27 September 2010 to 1 October 2010
CSIR Convention Centre
Africa/Johannesburg timezone

Diffusion of fission products through silicon carbide

Not scheduled
CSIR Convention Centre

CSIR Convention Centre

CSIR, Pretoria
Presentation Track A - Condensed Matter Physics and Material Science


Prof. Erich Friedland (University of Pretoria)


Fuel elements of modern high-temperature nuclear reactors are encapsulated by CVD-layers of pyrolitic carbon and silicon carbide to reduce fission product release. The aim of this study is to obtain information on volume and grain boundary diffusion as well as on the influence of radiation damage. For this purpose relevant isotopes were implanted in poly and single crystalline SiC samples at temperatures ranging from room temperature to 900 K. Diffusion coefficients were obtained from the broadening of the implantation profiles after isochronal and isothermal annealing studies up to 1900 K, using RBS analysis and electron microscopy.

Primary author

Prof. Erich Friedland (University of Pretoria)


Prof. Johan Malherbe (University of Pretoria) Dr Nic van der Berg (University of Pretoria)

Presentation Materials

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