scholarly journals Influence of different atmospheres on molten salt chemistry and its effect on steel corrosion

2018 ◽  
Author(s):  
Alexander Bonk ◽  
Markus Braun ◽  
Andrea Hanke ◽  
Jochen Forstner ◽  
Dagmar Rückle ◽  
...  
Keyword(s):  
Molten Salt ◽  
Steel Corrosion ◽  
Molten Salt Chemistry

Advances in molten salt chemistry, vol. 6

1988 ◽  
Vol 347 (1-2) ◽  
pp. C13-C14
Author(s):  
Kenneth R. Seddon
Keyword(s):  
Molten Salt ◽  
Molten Salt Chemistry

scholarly journals The Complex Structure of Molten NaCl-CrCl3 Salt: Cr-Cl Octahedra Network and Intermediate-Range Order

2020 ◽  
Author(s):  
Qing-Jie Li ◽  
David Sprouster ◽  
Guiqiu Zheng ◽  
Jӧrg Neuefeind ◽  
Alex Braatz ◽  
...  
Keyword(s):  
Molten Salt ◽  
Complex Structure ◽  
Range Order ◽  
Interatomic Potentials ◽  
Intermediate Range ◽  
Ab Initio Simulations ◽  
Intermediate Range Order ◽  
Atomistic Models ◽  
Molten Salt Chemistry ◽  
Remarkable Agreement

The resurgence of the Molten-Salt Nuclear Reactors (MSR) creates interesting problems in molten-salt chemistry. As MSRs operate, the composition and physical properties of salts change because of fission and corrosion. Since Cr is the principal corrosion product and NaCl is a common constituent, we studied the atomic structure of molten NaCl-CrCl3. We found networks of CrCl3− 6 octahedra and an intermediate-range order with nonmonotonic temperature behavior in a remarkable agreement between measurements and ab initio simulations. Even though the corrosion results in minute quantities of dissolved Cr, the speciation of Cr could lead to changes in molten-salt properties in nuclear and solar salts. In particular, we found a much lower than expected melting temperature and a broad metastable liquid-solid coexistence phase. The availability of Cr isotopes with very different neutron-scattering properties makes Cr an ideal model multi-valent ion for experimental validation of new atomistic models such as neural network interatomic potentials.

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