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C/C-SiC component for metallic phase change materials

Stahl, Veronika and Shi, Yuan and Kraft, Werner and Lanz, Tim and Vetter, Peter and Jemmali, Raouf and Kessel, Fiona and Koch, Dietmar (2020) C/C-SiC component for metallic phase change materials. International Journal of Applied Ceramic Technology, pp. 1-11. Wiley. doi: 10.1111/ijac.13570. ISSN 1546-542X.

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Thanks to their high energy density and thermal conductivity, metallic Phase Change Materials (mPCM) have shown great potential to improve the performance of thermal energy storage systems. However, the commercial application of mPCM is still limited due to their corrosion behavior with conventional container materials. This work first addresses on a fundamental level, whether carbon-based composite ceramics are suitable for corrosion critical components in a thermal storage system. The compatibility between the mPCM AlSi12 and the Liquid Silicon Infiltration (LSI)-based carbon fiber reinforced silicon carbide (C/C-SiC) composite is then investigated via contact angle measurements, microstructure analysis, and mechanical testing after exposure. The results reveal that the C/C-SiC composite maintains its mechanical properties and microstructure after exposure in the strongly corrosive mPCM. Based on these results, efforts were made to design and manufacture a container out of C/C-SiC for the housing of mPCM in vehicle application. The stability of the component filled with mPCM was proven nondestructively via computer tomography (CT). Successful thermal input- and output as well as thermal storage ability were demonstrated using a system calorimeter under conditions similar to the application. The investigated C/C-SiC composite has significant application potential as a structural material for thermal energy storage systems with mPCM.

Item URL in elib:https://elib.dlr.de/135348/
Document Type:Article
Title:C/C-SiC component for metallic phase change materials
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Stahl, VeronikaVeronika.Stahl (at) dlr.dehttps://orcid.org/0000-0002-1866-3369
Shi, Yuanyuan.shi (at) dlr.dehttps://orcid.org/0000-0002-4210-9069
Kraft, WernerWerner.Kraft (at) dlr.dehttps://orcid.org/0000-0002-1971-2353
Lanz, Timtim.lanz (at) dlr.deUNSPECIFIED
Vetter, PeterPeter.Vetter (at) dlr.deUNSPECIFIED
Jemmali, RaoufRaouf.Jemmali (at) dlr.deUNSPECIFIED
Kessel, FionaFiona.Kessel (at) dlr.deUNSPECIFIED
Koch, DietmarDietmar.Koch (at) dlr.dehttps://orcid.org/0000-0003-4504-8721
Journal or Publication Title:International Journal of Applied Ceramic Technology
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In ISI Web of Science:Yes
DOI :10.1111/ijac.13570
Page Range:pp. 1-11
Keywords:ceramic matrix composited (CMCs), corrosion, joints/joining, mechanical properties
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Transport
HGF - Program Themes:Transport System
DLR - Research area:Transport
DLR - Program:V VS - Verkehrssystem
DLR - Research theme (Project):V - Energie und Verkehr
Location: Stuttgart
Institutes and Institutions:Institute of Vehicle Concepts > Alternative Energiewandler
Institute of Structures and Design > Ceramic Composite Structures
Deposited By: Stahl, Veronika
Deposited On:08 Jul 2020 15:32
Last Modified:08 Jul 2020 15:32

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