molten chlorides
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2022 ◽  
Vol 237 ◽  
pp. 111557
Author(s):  
Mickael Lambrecht ◽  
María Teresa de Miguel ◽  
María Isabel Lasanta ◽  
Francisco Javier Pérez

2021 ◽  
Vol 31 (5) ◽  
pp. 1496-1505
Author(s):  
Liang XU ◽  
Yan-hang XIONG ◽  
Jin-wei MENG ◽  
Jia-bao WANG ◽  
Zhong-sheng HUA ◽  
...  

Energies ◽  
2021 ◽  
Vol 14 (9) ◽  
pp. 2599
Author(s):  
Wenjin Ding ◽  
Yuan Shi ◽  
Markus Braun ◽  
Fiona Kessel ◽  
Martin Frieß ◽  
...  

Oxide ceramics could be attractive high-temperature construction materials for critical structural parts in high-temperature 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, and therefore extends their applications. In this work, 3D-printed ZrO2 and Al2O3 ceramics were immersed in molten MgCl2/KCl/NaCl under argon or exposed in argon without molten chlorides at 700 °C for 600 h. Their material properties and microstructure were investigated through three-point-bend (3PB) testing and material analysis with SEM-EDX and XRD. The results show that the 3D-printed Al2O3 maintained its mechanical property after exposure in the strongly corrosive molten chloride salt. The 3D-printed ZrO2 had an enhanced 3PB strength after molten salt exposure, whereas no change was observed after exposure in argon at 700 °C. The material analysis shows that some of the ZrO2 on the sample surface changed its crystal structure and shape (T→M phase transformation) after molten salt exposure, which could be the reason for the enhanced 3PB strength. The thermodynamic calculation shows that the T→M transformation could be caused by the reaction of the Y2O3-stabilized ZrO2 with MgCl2 (mainly Y2O3 and ZrO2 with gaseous MgCl2). In conclusion, the 3D-printed ZrO2 and Al2O3 ceramics have excellent compatibility with corrosive molten chlorides at high temperatures and thus show a sound application potential as construction materials for molten chlorides.


2021 ◽  
Vol 168 (5) ◽  
pp. 052503
Author(s):  
Yoshiharu Sakamura ◽  
Tsuyoshi Murakami ◽  
Koichi Uozumi
Keyword(s):  

2021 ◽  
Vol 79 (12) ◽  
pp. 1425
Author(s):  
Yichuan Liu ◽  
Yalan Liu ◽  
Shilin Jiang ◽  
Mei Li ◽  
Weiqun Shi

2020 ◽  
Vol MA2020-02 (59) ◽  
pp. 3001-3001
Author(s):  
Igor N Skryptun ◽  
Olga V Bosenko

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