Abstract:Nagra is currently developing design concepts for canisters for the deep geological disposal of spent fuel and high-level waste. A feasibility evaluation study was done to assess a number of candidate canister designs and materials. The potential canister options were assessed with regard to longterm safety by considering mechanical integrity, environmental damage and potential impact on the geological barrier. Manufacturing feasibility, sealing, inspection as well as potential cost were also assessed. A canis… Show more
“…The steady-state corrosion rates correspond to reference values currently used for modelling the gas generation in deep geological repositories (Diomidis, 2014;Diomidis et al, 2016;Poller et al, 2016). MIRAM 14 databases also include a compilation of the surface areas of the various metallic wastes (Nagra, 2014).…”
Section: Corrosion Of Metalsmentioning
confidence: 57%
“…Brass is a CuZn alloy, and for modelling purposes, a Cu:Zn 1:1 stoichiometry (molar ratio) was assumed. All metals except copper were considered to be susceptible to anoxic corrosion, while no corrosion rates were available for copper (Diomidis, 2014). Hence, copper was considered to be subject to instantaneous reaction.…”
“…The steady-state corrosion rates correspond to reference values currently used for modelling the gas generation in deep geological repositories (Diomidis, 2014;Diomidis et al, 2016;Poller et al, 2016). MIRAM 14 databases also include a compilation of the surface areas of the various metallic wastes (Nagra, 2014).…”
Section: Corrosion Of Metalsmentioning
confidence: 57%
“…Brass is a CuZn alloy, and for modelling purposes, a Cu:Zn 1:1 stoichiometry (molar ratio) was assumed. All metals except copper were considered to be susceptible to anoxic corrosion, while no corrosion rates were available for copper (Diomidis, 2014). Hence, copper was considered to be subject to instantaneous reaction.…”
“…The selection of copper as the metal matrix has distinct advantages for this particular application. Copper is an excellent material for long-term storage or geologic disposition, as it is highly durable under reducing conditions (Diomidis et al, 2017).…”
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