A5029054616- Molten salt chemistry and electrochemical processes
- Hydrogen embrittlement and corrosion behaviors in metals
- Machine Learning in Materials Science
- Inorganic Fluorides and Related Compounds
- Nuclear Materials and Properties
- Metallurgical Processes and Thermodynamics
- High Entropy Alloys Studies
- Chemical Synthesis and Characterization
- Superconducting Materials and Applications
- Solid-state spectroscopy and crystallography
- Thermal Expansion and Ionic Conductivity
- Electrochemical Analysis and Applications
- Additive Manufacturing Materials and Processes
- Advancements in Battery Materials
- Advanced Materials Characterization Techniques
- Catalytic Processes in Materials Science
- Nuclear Physics and Applications
- High-Temperature Coating Behaviors
University of Wisconsin–Madison
2018-2024
Insufficient availability of molten salt corrosion-resistant alloys severely limits the fruition a variety promising technologies that could otherwise have significant societal impacts. To accelerate alloy development for applications and develop fundamental understanding corrosion in these environments, here an integrated approach is presented using set high-throughput (HTP) synthesis, testing, modeling coupled with automated characterization machine learning. By this approach, broad range...
Corrosion sensing is essential to monitor and safeguard materials' health in molten salts. The present study developed a three-electrode-array minisensor for high-temperature salt corrosion monitoring. By using the sensor, impurity-driven of T91 by fission product, europium, LiCl-KCl eutectic has been studied. was validated be an ideal probe situ monitoring via comparisons on concentrations dissolved products detected this device inductively coupled plasma mass spectroscopy. To analyze large...
This article shows the elemental analysis of a batch FLiBe prepared from LiF and BeF2 purified by hydro-fluorination, see "Batch-Scale Hydrofluorination Li2BeF4 to Support Molten Salt Reactor Development" (Kelleher et al., 2015), which was performed method inductively-coupled plasma mass spectrometry (ICP-MS), with samples multi-acid microwave digestion without HF acid. Data quantification total sixty-five elements is reported for eight digested samples. Quantification 6Li/7Li isotopic ratio
Insufficient availability of molten salt corrosion-resistant alloys severely limits the fruition a variety promising technologies that could otherwise have significant societal impacts. To accelerate alloy development for applications and develop fundamental understanding corrosion in these environments, here we present an integrated approach using set high-throughput synthesis, testing, modeling coupled with automated characterization machine learning. By this approach, broad range...
This paper provides an overview of the study hydrogen chemistry and transport in molten LiF-BeF2 (FLiBe) at University Wisconsin - Madison. Hydrogen was introduced salt form LiH solid powders. Preliminary data shows oxidation peak after addition, attributed to H2 into HF. The reaction is studied by cyclic voltammetry (CV), linear sweep (LSV) chronoamperometry (CA) approximate diffusion coefficients FLiBe solution are calculated with LSV (2.3 x 10-5 cm2/s) CA (1.6 cm2/s).
Corrosion of alloys in molten salts is commonly understood from thermodynamics: the higher noble elements’ content alloy, more corrosion-resistant alloy expected to be. Here we present an example CrFeMnNi compositionally complex space that defy this conventional intuition.. Machine learning-facilitated analysis extensive data set reveals salt corrosion system primarily predicted by Ni mobility within alloy. This discovery was made possible using high-throughput manufacturing and testing a...
Fluoride-salt cooled High-temperature Reactors (FHR) use a 2LiF-BeF 2 salt mixture (FLiBe) as primary coolant for graphite pebble-bed-fueled core. Tritium management is challenge the design of FHR reactors: tritium produced through transmutation Lithium-6 in neutron environment. The amount about 1000 times larger than that current commercial pressurize water reactors and it can readily permeate heat exchanger walls due to its high diffusivity metals. Understanding transport properties from...
ASME Sec(III) Div(5) code-certified structural alloys for Molten (halide) Salt Reactors (MSRs) such as 800H, SS316, and IN617 have significant Cr content. This makes them readily-degradable in molten halide salts due to the thermodynamic favorability of soluble chromium formation. It is therefore imperative discover with corrosion resistance that exceeds those currently-certified alloys, which also possess necessary high hardness irradiation-resistance at reactor operating temperatures a...