Revisiting thermodynamics and kinetic diffusivities of uranium–niobium with Bayesian uncertainty analysis

Autor: Andrei V. Ruban, Anjana Talapatra, Alexander Landa, Levente Vitos, Thien Duong, Graham King, Pejman Honarmandi, H. M. Volz, Saurabh Bajaj, Anna Llobet, Raymundo Arroyave, Robert E. Hackenberg, Alice I. Smith, Patrice E. A. Turchi

Publikováno v: Duong, TC; Hackenberg, RE; Landa, A; Honarmandi, P; Talapatra, A; Volz, HM; et al.(2016). Revisiting thermodynamics and kinetic diffusivities of uranium–niobium with Bayesian uncertainty analysis. Calphad: Computer Coupling of Phase Diagrams and Thermochemistry, 55, 219-230. doi: 10.1016/j.calphad.2016.09.006. Lawrence Berkeley National Laboratory: Retrieved from: http://www.escholarship.org/uc/item/9kt4s9b8

In this work, thermodynamic and kinetic diffusivities of uranium–niobium (U–Nb) are re-assessed by means of the CALPHAD (CALculation of PHAse Diagram) methodology. In order to improve the consistency and reliability of the assessments, first-prin

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3b267e6876e53d6486ca96e527f10b1e
https://doi.org/10.1016/j.calphad.2016.09.006

Kinetics of Lamellar Decomposition Reactions in U-Nb Alloys

Autor: H. M. Volz, Pallas A. Papin, A.M. Kelly, Tim J. Tucker, Robert E. Hackenberg, Kester D. Clarke, Robert T. Forsyth

Publikováno v: Solid State Phenomena. :555-560

Discontinuous precipitation (DP) and discontinuous coarsening (DC) reactions have been observed in numerous alloy systems [1]. DP has been observed in the U-Nb system [2, 3, 4, 5]. The U-Nb phase diagram (Fig. 1) exhibits a continuous γ-BCC solid so

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::2e1161d54918e61ab0547df1561cb683
https://doi.org/10.4028/www.scientific.net/ssp.172-174.555

Establishing reactor operations from uranium targets used for the production of plutonium

Autor: Dominic S. Peterson, Mark Scott, Lav Tandon, Christy E. Ruggiero, Diana L. Decker, R. A. Pereyra, Terry Hahn, David H. Beddingfield, Donivan R. Porterfield, Daniel S. Schwartz, Khalil J. Spencer, D. Gallimore, H. M. Volz, Rodney J. McCabe, Patrick T. Martinez, Amy Wong, S.E. Garner, Steven C. Myers, Laurie F. Walker, Russ Gritzo, Stephen P. LaMont, Kevin J. Kuhn, Lisa E Townsend, Joseph Banar

Publikováno v: Journal of Radioanalytical and Nuclear Chemistry. 282:573-579

This paper presents results from the examination of a number of archived neutron-irradiated uranium targets used for past plutonium production testing. Three of these targets were destructively characterized using Los Alamos National Laboratory actin

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::5134dfa8b545a60e5a9c01df6da918bc
https://doi.org/10.1007/s10967-009-0297-y

Nuclear, chemical, and physical characterization of nuclear materials

Autor: Laurie F. Walker, Rodney J. McCabe, David H. Beddingfield, Cris L. Lewis, Brian M. Patterson, S.E. Garner, D. Gallimore, S. L. Mecklenburg, J. R. FitzPatrick, R. Gritzo, J. Barnes, Amy Wong, S. Meyers, Christopher G. Worley, R. A. Pereyra, Velma M Montoya, Daniel S. Schwartz, D. Langner, George J. Havrilla, Mark Scott, Diana L. Decker, R. E. Steiner, E. P. Hastings, Lav Tandon, Vahid Majidi, Christy E. Ruggiero, David J. Mercer, Khalil J. Spencer, H. M. Volz, D. Rademacher, Stephen P. LaMont, T. Hahn, R. Villarreal, J. Banar, Kevin J. Kuhn, Patrick T. Martinez, J. Poths, Donivan R. Porterfield, J. Dyke, B. Johnson, D. Farr

Publikováno v: Journal of Radioanalytical and Nuclear Chemistry. 276:467-473

The goal of nuclear forensics is to establish an unambiguous link between illicitly trafficked nuclear material and its origin. The Los Alamos National Laboratory (LANL) Nuclear Materials Signatures Program has implemented a graded “conduct of oper

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::3d79b1f2ff8b933b9634748035e50cff
https://doi.org/10.1007/s10967-008-0528-7

Intrinsically localized vibrations and the mechanical properties of α-uranium

Autor: Harald Sinn, Ahmet Alatas, Jason C. Lashley, H. M. Volz, W. L. Hults, Dan J. Thoma, Michael Manley, G. H. Lander, J. L. Smith, Mohana Yethiraj

Publikováno v: Journal of Alloys and Compounds. :129-132

Recent experiments have indicated that the high-temperature properties of α-uranium may be strongly influenced by the formation of randomly distributed intrinsically localized vibrational modes, just a few atoms across in size. One observation was a

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c6ab175e968521c3160f2fa74f48e393
https://doi.org/10.1016/j.jallcom.2006.09.137