Premium
C/C‐SiC component for metallic phase change materials
Author(s) -
Stahl Veronika,
Shi Yuan,
Kraft Werner,
Lanz Tim,
Vetter Peter,
Jemmali Raouf,
Kessel Fiona,
Koch Dietmar
Publication year - 2020
Publication title -
international journal of applied ceramic technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.4
H-Index - 57
eISSN - 1744-7402
pISSN - 1546-542X
DOI - 10.1111/ijac.13570
Subject(s) - materials science , silicon carbide , microstructure , composite number , composite material , thermal energy storage , ceramic , thermal conductivity , corrosion , biology , ecology
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 AlSi 12 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.