Oxide-type superconducting material
AssigneeSumitomo Electric Industries, Ltd.
InventorYasuko Torii
Life of this patent
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Abstract
A new superconducting material composed mainly of compound oxide represented by the general formula: Tl.sub.h Ca.sub.j .alpha..sub.k(1-y) .beta..sub.ky Cu.sub.m O.sub.n wherein ".alpha." represents Ba or Sr; ".beta." represents any one of elements selected from a group comprising Na, K, Rb and Cs; "h", "j", "k", "m" and "n" are the atomic ratios each satisfies the following range: 1.ltoreq.h.ltoreq.3, 1.ltoreq.j.ltoreq.3, 1.ltoreq.k.ltoreq.3, 2.ltoreq.m.ltoreq.4 and 5.ltoreq.n.ltoreq.15 and "y" is a number which satisfies a range of 0.05.ltoreq.y.ltoreq.0.8.
Claims3
A superconducting material principally comprising a compound oxide represented by the general formula:
- Tl.sub.h(1-p-q) Bi.sub.hp Pb.sub.hq Ca.sub.j .alpha..sub.k(1-y) Cs.sub.ky Cu.sub.m O.sub.n
- wherein
- ".alpha." represents Ba or Sr;
- and
- "h", "j", "k", "m" and "n" are the atomic ratios satisfying the following ranges:
- 1.ltoreq.h.ltoreq.3, 1.ltoreq.j.ltoreq.3, 1.ltoreq.k.ltoreq.3,
- 2.ltoreq.m.ltoreq.4 and 5.ltoreq.n.ltoreq.15 and
- "y" is a number satisfying 0.05.ltoreq.y.ltoreq.0.8, and "p" and "q" are numbers satisfying 0<p<0.5 and 0.ltoreq.q<0.5.
A superconducting material principally comprising a compound oxide represented by the general formula:
- Tl.sub.h Ca.sub.j .alpha..sub.k(1-y) Cs.sub.ky Cu.sub.m O.sub.n
- wherein
- ".alpha." represents Ba or Sr;
- and
- "h", "j", "k", "m" and "n" are the atomic ratios each satisfies the following range:
- 1.ltoreq.h.ltoreq.3, 1.ltoreq.j.ltoreq.3, 1.ltoreq.k.ltoreq.3,
- 2.ltoreq.m.ltoreq.4 and 5.ltoreq.n.ltoreq.15 and
- "y" is a number satisfying the range of 0.05.ltoreq.y.ltoreq.0.8.
Dependencies are inferred from the claim text.