Migration rate of lenticular voids in UO2 under the influence of temperature gradient

Autor: Hiromitsu Kaneko, M. Koizumi, H. Kawamata, H. Furuya
Rok vydání: 1977
Předmět:
Zdroj: Journal of Nuclear Materials. 68:48-53
ISSN: 0022-3115
DOI: 10.1016/0022-3115(77)90215-x
Popis: The migration rate of lenticular voids in uranium dioxide was measured in convection with an analysis of structural changes behavior in the irradiated fuel. The lenticular voids were fabricated in the interface of two thin discs of high density UO 2 by contacting and subsequently resintering the polished faces of the discs. The specimen was heated under the influence of a temperature gradient of 3000–5000°C/cm for 1–9 h, using an induction furnace. The migration rates were measured on the micrographs of the specimen after heating, and the results obtained showed good agreement with the theoretical values derived from Sens' model.
Databáze: OpenAIRE