GB1409340A - Superconducting niobium-gallium alloy - Google Patents
Superconducting niobium-gallium alloyInfo
- Publication number
- GB1409340A GB1409340A GB2999173A GB2999173A GB1409340A GB 1409340 A GB1409340 A GB 1409340A GB 2999173 A GB2999173 A GB 2999173A GB 2999173 A GB2999173 A GB 2999173A GB 1409340 A GB1409340 A GB 1409340A
- Authority
- GB
- United Kingdom
- Prior art keywords
- layer
- alloy
- deposited
- deposition
- beta
- 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
- 229910000807 Ga alloy Inorganic materials 0.000 title abstract 5
- 238000000151 deposition Methods 0.000 abstract 3
- 239000007789 gas Substances 0.000 abstract 3
- 230000008021 deposition Effects 0.000 abstract 2
- 229910052736 halogen Inorganic materials 0.000 abstract 2
- 150000002367 halogens Chemical class 0.000 abstract 2
- 239000000758 substrate Substances 0.000 abstract 2
- 239000012159 carrier gas Substances 0.000 abstract 1
- 239000000919 ceramic Substances 0.000 abstract 1
- 238000005229 chemical vapour deposition Methods 0.000 abstract 1
- 239000011521 glass Substances 0.000 abstract 1
- 239000008187 granular material Substances 0.000 abstract 1
- 229910052751 metal Inorganic materials 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- 238000010944 pre-mature reactiony Methods 0.000 abstract 1
- 239000010453 quartz Substances 0.000 abstract 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
- C23C16/06—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the deposition of metallic material
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
- C23C16/02—Pretreatment of the material to be coated
- C23C16/0272—Deposition of sub-layers, e.g. to promote the adhesion of the main coating
- C23C16/0281—Deposition of sub-layers, e.g. to promote the adhesion of the main coating of metallic sub-layers
-
- 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
- H10N60/01—Manufacture or treatment
-
- 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
- H10N60/01—Manufacture or treatment
- H10N60/0184—Manufacture or treatment of devices comprising intermetallic compounds of type A-15, e.g. Nb3Sn
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S428/00—Stock material or miscellaneous articles
- Y10S428/922—Static electricity metal bleed-off metallic stock
- Y10S428/9265—Special properties
- Y10S428/93—Electric superconducting
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S428/00—Stock material or miscellaneous articles
- Y10S428/922—Static electricity metal bleed-off metallic stock
- Y10S428/9335—Product by special process
- Y10S428/938—Vapor deposition or gas diffusion
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S505/00—Superconductor technology: apparatus, material, process
- Y10S505/80—Material per se process of making same
- Y10S505/801—Composition
- Y10S505/805—Alloy or metallic
- Y10S505/806—Niobium base, Nb
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S505/00—Superconductor technology: apparatus, material, process
- Y10S505/80—Material per se process of making same
- Y10S505/812—Stock
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S505/00—Superconductor technology: apparatus, material, process
- Y10S505/80—Material per se process of making same
- Y10S505/815—Process of making per se
- Y10S505/818—Coating
- Y10S505/819—Vapor deposition
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49002—Electrical device making
- Y10T29/49014—Superconductor
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/12—All metal or with adjacent metals
- Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
- Y10T428/12639—Adjacent, identical composition, components
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/12—All metal or with adjacent metals
- Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
- Y10T428/12771—Transition metal-base component
- Y10T428/12806—Refractory [Group IVB, VB, or VIB] metal-base component
- Y10T428/12819—Group VB metal-base component
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Metallurgy (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- General Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Crystals, And After-Treatments Of Crystals (AREA)
- Chemical Vapour Deposition (AREA)
- Superconductor Devices And Manufacturing Methods Thereof (AREA)
- Superconductors And Manufacturing Methods Therefor (AREA)
Abstract
1409340 Depositing Nb-Ga alloys RCA CORPORATION 25 June 1973 [3 July 1972] 29991/73 Heading C7F [Also in Division H1] A super-conducting article comprises a substrate having a first layer of a Nb-rich Nb-Ga alloy of beta-tungsten structure having a critical temperature of 13-15K and a second layer of Nb-Ga alloy of beta-tungsten structure having a critical temperature above 19K, the second layer comprising substantially one molecule of Ga to three molecules of Nb. The layers may be deposited by chemical vapour deposition, the first at T>700C and the second at 640-700C; the substrate may be metal, ceramic, glass or quartz. As shown, He (or Ar) as carrier gas enters tubes 18 and 19, whilst H 2 as reducing gas enters at 14. Halogen-containing gas, e.g. HCl or Cl 2 , is passed over Nb granules 20 and over Ga in boat 21 in relative amounts to produce the required deposition atmosphere, excess gas being fed in at 22 to prevent premature reaction and deposition. With the reactor temperature above 700 C, a first layer, e.g. 3-5Á thick, of Nb-Ga alloy is deposited, then the temperature is lowered to 640-700C, and the supply of halogen to the Nb is lowered, and the required second layer is deposited.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US00268805A US3824082A (en) | 1972-07-03 | 1972-07-03 | Process for preparing superconducting niobium-gallium alloy |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1409340A true GB1409340A (en) | 1975-10-08 |
Family
ID=23024562
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2999173A Expired GB1409340A (en) | 1972-07-03 | 1973-06-25 | Superconducting niobium-gallium alloy |
Country Status (7)
Country | Link |
---|---|
US (1) | US3824082A (en) |
JP (1) | JPS4943812A (en) |
CA (1) | CA995310A (en) |
DE (1) | DE2332835A1 (en) |
FR (1) | FR2190610B1 (en) |
GB (1) | GB1409340A (en) |
NL (1) | NL7304879A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0319585A1 (en) * | 1987-06-16 | 1989-06-14 | Kawasaki Steel Corporation | Process for forming thin film of oxide superconductor |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4101731A (en) * | 1976-08-20 | 1978-07-18 | Airco, Inc. | Composite multifilament superconductors |
US4242419A (en) * | 1977-12-29 | 1980-12-30 | Bell Telephone Laboratories, Incorporated | Epitaxial growth of superconductors such as Nb3 Ge superconductors |
JPS60165338A (en) * | 1984-02-08 | 1985-08-28 | Hitachi Ltd | Compound super-conductor and its preparation |
DE19504754A1 (en) * | 1995-02-03 | 1996-08-08 | Univ Leipzig | Photovoltaic and photoelectrical components used e.g. in solar cells |
-
1972
- 1972-07-03 US US00268805A patent/US3824082A/en not_active Expired - Lifetime
-
1973
- 1973-04-09 NL NL7304879A patent/NL7304879A/xx unknown
- 1973-05-18 FR FR7318223A patent/FR2190610B1/fr not_active Expired
- 1973-06-04 CA CA173,127A patent/CA995310A/en not_active Expired
- 1973-06-25 GB GB2999173A patent/GB1409340A/en not_active Expired
- 1973-06-28 DE DE2332835A patent/DE2332835A1/en active Pending
- 1973-07-02 JP JP48074674A patent/JPS4943812A/ja active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0319585A1 (en) * | 1987-06-16 | 1989-06-14 | Kawasaki Steel Corporation | Process for forming thin film of oxide superconductor |
EP0319585B1 (en) * | 1987-06-16 | 1994-02-16 | Kawasaki Steel Corporation | Process for forming thin film of oxide superconductor |
Also Published As
Publication number | Publication date |
---|---|
NL7304879A (en) | 1974-01-07 |
JPS4943812A (en) | 1974-04-25 |
CA995310A (en) | 1976-08-17 |
FR2190610B1 (en) | 1976-05-07 |
US3824082A (en) | 1974-07-16 |
DE2332835A1 (en) | 1974-01-24 |
FR2190610A1 (en) | 1974-02-01 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
PLNP | Patent lapsed through nonpayment of renewal fees |