NSLS-II   |   CFN   |   Brookhaven National Laboratory

Workshop 5:  Molten Salt Properties, Structures and Interfaces Under Extreme Environments

Date: Tuesday, May 21, 2019

Organizer(s): James Wishart (Chemistry/BNL), Simon Pimblott (Deputy Director, Energy Frontier Center on Molten Salts in Extreme Environments, INL), Shannon Mahurin (Chemical Sciences Division, ORNL), Lynne Ecker (Nuclear Science and Technology/BNL)

Location: Center for Functional Nanomaterials (CFN) Bldg. 735


Molten salts (MS) are proposed as liquid fuels and/or coolants in advanced nuclear reactor designs. Due to their nature as ionic fluids, MS have structural and dynamical correlations distinct from those of uncharged molecular or atomic liquids. Further technological advances require a better understanding of the structural characteristics of pure MS, MS with dissolved metal ions (such as actinides and fission products), and their interactions with metal surfaces leading to corrosion. Synchrotron and microscopy methods will continue to provide fundamental, atomic-level understanding of bulk and interfacial molten salts. This workshop will highlight current research on microscopy and synchrotron x-ray spectroscopy, scattering and imaging techniques to understand bulk structure and interfacial properties and reactions in molten salts. Developments in experimental methods, such as new in situ, high-temperature environmental chambers and time-resolved PDF and spectroscopy will be included in the program. Progress in data analysis and the use of simulations to interpret observations along with the use of multiple, complimentary techniques will be emphasized.


StartsEndsList of Speakers
12:30 PM12:35 PM Opening Remarks, Organizers
Welcome and Purpose of Workshop
12:35 PM1:05 PM Boris Khaykovich, Massachusetts Institute of Technology
Determination of Molecular Structure and Dynamics of Molten Salts by Advanced Neutron and X-ray Scattering Measurements and Computer Modeling
1:05 PM1:35 PM Christopher Benmore, Argonne National Laboratory
High Energy X-ray Diffraction from Liquids at Extreme Conditions
1:35 PM2:05 PM Wilson Chiu, University of Connecticut
Measuring the Property of Molten Salts at Operationally Relevant Temperatures
2:05 PM2:35 PM Gerald Seidler, University of Washington
Practical Considerations and New Opportunities for X-ray Absorption Spectroscopy of Actinides and Other Elements in Molten Salts
2:35 PM3:05 PM Simerjeet Gill, Brookhaven National Laboratory
X-ray Absorption Studies to Investigate Speciation of Metals in Molten Salt Systems
3:05 PM3:25 PM Coffee Break, (provided)
Group Photo
3:25 PM3:55 PM Mathieu Doucet, Oak Ridge National Laboratory
Neutron Reflectometry of Molten Salts
3:55 PM4:25 PM Lingfeng He, Idaho National Laboratory
TEM Characterization of Materials in Molten Salt Corrosion Environments from Simple to Complex Systems
4:25 PM4:55 PM Apurva Mehta, SLAC National Accelerator Laboratory
Towards a Molecular-scale Understanding of Corrosion of Haynes 230 Alloy by Molten Chloride Salts
4:55 PM5:25 PM Karen Chen-Wiegart, Stony Brook University / BNL
Visualizing 3D Morphological Evolution of Ni and Ni Alloys Induced by Molten Salt with X-ray Nano-tomography
5:25 PM5:55 PM Dev Chidambaram, University of Nevada, Reno
Characterization of Corrosion Films Formed in Molten Salts
6:00 PM6:00 PM Workshop Adjourns, Workshop Organizers