Published April 1982 | Version v1
Journal article

To the thermal conductivity and plasticity of UO2 with Gadolinium additions

  • 1. Kraftwerk Union A.G., Erlangen (Germany, F.R.)

Description

The thermal diffusivity and the thermal conductivity were measured for UO2-Gd2O3 with Gd2O3 <= 10 W/O in the temperature range 250C <= theta <= 5000C. An evaluation of the experimental data has shown, that the thermal conductivity is mainly influenced by microstructural changes in the mixed oxide structure due to Gd2O3-content. This result was also confirmed by detailed investigations of the structure of UO2-Gd2O3. Measurements of the stationary creep rate at theta = 15000C and 100 N/mm2 from UO2 and UO2-6,5 W/O Gd2O3 showed, that the plasticity of such fuel is scarcely influenced by the Gd2O3 content. (orig.)

Additional details

Additional titles

Original title (German)
Zur Waermeleitfaehigkeit und Plastizitaet von UO

Publishing Information

Journal Title
J. Nucl. Mater.
Journal Volume
106
Journal Issue
1-3
Series
J. Nucl. Mater.
Journal Page Range
221-230
ISSN
0022-3115

Conference

Title
2. meeting on characterization and quality control of nuclear fuels.
Dates
2 - 5 Jun 1981.
Place
Karlsruhe (Germany, F.R.).