Gas-bubble growth mechanisms in the analysis of metal fuel swelling [electronic resource].
- Published
- Argonne, Ill. : Argonne National Laboratory, 1986.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy. - Physical Description
- Pages: 21 : digital, PDF file
- Additional Creators
- Argonne National Laboratory and United States. Department of Energy. Office of Scientific and Technical Information
Access Online
- Restrictions on Access
- Free-to-read Unrestricted online access
- Summary
- During steady-state irradiation, swelling rates associated with growth of fission-gas bubbles in metallic fast reactor fuels may be expected to remain small. As a consequence, bubble-growth mechanisms are not a major consideration in modeling the steady-state fuel behavior, and it is usually adequate to consider the gas pressure to be in equilibrium with the external pressure and surface tension restraint. On transient time scales, however, various bubble-growth mechanisms become important components of the swelling rate. These mechanisms include growth by diffusion, for bubbles within grains and on grain boundaries; dislocation nucleation at the bubble surface, or ''punchout''; and bubble growth by creep. Analyses of these mechanisms are presented and applied to provide information on the conditions and the relative time scales for which the various processes should dominate fuel swelling. The results are compared to a series of experiments in which the swelling of irradiated metal fuel was determined after annealing at various temperatures and pressures. The diffusive growth of bubbles on grain boundaries is concluded to be dominant in these experiments.
- Report Numbers
- E 1.99:conf-860605-2
conf-860605-2 - Subject(s)
- Other Subject(s)
- Alloy Nuclear Fuels
- Physical Radiation Effects
- Swelling
- Lmfbr Type Reactors
- Uranium Alloys
- Bubble Growth
- Creep
- Diffusion
- Dislocations
- Fission Products
- Transients
- Actinide Alloys
- Alloys
- Breeder Reactors
- Crystal Defects
- Crystal Structure
- Energy Sources
- Epithermal Reactors
- Fast Reactors
- Fbr Type Reactors
- Fuels
- Isotopes
- Line Defects
- Liquid Metal Cooled Reactors
- Materials
- Mechanical Properties
- Nuclear Fuels
- Radiation Effects
- Radioactive Materials
- Reactor Materials
- Reactors
- Solid Fuels
- Note
- Published through SciTech Connect.
06/01/1986.
"conf-860605-2"
"DE86005512"
13. international symposium on the effects of radiation on materials, Seattle, WA, USA, 23 Jun 1986.
Kramer, J.M.; Gruber, E.E. - Funding Information
- W-31-109-ENG-38
View MARC record | catkey: 14462573