383-3393
Publisher:Carl Hanser Verlag
Keywords:Keramische Verbundwerkstoffe, Sandwichstruktur, Keramik
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Space Transport
DLR - Research area:Raumfahrt
DLR - Program:R RP - Raumtransport
DLR - Research theme (Project):R - Wiederverwendbare Raumfahrtsysteme und Antriebstechnologie
Location: Stuttgart
Institutes and Institutions:Institute of Structures and Design > Ceramic Composite Structures
Institute of Structures and Design > Structural Integrity
Deposited By: Heidenreich, Bernhard
Deposited On:12 Jan 2018 11:47
Last Modified:10 Jan 2019 15:48

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