Zobrazeno 1 - 10
of 38
pro vyhledávání: '"M. Lee Davisson"'
Autor:
Alex S. Ditter, Joseph I. Pacold, Zurong Dai, M. Lee Davisson, David Vine, Scott B. Donald, Brandon W. Chung, David K. Shuh
Publikováno v:
Journal of Vacuum Science & Technology A. 40
The oxidation of uranium dioxide is a complicated process, depending on factors including humidity, temperature, and microstructure. To further determine the characteristics of this process, UO2 particles were allowed to age and agglomerate under 98%
Publikováno v:
Rapid Communications in Mass Spectrometry. 33:89-96
Rationale Water vapor exposure experiments have applications for studying water physisorption and chemisorption hydration and hydroxylation reactions on a wide variety of material surfaces. The stable isotopes of hydrogen and oxygen in the water mole
Autor:
Erik J, Oerter, Michael, Singleton, Zurong, Dai, Scott, Donald, Melissa, Thaw, M Lee, Davisson
Publikováno v:
Talanta. 226
Hydrated secondary mineralization readily forms on the surface of UO
Publikováno v:
Geochimica et Cosmochimica Acta. 238:316-328
An attractive tracer of water-surface interactions in humidity exposure experiments are the stable hydrogen and oxygen isotopes in water vapor, though the conventional method of using salt saturated aqueous solutions to control humidity is likely to
Publikováno v:
Environmental Forensics. 19:99-111
While water sources that sustain many of the springs in the Mojave Desert have been poorly understood, the desert ecosystem can be highly dependent on such resources. This evaluation updates the wa...
Publikováno v:
Journal of Nuclear Materials. 502:68-75
Nuclear forensics involves determination of the origin and history of interdicted nuclear materials based on the detection of signatures associated with their production and trafficking. The surface oxidation undergone by UO2 when exposed to air is a
Publikováno v:
Journal of Nuclear Materials. 496:353-361
The reaction of water and molecular oxygen with stoichiometric uranium dioxide (i.e. UO2) powder at elevated temperature was studied by high-resolution x-ray photoelectron spectroscopy (XPS), infrared (IR) spectroscopy, powder x-ray diffraction (XRD)
Publikováno v:
Talanta. 226:122096
Hydrated secondary mineralization readily forms on the surface of UO2 particles exposed to humidity in an oxidizing environment. The oxygen stable isotope composition of the secondary uranium oxide may reflect that of the water vapor, as well as the
Publikováno v:
Journal of Nuclear Materials. 487:105-112
High resolution x-ray photoemission spectroscopy (XPS) was used to characterize the chemical speciation of high purity uranium dioxide (UO2) powder samples following aging for periods of up to one year under controlled conditions with relative humidi
Publikováno v:
MRS Advances. 1:2993-2997
High purity UO 2 powder samples were subjected to accelerated aging under controlled conditions with relative humidity ranging from 34% to 98%. Characterization of the chemical speciation of the products was accomplished using X-ray photoelectron spe