CANISTER FOR FINAL REPOSITORY OF SPENT NUCLEAR FUEL
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Abstract
The invention relates to a canister (1) for final repository of spent fuel elements from a nuclear reactor, comprising an insert (2) that contains said spent fuel elements, an inner copper casing (4a, 4b, 4c) that encloses the insert (2), and at least one outer casing (5a, 5b, 5c) that encloses the copper casting and that consists of a passive-film-forming metal or metal alloy, the passive film on the casing being constituted by an essentially oxidic film that is rich in one or more of the metals in the group of metals that consist of the metals zirconium, chromium and titanium.
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Citations
39 Claims
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1-17. -17. (canceled)
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18. A canister for final repository of spent fuel elements from a nuclear reactor comprising:
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an insert that contains said spent fuel elements; an inner copper casing that encloses said insert; and at least one outer casing that encloses said copper casing and that comprises a passive-film-forming metal or metal alloy, the passive film on the casing comprising an essentially oxidic film that is rich in one or more of the metals in the group of metals consisting of the metals zirconium, chromium and titanium. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38)
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39. A canister for final repository of spent fuel elements from a nuclear reactor comprising:
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an insert constructed and arranged for containing spent fuel elements; an inner copper casing enclosing said insert; and at least one outer casing enclosing said copper casing, the outer casing being formed from at least one passive-film-forming metal or metal alloy selected from the group consisting of zirconium, chromium and titanium.
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Specification