Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5474879 | Annals of Nuclear Energy | 2017 | 12 Pages |
Abstract
A large-scale bundle experiment with silver-indium-cadmium absorber rod in the QUENCH facility as well as a series of small-scale single absorber rod tests with prototypical materials have been conducted. A variety of parameters like temperature history, initial contact between cladding and guide tube and possibility of inner oxidation of the guide tube was investigated in the single-rod tests. Different failure modes from local melt-through to explosive failure were observed depending on the sample type. No interaction between Ag-In-Cd melt and stainless steel was seen up to 1750Â K, near to the melting temperature of the steel. The cladding did not balloon before failure. Metallographic post-test analysis identified various phases formed during the high-temperature interactions between the involved materials. Furthermore, solidus and liquidus temperatures of the Ag-In-Cd alloy were determined accurately by DSC.
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Authors
M. Steinbrück, U. Stegmaier, M. Grosse,