H - Electricity – 01 – B
Patent
H - Electricity
01
B
H01B 12/06 (2006.01) H01B 13/00 (2006.01) H01L 39/12 (2006.01) H01L 39/24 (2006.01) H05K 9/00 (2006.01)
Patent
CA 2092595
ABSTRACT A superconducting film comprises 0.1-5% by weight of magnesium oxide wherein the superconducting film has a thickness in a range from 300 to 1,000 µm. A superconducting device for magnetic shielding comprises: a substrate: and a superconducting layer supported by the substrate, the superconducting layer including grains of a Bi-type superconducting oxide so that the superconducting layer has a critical temperature higher than -196 °C, the superconducting layer having a thickness in a range from 300 to 1,000 µm, the superconducting layer including 0.1-5% by weight of magnesium oxide, wherein the superconducting device has a laminated structure including the substrate and the superconducting layer. A process for producing a superconducting film comprises the steps of: firing a mixture of calcined powders of a superconducting oxide and 0.1-5% by weight of magnesium oxide powders at a temperature at which the superconducting oxide is partially melted.
Shimizu Hideki
Watanabe Shingo
Marks & Clerk
Ngk Insulators Ltd.
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