US3556842A
Expired / Lapsed
US
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Method of producing layers if intermetallic superconducting niobium-tin (nb3sn) on a carrier
Assignee: Siemens AG
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Filing: 1968-03-15
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Granted: 1971-01-19
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Expires: 1988-03-15
Abstract
Abstract DESCRIBED IS A METHOD OF PRODUCING LAYERS FROM THE INTERMETALLIC SUPERCONDUCING NIOBIUM-TIN (NB3SN) UPON A CARRIER COMPRISED OF HIGHLY REFRACTORY METAL OR OF A HIGHLY REFRACTORY METAL ALLOY, BY REDUCING THE HALIDES OF NIOBIUM AND TIN, BY HYDROGEN UPON THE HEATED CARRIER. THE PROCESS IS CHARACTERIZED BY FIRST BRINGING A GASEOUS NIOBIUM CHLORIDE OR BROMIDE AND HYDROGEN INTO CONTACT WITH A HEATED CARRIER THERBY PRECIPITATING, UPON SAID CARRIER, A NIOBIUM LAYER THROUGH A REDUCTION OF THE NIOBIUM CHLORIDE OR NIOBIUM BROMIDE AND THEREAFTER, PRECIPITATING A NIOBIUM-TIN LAYER UPON SAID NIOBIUM LAYER.
Inventors
- 👤 Kyong-Min Kim
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 12:55
CPC Classifications
C; C23; C23C; C23C16/00; C23C16/06; C23C16/08; C23C16/12; H; H10; H10N; H10N60/00; H10N60/01; H10N60/0184; Y; Y10; Y10S; Y10S505/00; Y10S505/80; Y10S505/815; Y10S505/818; Y10S505/819
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-01-18 | 1974-07-20 | 1975-01-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-18 | 1978-07-20 | 1979-01-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-18 | 1982-07-20 | 1983-01-19 | $7700.00 | Window Closed / Lapsed |