NO180765C - Fremgangsmåte for fremstilling av et supraledende materiale - Google Patents
Fremgangsmåte for fremstilling av et supraledende materialeInfo
- Publication number
- NO180765C NO180765C NO890562A NO890562A NO180765C NO 180765 C NO180765 C NO 180765C NO 890562 A NO890562 A NO 890562A NO 890562 A NO890562 A NO 890562A NO 180765 C NO180765 C NO 180765C
- Authority
- NO
- Norway
- Prior art keywords
- carboxylate
- nitrate
- composition
- temperature
- superconducting
- Prior art date
Links
- 238000000034 method Methods 0.000 title abstract 2
- 239000000203 mixture Substances 0.000 abstract 5
- 150000007942 carboxylates Chemical class 0.000 abstract 3
- XTVVROIMIGLXTD-UHFFFAOYSA-N copper(II) nitrate Chemical compound [Cu+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O XTVVROIMIGLXTD-UHFFFAOYSA-N 0.000 abstract 3
- 229910002651 NO3 Inorganic materials 0.000 abstract 2
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 abstract 2
- 239000007864 aqueous solution Substances 0.000 abstract 2
- 239000000843 powder Substances 0.000 abstract 2
- 239000000725 suspension Substances 0.000 abstract 2
- 229910052692 Dysprosium Inorganic materials 0.000 abstract 1
- 229910052693 Europium Inorganic materials 0.000 abstract 1
- 229910052688 Gadolinium Inorganic materials 0.000 abstract 1
- 229910052689 Holmium Inorganic materials 0.000 abstract 1
- 229910052765 Lutetium Inorganic materials 0.000 abstract 1
- 229910052779 Neodymium Inorganic materials 0.000 abstract 1
- 229910052772 Samarium Inorganic materials 0.000 abstract 1
- 229910052784 alkaline earth metal Inorganic materials 0.000 abstract 1
- 150000001342 alkaline earth metals Chemical class 0.000 abstract 1
- 229910052788 barium Inorganic materials 0.000 abstract 1
- 229910052791 calcium Inorganic materials 0.000 abstract 1
- 238000001816 cooling Methods 0.000 abstract 1
- 238000001035 drying Methods 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 239000002243 precursor Substances 0.000 abstract 1
- 229910052712 strontium Inorganic materials 0.000 abstract 1
- 230000007704 transition Effects 0.000 abstract 1
- 229910052727 yttrium Inorganic materials 0.000 abstract 1
Classifications
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G3/00—Compounds of copper
- C01G3/006—Compounds containing, besides copper, two or more other elements, with the exception of oxygen or hydrogen
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
- C04B35/45—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on copper oxide or solid solutions thereof with other oxides
- C04B35/4504—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on copper oxide or solid solutions thereof with other oxides containing rare earth oxides
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
- C04B35/45—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on copper oxide or solid solutions thereof with other oxides
- C04B35/4512—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on copper oxide or solid solutions thereof with other oxides containing thallium oxide
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
- C04B35/45—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on copper oxide or solid solutions thereof with other oxides
- C04B35/4521—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on copper oxide or solid solutions thereof with other oxides containing bismuth oxide
-
- 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
- H10N60/0268—Manufacture or treatment of devices comprising copper oxide
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2002/00—Crystal-structural characteristics
- C01P2002/70—Crystal-structural characteristics defined by measured X-ray, neutron or electron diffraction data
- C01P2002/72—Crystal-structural characteristics defined by measured X-ray, neutron or electron diffraction data by d-values or two theta-values, e.g. as X-ray diagram
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2002/00—Crystal-structural characteristics
- C01P2002/70—Crystal-structural characteristics defined by measured X-ray, neutron or electron diffraction data
- C01P2002/76—Crystal-structural characteristics defined by measured X-ray, neutron or electron diffraction data by a space-group or by other symmetry indications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/60—Particles characterised by their size
- C01P2004/61—Micrometer sized, i.e. from 1-100 micrometer
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/60—Particles characterised by their size
- C01P2004/62—Submicrometer sized, i.e. from 0.1-1 micrometer
-
- 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
- Y10S505/725—Process of making or treating high tc, above 30 k, superconducting shaped material, article, or device
- Y10S505/734—From organometallic precursors, e.g. acetylacetonates
-
- 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
- Y10S505/725—Process of making or treating high tc, above 30 k, superconducting shaped material, article, or device
- Y10S505/737—From inorganic salt precursors, e.g. nitrates
-
- 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
- Y10S505/725—Process of making or treating high tc, above 30 k, superconducting shaped material, article, or device
- Y10S505/737—From inorganic salt precursors, e.g. nitrates
- Y10S505/738—From inorganic salt precursors, e.g. nitrates by precipitating
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Inorganic Chemistry (AREA)
- Inorganic Compounds Of Heavy Metals (AREA)
- Compositions Of Oxide Ceramics (AREA)
- Superconductors And Manufacturing Methods Therefor (AREA)
- Superconductor Devices And Manufacturing Methods Thereof (AREA)
- Oxygen, Ozone, And Oxides In General (AREA)
- Ladders (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US5984887A | 1987-06-09 | 1987-06-09 | |
PCT/US1988/002024 WO1988010009A1 (en) | 1987-06-09 | 1988-06-08 | Improved process for making superconductors |
Publications (4)
Publication Number | Publication Date |
---|---|
NO890562D0 NO890562D0 (no) | 1989-02-09 |
NO890562L NO890562L (no) | 1989-04-10 |
NO180765B NO180765B (no) | 1997-03-03 |
NO180765C true NO180765C (no) | 1997-06-11 |
Family
ID=22025675
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NO890562A NO180765C (no) | 1987-06-09 | 1989-02-09 | Fremgangsmåte for fremstilling av et supraledende materiale |
Country Status (14)
Country | Link |
---|---|
US (1) | US5061683A (no) |
EP (1) | EP0363435B1 (no) |
JP (1) | JPH02503787A (no) |
KR (1) | KR890702261A (no) |
CN (1) | CN1028390C (no) |
AT (1) | ATE95008T1 (no) |
AU (1) | AU608640B2 (no) |
CA (1) | CA1337373C (no) |
DE (1) | DE3884395T2 (no) |
DK (1) | DK620689A (no) |
HK (1) | HK17994A (no) |
HU (1) | HU210432B (no) |
NO (1) | NO180765C (no) |
WO (1) | WO1988010009A1 (no) |
Families Citing this family (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5149682A (en) * | 1987-09-11 | 1992-09-22 | W. R. Grace & Co. -Conn. | Manufacturing method for superconducting ceramics and products thereof |
US4906608A (en) * | 1987-12-28 | 1990-03-06 | Iowa State University Research Foundation | Method for preparing superconductors ceramic composition |
AU635410B2 (en) * | 1988-01-15 | 1993-03-18 | University Of Arkansas, The | A high temperature superconductor system and processes for making same |
FR2641530B2 (fr) * | 1988-01-29 | 1993-05-28 | Centre Nat Rech Scient | Nouveau materiau composite, procede de fabrication et application |
US4929594A (en) * | 1988-03-14 | 1990-05-29 | E. I. Du Pont De Nemours And Company | Superconducting composition Tl2 Ba2 CuO6+x and process for manufacture |
NZ228132A (en) | 1988-04-08 | 1992-04-28 | Nz Government | Metal oxide material comprising various mixtures of bi, tl, pb, sr, ca, cu, y and ag |
JPH01305816A (ja) * | 1988-06-01 | 1989-12-11 | Agency Of Ind Science & Technol | 高温超伝導体 |
US5019555A (en) * | 1988-08-10 | 1991-05-28 | General Atomics | High purity superconducting compositions and methods for their fabrication |
US5126316A (en) * | 1988-08-24 | 1992-06-30 | E. I. Du Pont De Nemours And Company | Bi2 Sr3-x Yx Cu2 O8+y superconducting metal oxide compositions |
EP0362685B1 (en) * | 1988-09-28 | 1993-02-10 | Nec Corporation | An oxide superconductor composition and a process for the production thereof |
US4996189A (en) * | 1988-10-24 | 1991-02-26 | At&T Bell Laboratories | Method of producing mixed metal oxide material, and of producing a body comprising the material |
ATE123008T1 (de) * | 1988-10-26 | 1995-06-15 | Du Pont | Superleitfähige metalloxidzusammensetzungen und verfahren zur herstellung und verwendung. |
JPH0714818B2 (ja) * | 1989-03-23 | 1995-02-22 | 工業技術院長 | 超電導繊維状結晶およびその製造方法 |
FR2645851B1 (fr) * | 1989-04-12 | 1993-03-26 | Commissariat Energie Atomique | Poudre de precurseur d'un oxyde supraconducteur a base d'oxyde de cuivre, son procede de fabrication et son utilisation pour la preparation d'un oxyde supraconducteur |
US6209190B1 (en) * | 1996-05-03 | 2001-04-03 | The Korea Institute Of Machinery & Materials | Production of MgO dispersed Bi-2223 superconductor |
US5981445A (en) * | 1996-06-17 | 1999-11-09 | Corporation De I'ecole Polytechnique | Process of making fine ceramic powders from aqueous suspensions |
DE19800168A1 (de) * | 1998-01-06 | 1999-07-15 | Aventis Res & Tech Gmbh & Co | Verfahren zur Herstellung einer homogenen und stabilen Suspension aus Oxidvorprodukten |
CN100434365C (zh) * | 2005-10-11 | 2008-11-19 | 中国科学技术大学 | YBa2Cu3O7多晶纳米线阵列及其制备方法 |
RU2534320C1 (ru) * | 2013-07-24 | 2014-11-27 | Открытое акционерное общество "Государственный научно-исследовательский и проектный институт редкометаллической промышленности ОАО "Гиредмет" | Способ получения нанопорошков индивидуальных оксидов лантаноидов |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5137918B2 (no) * | 1974-07-10 | 1976-10-19 | ||
US4482644A (en) * | 1983-04-18 | 1984-11-13 | Exxon Research & Engineering Co. | Oxygen-deficient, barium-containing perovskites |
US4567031A (en) * | 1983-12-27 | 1986-01-28 | Combustion Engineering, Inc. | Process for preparing mixed metal oxides |
JPS6131345A (ja) * | 1984-07-25 | 1986-02-13 | 堺化学工業株式会社 | 組成物の製造方法 |
DE3430383A1 (de) * | 1984-08-17 | 1986-02-27 | Plasmainvent AG, Zug | Plasmaspritzbrenner fuer innenbeschichtungen |
US4636378A (en) * | 1985-06-11 | 1987-01-13 | Hughes Aircraft Company | Method of preparation of perovskite-type compounds |
US4661282A (en) * | 1985-06-24 | 1987-04-28 | The Dow Chemical Company | Inorganic anion exchangers and preparation thereof |
JPS6287456A (ja) * | 1985-10-11 | 1987-04-21 | 日本碍子株式会社 | 誘電体磁器用セラミツク組成物 |
DE3851180T2 (de) * | 1987-05-18 | 1995-05-24 | Sumitomo Electric Industries | Verfahren zur Herstellung oxidkeramischer supraleitender Fäden. |
JPS63288912A (ja) * | 1987-05-22 | 1988-11-25 | Hitachi Ltd | 無機酸化物超電導体の調製方法 |
DE3721147A1 (de) * | 1987-06-26 | 1989-01-05 | Vacuumschmelze Gmbh | Verfahren zur herstellung von draht- und/oder bandfoermigen supraleitern aus keramischer sintermasse |
-
1988
- 1988-05-31 US US07/197,961 patent/US5061683A/en not_active Expired - Fee Related
- 1988-06-08 EP EP88906392A patent/EP0363435B1/en not_active Expired - Lifetime
- 1988-06-08 DE DE88906392T patent/DE3884395T2/de not_active Expired - Fee Related
- 1988-06-08 JP JP63506103A patent/JPH02503787A/ja active Pending
- 1988-06-08 AU AU20852/88A patent/AU608640B2/en not_active Ceased
- 1988-06-08 HU HU884820A patent/HU210432B/hu not_active IP Right Cessation
- 1988-06-08 AT AT88906392T patent/ATE95008T1/de not_active IP Right Cessation
- 1988-06-08 WO PCT/US1988/002024 patent/WO1988010009A1/en active IP Right Grant
- 1988-06-09 CN CN88104506A patent/CN1028390C/zh not_active Expired - Fee Related
- 1988-06-09 CA CA000569064A patent/CA1337373C/en not_active Expired - Fee Related
-
1989
- 1989-02-09 NO NO890562A patent/NO180765C/no unknown
- 1989-02-09 KR KR1019890700224A patent/KR890702261A/ko active IP Right Grant
- 1989-12-08 DK DK620689A patent/DK620689A/da not_active Application Discontinuation
-
1994
- 1994-03-03 HK HK179/94A patent/HK17994A/xx not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
CA1337373C (en) | 1995-10-24 |
KR890702261A (ko) | 1989-12-23 |
EP0363435A4 (en) | 1990-03-22 |
DE3884395D1 (de) | 1993-10-28 |
HU210432B (en) | 1995-04-28 |
JPH02503787A (ja) | 1990-11-08 |
NO180765B (no) | 1997-03-03 |
EP0363435B1 (en) | 1993-09-22 |
HK17994A (en) | 1994-03-11 |
DK620689A (da) | 1990-01-31 |
US5061683A (en) | 1991-10-29 |
DK620689D0 (da) | 1989-12-08 |
NO890562D0 (no) | 1989-02-09 |
AU608640B2 (en) | 1991-04-11 |
DE3884395T2 (de) | 1994-04-21 |
EP0363435A1 (en) | 1990-04-18 |
ATE95008T1 (de) | 1993-10-15 |
AU2085288A (en) | 1989-01-04 |
CN1028390C (zh) | 1995-05-10 |
HUT52643A (en) | 1990-07-28 |
WO1988010009A1 (en) | 1988-12-15 |
NO890562L (no) | 1989-04-10 |
CN1031296A (zh) | 1989-02-22 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
NO180765C (no) | Fremgangsmåte for fremstilling av et supraledende materiale | |
US4983573A (en) | Process for making 90° K. superconductors by impregnating cellulosic article with precursor solution | |
US4866031A (en) | Process for making 90 K superconductors from acetate precursor solutions | |
KR890701471A (ko) | 90k 초전도체 제조의 개선된 방법 | |
US5011819A (en) | Process using supercritical conditions for producing highly accurate and homogeneous powder mixture useful in fabrication of high quality ceramic superconductors | |
Rao et al. | Chemical incorporation of fluorine into YBa2 Cu3O6. 5+ δ | |
US5236890A (en) | Method of producing superconductor of metal oxides | |
DE68905108T2 (de) | Yttrium-barium-kupfer-oxidpulver und verfahren zur herstellung eines supraleitenden gesinterten koerpers daraus. | |
KR100633671B1 (ko) | 향상된 반응성을 갖는납-비스무트-스트론튬-칼슘-구리-산화물 분말 혼합물 및그의 제조방법 | |
KR890702262A (ko) | 90k 초전도체의 개선된 제조방법 | |
US4900715A (en) | Method of preparing superconducting "orthorhomibic"-type compounds in bulk using C1 -C6 alkanoic acid salts | |
KR880011831A (ko) | 초전도성 물질 | |
US5369091A (en) | Process for the manufacture of 95% by weight single phase YCBO powder in one combustion step, comprising the use of citrate complex compounds as starting materials | |
Choy et al. | Preparation of 90K superconductor YBa2Cu3O7− δ via oxide precursors BaCuO2 and Y2Cu2O5 | |
KR890702214A (ko) | 90k 초전도체의 개선된 제조방법 | |
Przybylski et al. | The formation of superconducting oxide phases in the (Bi, Pb)− Sr− Ca− Cu− O System | |
US5304536A (en) | Process for making superconductor powder | |
HUT60875A (en) | Method for obtaining barian and copper bearing oxide superconductive product | |
KR920703453A (ko) | 초전도체의 제조 방법 | |
JPS6461373A (en) | Production of superconductor | |
Sinha et al. | Intermediate-phase-free processing of YBa2Cu3O7-x | |
WO1991006510A1 (en) | Process for the preparation of oxide type superconductors and precursors obtained therefor | |
Wada et al. | Method for Producing Oxide Superconductor | |
JPS649849A (en) | Production of superconducting material | |
Uzumaki et al. | Process for Preparing Superconductors |