FR2136690A5 - Niobium-aluminium-gallium superconductors - with high transition temp - Google Patents
Niobium-aluminium-gallium superconductors - with high transition tempInfo
- Publication number
- FR2136690A5 FR2136690A5 FR7214713A FR7214713A FR2136690A5 FR 2136690 A5 FR2136690 A5 FR 2136690A5 FR 7214713 A FR7214713 A FR 7214713A FR 7214713 A FR7214713 A FR 7214713A FR 2136690 A5 FR2136690 A5 FR 2136690A5
- Authority
- FR
- France
- Prior art keywords
- transition temp
- superconductors
- niobium
- gallium
- aluminium
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 230000007704 transition Effects 0.000 title abstract 3
- 239000002887 superconductor Substances 0.000 title abstract 2
- 229910052733 gallium Inorganic materials 0.000 title 1
- 230000002411 adverse Effects 0.000 abstract 1
- 238000000137 annealing Methods 0.000 abstract 1
- RKTYLMNFRDHKIL-UHFFFAOYSA-N copper;5,10,15,20-tetraphenylporphyrin-22,24-diide Chemical compound [Cu+2].C1=CC(C(=C2C=CC([N-]2)=C(C=2C=CC=CC=2)C=2C=CC(N=2)=C(C=2C=CC=CC=2)C2=CC=C3[N-]2)C=2C=CC=CC=2)=NC1=C3C1=CC=CC=C1 RKTYLMNFRDHKIL-UHFFFAOYSA-N 0.000 abstract 1
- 230000000694 effects Effects 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 abstract 1
- 229910052721 tungsten Inorganic materials 0.000 abstract 1
- 239000010937 tungsten Substances 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C27/00—Alloys based on rhenium or a refractory metal not mentioned in groups C22C14/00 or C22C16/00
- C22C27/02—Alloys based on vanadium, niobium, or tantalum
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N60/00—Superconducting devices
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N60/00—Superconducting devices
- H10N60/80—Constructional details
- H10N60/85—Superconducting active materials
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Compositions Of Oxide Ceramics (AREA)
- Crystals, And After-Treatments Of Crystals (AREA)
Abstract
A superconductor compsn. NbxAlyGe(1-y) where x is 1.9-2.8, pref. 2, and y is 0.5-0.9, pref. 0.8, has a transition temp. of >=19 degrees K and consists of the tetragonal sigma and beta tungsten phases. The material may be produced by annealing arc melted compsns. or cold pressing and heating at 1450-1800 degrees C. and may be cold worked without adverse effect on the transition temp.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US13749771A | 1971-04-26 | 1971-04-26 | |
| US13749871A | 1971-04-26 | 1971-04-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR2136690A5 true FR2136690A5 (en) | 1972-12-22 |
Family
ID=26835306
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7214713A Expired FR2136690A5 (en) | 1971-04-26 | 1972-04-25 | Niobium-aluminium-gallium superconductors - with high transition temp |
Country Status (7)
| Country | Link |
|---|---|
| JP (1) | JPS5444645B1 (en) |
| BE (1) | BE782555A (en) |
| CA (1) | CA952739A (en) |
| FR (1) | FR2136690A5 (en) |
| IL (1) | IL39168A (en) |
| IT (1) | IT957230B (en) |
| SE (1) | SE384878B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2350161A1 (en) * | 1972-10-06 | 1974-05-22 | Hitachi Ltd | SUPRAL CONDUCTIVE ELEMENTS AND METHOD FOR MANUFACTURING SUCH SUPRAL CONDUCTIVE ELEMENTS |
-
1972
- 1972-03-30 CA CA138,659A patent/CA952739A/en not_active Expired
- 1972-04-10 IL IL39168A patent/IL39168A/en unknown
- 1972-04-20 SE SE7205169A patent/SE384878B/en unknown
- 1972-04-21 IT IT7338/72A patent/IT957230B/en active
- 1972-04-24 BE BE782555A patent/BE782555A/en unknown
- 1972-04-25 FR FR7214713A patent/FR2136690A5/en not_active Expired
- 1972-04-26 JP JP4148372A patent/JPS5444645B1/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2350161A1 (en) * | 1972-10-06 | 1974-05-22 | Hitachi Ltd | SUPRAL CONDUCTIVE ELEMENTS AND METHOD FOR MANUFACTURING SUCH SUPRAL CONDUCTIVE ELEMENTS |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5444645B1 (en) | 1979-12-27 |
| IL39168A (en) | 1974-09-10 |
| IL39168A0 (en) | 1972-06-28 |
| IT957230B (en) | 1973-10-10 |
| BE782555A (en) | 1972-08-16 |
| SE384878B (en) | 1976-05-24 |
| CA952739A (en) | 1974-08-13 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |