Superconducting wire material and method for manufacturing superconducting wire material
AssigneeThe Fukukawa Electric Co., Ltd.
InventorsYoshikazu Okuno, Hiroyuki Fukushima, Eiji Kojima, Yuko Hayase
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Abstract
Impurities in an oxide superconducting layer or at a surface of the oxide superconducting layer at an intermediate layer side are reduced. A superconducting wire rod has a configuration that includes a metal substrate 10; an intermediate layer 20 formed on the metal substrate 10 and containing a rare-earth element that reacts with Ba; a reaction suppressing layer 28 formed on the intermediate layer 20 and mainly containing LaMnO3+δ1, wherein δ1 represents an amount of non-stoichiometric oxygen; and an oxide superconducting layer 30 formed on the reaction suppressing layer 28 and mainly containing an oxide superconductor containing Ba.
Claims19
A superconducting wire rod comprising:
- a metal substrate;
- an intermediate layer formed on the metal substrate and comprising a rare-earth element that reacts with Ba;
- a reaction suppressing layer formed on the intermediate layer and comprising LaMnO3+δ1, wherein δ1 represents an amount of non-stoichiometric oxygen;
- and
- an oxide superconducting layer formed on the reaction suppressing layer and comprising an oxide superconductor comprising Ba,
- wherein an outermost layer of the intermediate layer at an oxide superconducting layer side is a cap layer comprising CeO2, PrO2, or both.
A method for manufacturing a superconducting wire rod, the method comprising:
- forming, on a metal substrate, an intermediate layer comprising a rare-earth element that reacts with Ba;
- forming, on the intermediate layer, a reaction suppressing layer comprising LaMnO3+δ1, wherein δ1 represents an amount of non-stoichiometric oxygen;
- and
- forming, on the reaction suppressing layer, an oxide superconducting layer comprising Ba,
- wherein an outermost layer of the intermediate layer at an oxide superconducting layer side is a cap layer comprising CeO2, PrO2, or both.
Dependencies are inferred from the claim text.