US4537642A
Expired / Lapsed
US
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Method of manufacturing Al-stabilized superconductor
Assignee: Sumitomo Electric Industries Ltd
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Filing: 1984-01-18
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Granted: 1985-08-27
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Expires: 2004-01-18
Abstract
Abstract A method of manufacturing an Al-stabilized superconductor is disclosed. The method comprises combining into a composite a thin elongated Al member and a superconductive wire. The Al member is preferably comprised of high purity Al having a purity of not less than 99.9% and the superconductive wire is comprised of copper or a copper alloy matrix. The method produces a composite with strong adhesion between the Al member and the superconductive wire even under adverse conditions. Further, the method can be easily and quickly carried out.
Inventors
- 👤 Shigeo Saito
- 👤 Masayuki Nagata
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 02:47
CPC Classifications
H; H10; H10N; H10N60/00; H10N60/01; H10N60/0128; Y; Y10; Y10S; Y10S505/00; Y10S505/80; Y10S505/801; Y10S505/805; Y10S505/806; Y10S505/815; Y10S505/825; Y10S505/917; Y10S505/928; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49014
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
38 words
A method of manufacturing an Al-stabilized superconductor, comprising combining into a composite an Al tape or ribbon and a superconductive wire comprised of a material selected from the group consisting of Cu and Cu alloy matrix by rolling.
Claim 2
Independent Claim
38 words
A method of manufacturing an Al-stabilized superconductor, comprising combining into a composite an Al tape or ribbon and a superconductive wire comprised of a material selected from the group consisting of Cu and Cu alloy matrix by rolling.
Claim 3
Dependent Claim
24 words
A method as claimed in claim 1, wherein the superconductive wire is heated for rolling at a temperature of not more than 500° C.
Claim 4
Dependent Claim
25 words
A method as claimed in claim 1, wherein the aluminum tape or ribbon is comprised of aluminum of high purity of not less than 99.9%.
Claim 5
Dependent Claim
21 words
A method as claimed in claim 1, wherein the superconductive wire is a multi-core superconductive wire formed of extremely fine cores.
Claim 6
Dependent Claim
27 words
A method as claimed in claim 4, wherein the fine cores are comprised of a material selected from the group consisting of Cu/Nb-Ti and Cu/Nb 3 Sn.
Claim 7
Dependent Claim
25 words
A method of manufacturing as claimed in claim 1, wherein the Al tape or ribbon includes a groove in which the superconductive wire is placed.
Claim 8
Dependent Claim
34 words
A method of manufacturing as claimed in claim 1, further comprising the steps of subjecting the Al tape or ribbon and the superconductive wire to degreasing and abrasion treatment prior to contacting each other.
Claim 9
Dependent Claim
12 words
An Al-stabilized superconductor produced by a method as claimed in claim 1.
References Cited (Backward Citations)
US4148129A
Cited
US4242536A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-08-26 | 1989-02-25 | 1989-08-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-08-26 | 1993-02-25 | 1993-08-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-08-26 | 1997-02-25 | 1997-08-27 | $7700.00 | Window Closed / Lapsed |