The effect of fission spikes on fission gas re-solution
- 1 January 1973
- journal article
- research article
- Published by Taylor & Francis in Radiation Effects
- Vol. 17 (1), 57-64
- https://doi.org/10.1080/00337577308232598
Abstract
The atomic collision model of fission gas re-solution has been refined by calculating the temperature dependence of the re-solution parameter η. In this way it is shown that the atomic collision model is valid only at T ≳ 400°C whereas in oxide fuels at T ≲ 1000°C a new and more effective re-solution mechanism operates. As a new mechanism in oxide fuels the interaction of fission gas bubbles of diameters up to 500 Å with the hydrostatic pressure component of the thermoelastic stress field of fission spikes is proposed and its efficiency in the temperature range 200°C ≲ T ≲ 2200°C is discussed qualitatively. In contrast to oxides this mechanism is absent in carbide and nitride fuels and hence practically negligible fission gas re-solution should exist in these fuels at higher temperatures.Keywords
This publication has 8 references indexed in Scilit:
- Calculations on the in-pile behavior of fission gas in oxide fuelsJournal of Nuclear Materials, 1972
- Properties of fission spikes in UO2 and UC due to electronic stopping powerPhysica Status Solidi (a), 1972
- The re-solution of fission-gas atoms from bubbles during the irradiation of UO2 at an elevated temperatureJournal of Nuclear Materials, 1971
- An electron microscope examination of matrix fission-gas bubbles in irradiated uranium dioxideJournal of Nuclear Materials, 1971
- The re-solution of gas atoms from bubbles during the irradiation of UO2Journal of Nuclear Materials, 1970
- The stability of gas bubbles in an irradiation environmentJournal of Nuclear Materials, 1969
- Transmission electron microscopy of irradiated U02 fuel pelletsJournal of Nuclear Materials, 1968
- Electron Microscope Observation of the Fission-Gas Bubble Distribution in UO2Nuclear Applications, 1966