Compatibility of 3D-Printed Oxide Ceramics with Molten Chloride Salts for High-Temperature Thermal Energy Storage in Next-Generation CSP Plants
نویسندگان
چکیده
Oxide ceramics could be attractive high-temperature construction materials for critical structural parts in molten salt thermal energy storage systems due to their excellent corrosion resistance and good mechanical properties. The 3D-printing technology allows the production of ceramic components with highly complex geometries, therefore extends applications. In this work, 3D-printed ZrO2 Al2O3 were immersed MgCl2/KCl/NaCl under argon or exposed without chlorides at 700 °C 600 h. Their material properties microstructure investigated through three-point-bend (3PB) testing analysis SEM-EDX XRD. results show that maintained its property after exposure strongly corrosive chloride salt. had an enhanced 3PB strength exposure, whereas no change was observed °C. shows some on sample surface changed crystal structure shape (T→M phase transformation) which reason strength. thermodynamic calculation T→M transformation caused by reaction Y2O3-stabilized MgCl2 (mainly Y2O3 gaseous MgCl2). conclusion, have compatibility high temperatures thus a sound application potential as chlorides.
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ژورنال
عنوان ژورنال: Energies
سال: 2021
ISSN: ['1996-1073']
DOI: https://doi.org/10.3390/en14092599