Superconductor structure with glass substrate and high-temperature superconductor deposited thereon, current limiter device having the superconductor structure and process for producing the structure
AssigneeSiemens Aktiengesellschaft
InventorRainer Nies
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Abstract
A superconductor structure inclludes a substrate made from a temperature-resistant glass material, a buffer layer which has been deposited on the substrate, and a layer of a metal oxide high Tc superconductor material that has been deposited thereon. A glass material with a coefficient of thermal expansion of over 6·10−6 K−1 and a transformation temperature of over 550° C. is to be provided. At least a deposition process in which a maximum temperature is at most 100 K higher than the transformation temperature of the glass material is selected for the production of the structure. A current limiter device is also provided.
Claims26
A superconductor structure, comprising a substrate, at least one buffer layer deposited on said substrate, and a layer of a metal oxide superconductor material with a high critical temperature deposited on said buffer layer, said substrate formed of a flat glass material sufficiently temperature-resistant to withstand a maximum temperature during production of said buffer layer and said superconductor layer, and said glass material having a coefficient of thermal expansion greater than 6×10−6 K−1 and a transformation temperature of over 550° C.
A superconductor structure, comprising a substrate, at least one buffer layer deposited on said substrate, and a layer of a metal oxide superconductor material with a high critical temperature deposited on said buffer layer, said substrate formed of an aluminosilicate glass sufficiently temperature-resistant to withstand a maximum temperature during production of said buffer layer and said superconductor layer, and said glass containing 50 to 70% by weight SiO2 and 10 to 30% by weight Al2O3, and having a coefficient of thermal expansion greater than 6×10−6 K−1 and a transformation temperature of over 550° C.
Dependencies are inferred from the claim text.