Rare Earth Oxide (REO) Enhanced High-voltage Cathode for Solid-state Li-ion Batteries (SSLiBs)
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36 MATERIALS SCIENCE↗
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Results for “RARE EARTH”
Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.
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Robust Split Laser Spectroscopic Sensor for In-situ Characterization of Rare Earth Elements and Critical Minerals in Mining Deposits
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36 MATERIALS SCIENCE↗
Size Selective Ligand Tug of War Strategy to Separate Rare Earth Elements
Not Available
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CH↗
Green Approach for Rare Earth Element (REE) Recovery from Coal Fly Ash
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54 ENVIRONMENTAL SCIENCES↗
Advancing Rare-Earth Separation by Machine Learning
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37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CH↗
Supercritical Recovery of Rare Earth Elements from Phosphate Mining Waste
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37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CH↗
Rare Earth Free Motor Designs using MnBi
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24 POWER TRANSMISSION AND DISTRIBUTION↗
Organic Ligand-Mediated Dissolution and Fractionation of Rare-Earth Elements (REEs) from Carbonate and Phosphate Minerals
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37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CH↗
Rare Earth Elements Recovery and Waste Management of Municipal Solid Waste Incineration Ash
Not Available
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CH↗
X-ray Spectroscopy of a Rare-Earth Molecular System Measured at the Single Atom Limit at Room Temperature
Not Available
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CH↗
Determination of Rare Earth Element Isotopic Compositions Using Sample-Standard Bracketing and Double-Spike Approaches
Not Available
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CH↗
Flux Switching Permanent Magnet Motor with Metal Amorphous Nanocomposite Soft Magnetic Material and Rare Earth Free Permanent Magnets
The power losses in high power-density motors due to high rotational speed and/or high pole counts may be reduced adopting metal amorphous nanocomposites (MANCs) featuring low power loss and a relatively high flux density (~1.3 T). We recently proposed a flux switching permanent magnet (FSPM) motor with a rating of 2.5 kW at 1400 Hz electrical speed by incorporating low loss (< 3 W/kg at 1 kHz) FeNi-based MANC material with projected iron loss of about 5 W. The motor design allows use of rare earth-free permanent magnets. For incorporation of MANC materials, an axial flux motor where the rotor and stator core are made from a wound ribbon core has been developed. We have performed a 3-d FEA to optimize the design and built and tested a prototype demonstrating that the low loss MANC material can be used for motor applications.
33 ADVANCED PROPULSION SYSTEMS↗
The Energy and Cost-efficient E-waste recovery project for rare-earths and precious metals (E-RECOV)
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36 MATERIALS SCIENCE↗
Supplementary data for Technical Report: Towards A Geo-Data Science Method for Assessing Rare-Earth Element Occurrences in Coal and Other Sedimentary Systems
Supplementary data includes two appendices: -Appendix A: Bibliography of references that helped inform development of the REE-SED assessment method. -Appendix B: Sample data template.
Coal↗
Materials and Platforms for the Optical Detection of Rare Earth Elements
Poster describing sensing materials and platforms for detection economically critical metals from unconventional sources such as acid mine drainage.
photoluminescence↗
Coherent Control of a Nuclear Spin via Interactions with a Rare-Earth Ion in the Solid State
Not Available
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSIC↗
Synergistic extraction of rare earth elements, actinium, americium, and barium with TTA and Pb resin from acetate buffer solutions
The uptake behavior of 88 Y, 140 Ba, 140 La, 141 Ce, 152 Eu, 228 Ac, and 241 Am was studied with batch uptake, kinetics and column studies in a synergistic extraction system with Pb resin and 2-thenoyltrifuoroacetone in acetate-ethanol solutions. The k' values are very high (>10,000) at near neutral pH (~5 to 6) for all of the radioisotopes studied. The kinetics are reasonably fast for column separations, though the uptake rate is dependent on the concentration of 2-thenoyltrifuoroacetone. Column studies were performed to demonstrate the separation of the trivalent actinides and lanthanides from barium and common fssion products ( 99 Mo, 103 Ru).
38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEA↗
Concentrating rare earth elements to phosphate in molten coal ash by a temperature gradient approach
Synthetic coal ash bearing 560 ppm europium oxide, blended with aluminum phosphate, was heat treated above its melting temperature and crystal evolutions with respect to europium concentration under controlled cooling were studied. The sample in a boat crucible was subjected to a temperature gradient of 100 °C across it to cause zone refining effects on crystallization behaviors in the melt (slag). Post analysis found six mineral phases formed from the melt while europium was only present in calcium phosphate, implying the majority of europium was segregated to the calcium phosphate. Europium concentrations in the calcium phosphate phase tended to be higher at zones with higher temperatures: as high as 7200 ppm, a 13-fold increase from the initial concentration.
01 COAL, LIGNITE, AND PEAT↗