Thin uranium dioxide films with embedded xenon

Usov, I.O.; Dickerson, Robert M.; Dickerson, P.; Hawley, M. E.; Byler, Darrin D.; McClellan, K. J.

doi:10.1016/j.jnucmat.2013.01.304

Cited by 3 publications

(2 citation statements)

References 21 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Future irradiation to cause displacements in the uranium sublattice using heavier particles Xe for example 26,30,31 , to simulate what happens in actual irradiated fuels due to the fission recoil damage might show interesting changes to the phonon spectra.…”

Section: A Extent Of Radiation Damagementioning

confidence: 99%

Study of phonons in irradiated epitaxial thin films of UO2

et al. 2018

View full text Add to dashboard Cite

We report experiments to determine the effect of radiation damage on the phonon spectra of the most common nuclear fuel, UO2. We have irradiated thin (∼ 300 nm) epitaxial films of UO2 with 2.1 MeV He 2+ ions to 0.15 dpa and a lattice swelling of ∆a/a ∼ 0.6 %, and then used grazingincidence inelastic X-ray scattering to measure the phonon spectrum. We succeeded to observe the acoustic modes, both transverse and longitudinal, across the Brillouin zone. The phonon energies, in both the pristine and irradiated samples, are unchanged from those observed in bulk material. On the other hand, the phonon linewidths (inversely proportional to the phonon lifetimes), show a significant broadening when comparing the pristine and irradiated samples. This effect is shown to increase with phonon energy across the Brillouin zone. The decreases in the phonon lifetimes of the acoustic modes are roughly consistent with a 50% reduction in the thermal conductivity.

show abstract

Section: A Extent Of Radiation Damagementioning

confidence: 99%

Study of phonons in irradiated epitaxial thin films of UO2

et al. 2018

View full text Add to dashboard Cite

show abstract

“…A variety of studies using d-UO2 as a UO2 surrogate exist spanning a wide range of topics, only a few of which are referenced here for brevity. These include synthesis of thin UO2 films from electron beam evaporation of UO2 pellets, mechanical properties of nuclear fuel surrogates using picosecond laser ultrasonics, characterization of minor actinide MOX fuel, microstructural evolution of simulated high burn-up structures, synthesis and sintering of nitride-oxide composites, and Raman spectroscopy for corrosion product identification on UO2 [15,[50][51][52][53][54].…”

Section: Depleted Uranium Oxide (D-uo2) As a Surrogate For Uo2mentioning

confidence: 99%

Report on technical activities and technical plan for university advanced manufacturing work for in-pile sensors

McMurtrey

Ilevbare

Rooyen

2017

View full text Add to dashboard Cite

The In-Pile Initiative is working to develop and deploy novel instrumentation that may be used to characterize and monitor the behavior of fuels and materials within a nuclear reactor core during operation. The extreme conditions (temperature, environment, irradiation, etc.) make measurements difficult, which has resulted in typical characterizations being performed post-irradiation. This initiative has been divided into a number of work packages, with the focus of this work package being the development of advanced manufacturing techniques to support to novel sensor designs of the other work packages. This work is being performed at Idaho National Laboratory in collaboration with groups at both the University of Notre Dame and Boise State University. This report details the technical plans for the university work to address the goals of this work package. To accelerate sensor research and development for in-pile measurements, the University of Notre Dame will focus on the development of an advanced additive manufacturing method, direct ink writing (DIW), to fabricate sensors of various designs and functions (including sensors with multiple functions). Their work is divided into two main objectives: 1) The development of direct-ink writing additive manufacturing equipment, process monitoring and control, and 2) the development of new materials processing and characterization methodologies for additive manufacturing. In the second objective, the work at the University of Notre Dame will be supporting the work of Boise State University as they develop new inks for printing sensors. The work being performed at Boise State University is divided into four objectives: 1) Nuclear grade nanoparticle ink synthesis, 2) advanced manufacturing process control through computer simulation, 3) prototypical surrogate sample development (to simulate fuel) for advanced manufacturing and 4) advanced manufacturing process qualification for the direct write inks. The modelling and simulation work in objective 2 will support the process sensing and control work being performed at the University of Notre Dame.

show abstract

Uranium dioxide films with xenon filled bubbles for fission gas behavior studies

Usov

Dickerson

et al. 2014

Journal of Nuclear Materials

View full text Add to dashboard Cite

Thin uranium dioxide films with embedded xenon

Cited by 3 publications

References 21 publications

Study of phonons in irradiated epitaxial thin films of UO2

Study of phonons in irradiated epitaxial thin films of UO2

Report on technical activities and technical plan for university advanced manufacturing work for in-pile sensors

Uranium dioxide films with xenon filled bubbles for fission gas behavior studies

Contact Info

Product

Resources

About