Search Results - "Sweet, Lucas E"

Structure and Bonding Investigation of Plutonium Peroxocarbonate Complexes Using Cerium Surrogates and Electronic Structure Modeling by Sweet, Lucas E, Corbey, Jordan F, Gendron, Frédéric, Autschbach, Jochen, McNamara, Bruce K, Ziegelgruber, Kate L, Arrigo, Leah M, Peper, Shane M, Schwantes, Jon M

“…Herein, we report the synthesis and structural characterization of K8[(CO3)3Pu]2(μ-η2-η2-O2)2·12H2O. This is the second Pu-containing addition to the…”
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Delayed onset of discontinuous precipitation-based phase transformation in U10Mo alloys doped with Silicon by Song, Miao, Jana, Saumyadeep, Huber, Zach, Sweet, Lucas E., Lavender, Curt, Joshi, Vineet V.

“…A uranium-10 wt% molybdenum (U10Mo) alloy is one of the primary candidates for metallic fuels that would use low-enriched uranium in place of highly enriched…”
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Neodymium(III) Complexes of Dialkylphosphoric and Dialkylphosphonic Acids Relevant to Liquid–Liquid Extraction Systems by Lumetta, Gregg J, Sinkov, Sergey I, Krause, Jeanette A, Sweet, Lucas E

“…The complexes formed during the extraction of neodymium­(III) into hydrophobic solvents containing acidic organophosphorus extractants were probed by…”
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Quantitative morphological characterization of carbide inclusions in uranium metal by Athon, Matthew T., Reilly, Dallas D., Schwerdt, Ian J., Corbey, Jordan F., Olszta, Matthew J., Sweet, Lucas E.

“…•First study quantifying morphological features of uranium carbide inclusions in uranium metal as a function of cooling rate from the melt.•Uranium carbide…”
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Extraction of plutonium‐containing microcrystals from Hanford soil using a focused ion beam for single‐crystal X‐ray diffraction analysis by Corbey, Jordan F., Reilly, Dallas D., Sweet, Lucas E., Lach, Timothy G.

“…Herein, the successful use of a focused ion beam/scanning electron microscope to prepare microsamples of radioactive single crystals for X‐ray diffraction…”
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Quantitative Microstructural Characterization of Plutonium Oxalate Auto‐Degradation and Evidence for PuO2 Nanocrystal Formation by Corbey, Jordan F., Sweet, Lucas E., Sinkov, Sergey I., Reilly, Dallas D., Parker, Cyrena M., Lonergan, Jason M., Johnson, Timothy J.

“…It has been known since the 1950s that plutonium oxalate powders change color and lose mass over time when stored at room temperature in air. Despite several…”
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Multifunctional Two-Dimensional Metal–Organic Frameworks for Radionuclide Sequestration and Detection by Surbella, Robert G, Reilly, Dallas D, Sinnwell, Michael A, McNamara, Bruce K, Sweet, Lucas E, Schwantes, Jon M, Thallapally, Praveen K

“…Two lanthanide-containing porous coordination polymers, [Ln2(bpdc)6(phen)2]·nH2O (1) and [Ln2(bpdc)6(terpy)2]·3H2O (2) (Ln = Pr, Nd, or Sm–Dy; bpdc:…”
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Identification of Uranium Minerals in Natural U-Bearing Rocks Using Infrared Reflectance Spectroscopy by Beiswenger, Toya N., Gallagher, Neal B., Myers, Tanya L., Szecsody, James E., Tonkyn, Russell G., Su, Yin-Fong, Sweet, Lucas E., Lewallen, Tricia A., Johnson, Timothy J.

“…The identification of minerals, including uranium-bearing species, is often a labor-intensive process using X-ray diffraction (XRD), fluorescence, or other…”
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Time-Resolved Infrared Reflectance Studies of the Dehydration-Induced Transformation of Uranyl Nitrate Hexahydrate to the Trihydrate Form by Johnson, Timothy J, Sweet, Lucas E, Meier, David E, Mausolf, Edward J, Kim, Eunja, Weck, Philippe F, Buck, Edgar C, McNamara, Bruce K

“…Uranyl nitrate is a key species in the nuclear fuel cycle. However, this species is known to exist in different states of hydration, including the hexahydrate…”
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X‐ray diffraction, differential scanning calorimetry and evolved gas analysis of aged plutonium tetrafluoride (PuF4) by Wayne, David M., Stritzinger, Jared T., Casella, Amanda J., Sweet, Lucas E., Corbey, Jordan F., Garcia, Daniel J., Wylie, E. Miller, Tandon, Lav, Olson, Angela C., Rim, Jung Ho

“…A 30 year-old PuF 4 sample consisting of brown powder (PuF 4 -b) and pink granules (PuF 4 -p) was analyzed. X-ray diffraction shows the bulk is comprised of…”
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Characterization of surface layers formed on DU10Mo ingots after processing steps and high humidity exposure by Kaspar, Tiffany C., Arendt, Christina L., Neal, Derek L., Riechers, Shawn L., Rutherford, Crystal, Schemer-Kohrn, Alan, Spurgeon, Steven R., Sweet, Lucas E., Joshi, Vineet V., Lavender, Curt A., Shimskey, Rick W.

“…The design of monolithic UMo fuel elements fabricated from low-enriched uranium for use in high-power research reactors requires bonding of the fuel foil to…”
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Real-time noise reduction for Mössbauer spectroscopy through online implementation of a modified Kalman filter by Abrecht, David G., Schwantes, Jon M., Kukkadapu, Ravi K., McDonald, Benjamin S., Eiden, Gregory C., Sweet, Lucas E.

“…Spectrum-processing software that incorporates a Gaussian smoothing kernel within the statistics of first-order Kalman filtration has been developed to provide…”
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Investigation of the polymorphs and hydrolysis of uranium trioxide by Sweet, Lucas E., Blake, Thomas A., Henager, Charles H., Hu, Shenyang, Johnson, Timothy J., Meier, David E., Peper, Shane M., Schwantes, Jon M.

“…This work focuses on the polymorphic nature of the UO 3 and UO 3 –H 2 O system, which are important materials associated with the nuclear fuel cycle. The UO 3…”
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Ferromagnetic Coupling in Hexanuclear Gadolinium Clusters by Sweet, Lucas E, Roy, Lindsay E, Meng, Fanqin, Hughbanks, Timothy

“…The magnetic susceptibilities of hexanuclear gadolinium clusters in the compounds Gd(Gd6ZI12) (Z = Co, Fe, or Mn) and CsGd(Gd6CoI12)2 are reported and…”
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Spontaneous redox continuum reveals sequestered technetium clusters and retarded mineral transformation of iron by Boglaienko, Daria, Soltis, Jennifer A., Kukkadapu, Ravi K., Du, Yingge, Sweet, Lucas E., Holfeltz, Vanessa E., Hall, Gabriel B., Buck, Edgar C., Segre, Carlo U., Emerson, Hilary P., Katsenovich, Yelena, Levitskaia, Tatiana G.

“…The sequestration of metal ions into the crystal structure of minerals is common in nature. To date, the incorporation of technetium(IV) into iron minerals has…”
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CsR(R6CoI12)2 (R = Gd, Er) and (CeI)0.26(Ce6MnI9)2:  Two New Structure Types Featuring R6Z Clusters by Sweet, Lucas E, Hughbanks, Timothy

“…Compounds adopting two new structure types containing discrete lanthanide clusters have been found, CsR(R6CoI12)2 (R = Gd or Er) and (CeI)0.26(Ce6MnI9)2…”
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Computational Modeling of ansa-Zirconocene Amide Complexes by Dunn, Adam R, Sweet, Lucas E, Wiser, Dawn C, LoCoco, Matthew D, Jordan, Richard F

“…The structures and relative energies of ansa-zirconocene bis-amide complexes were studied by DFT computations. X-ray crystal structures and experimental trends…”
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Quantitative Microstructural Characterization of Plutonium Oxalate Auto‐Degradation and Evidence for PuO 2 Nanocrystal Formation by Corbey, Jordan F., Sweet, Lucas E., Sinkov, Sergey I., Reilly, Dallas D., Parker, Cyrena M., Lonergan, Jason M., Johnson, Timothy J.

“…It has been known since the 1950s that plutonium oxalate powders change color and lose mass over time when stored at room temperature in air. Despite several…”
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Solubility controls on plutonium and americium release in subsurface environments exposed to acidic processing wastes by Emerson, Hilary P., Sinkov, Sergey I., Pearce, Carolyn I., Cantrell, Kirk J., Delegard, Calvin H., Snyder, Michelle M.V., Thomas, May-Lin, Reilly, Dallas D., Buck, Edgar C., Sweet, Lucas E., Casella, Amanda J., Carter, Jennifer C., Corbey, Jordan F., Schwerdt, Ian J., Clark, Richard, Heller, Forrest D., Meier, David, Zavarin, Mavrik, Kersting, Annie B., Freedman, Vicky L.

“…To identify the role of waste composition and sediment interactions in controlling Pu and Am mobility in contaminated sediments at Hanford, a legacy nuclear…”
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Discontinuous Precipitation in U-10 wt.%Mo Alloy: Reaction Kinetics, Effect of Prior γ-UMo Microstructure, the Role of Grain-Boundary Misorientation, and the Effect of Ternary Alloying Addition by Jana, Saumyadeep, Overman, Nicole, Devaraj, Arun, Sweet, Lucas, Lavender, Curt, Joshi, Vineet

“…Discontinuous precipitation (DP) plays a major role during eutectoid transformation in U-10 wt.%Mo (U10Mo) alloy. DP results in the formation of a lamellar…”
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