WO2014081097A1 - 고온 초전도 선재 - Google Patents
고온 초전도 선재 Download PDFInfo
- Publication number
- WO2014081097A1 WO2014081097A1 PCT/KR2013/005329 KR2013005329W WO2014081097A1 WO 2014081097 A1 WO2014081097 A1 WO 2014081097A1 KR 2013005329 W KR2013005329 W KR 2013005329W WO 2014081097 A1 WO2014081097 A1 WO 2014081097A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- superconducting wire
- metal substrate
- layer
- protective layer
- high temperature
- Prior art date
Links
- 239000000463 material Substances 0.000 title abstract description 11
- 239000002184 metal Substances 0.000 claims abstract description 82
- 229910052751 metal Inorganic materials 0.000 claims abstract description 82
- 239000010410 layer Substances 0.000 claims abstract description 72
- 239000000758 substrate Substances 0.000 claims abstract description 72
- 239000011241 protective layer Substances 0.000 claims abstract description 52
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims abstract description 25
- 239000010949 copper Substances 0.000 claims abstract description 25
- 229910052709 silver Inorganic materials 0.000 claims abstract description 25
- 239000004332 silver Substances 0.000 claims abstract description 25
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 21
- 229910052802 copper Inorganic materials 0.000 claims abstract description 21
- 239000004020 conductor Substances 0.000 claims description 14
- 238000004804 winding Methods 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 2
- 238000010030 laminating Methods 0.000 claims 1
- 230000005415 magnetization Effects 0.000 abstract description 8
- 230000005389 magnetism Effects 0.000 abstract 1
- 239000010409 thin film Substances 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000004544 sputter deposition Methods 0.000 description 4
- 238000003475 lamination Methods 0.000 description 3
- 229910044991 metal oxide Inorganic materials 0.000 description 3
- 150000004706 metal oxides Chemical class 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000696 magnetic material Substances 0.000 description 2
- 239000012744 reinforcing agent Substances 0.000 description 2
- 229910000679 solder Inorganic materials 0.000 description 2
- 229910001369 Brass Inorganic materials 0.000 description 1
- 229910000990 Ni alloy Inorganic materials 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000032798 delamination Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000002887 superconductor Substances 0.000 description 1
- 229910021521 yttrium barium copper oxide Inorganic materials 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B12/00—Superconductive or hyperconductive conductors, cables, or transmission lines
- H01B12/02—Superconductive or hyperconductive conductors, cables, or transmission lines characterised by their form
- H01B12/06—Films or wires on bases or cores
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
- H01B13/0036—Details
-
- 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
- H10N60/0268—Manufacture or treatment of devices comprising copper oxide
- H10N60/0801—Manufacture or treatment of filaments or composite wires
-
- 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
- H10N60/20—Permanent superconducting devices
- H10N60/203—Permanent superconducting devices comprising high-Tc ceramic materials
-
- 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
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
- Y10T428/2913—Rod, strand, filament or fiber
- Y10T428/2933—Coated or with bond, impregnation or core
- Y10T428/294—Coated or with bond, impregnation or core including metal or compound thereof [excluding glass, ceramic and asbestos]
- Y10T428/2942—Plural coatings
- Y10T428/2944—Free metal in coating
Definitions
- the present invention relates to a high temperature superconducting wire, and more particularly, a metal protective layer is formed on the exposed superconducting layer by removing the metal substrate by interfacing the metal substrate and the superconducting layer of the second generation high temperature superconducting wire.
- a metal protective layer is formed on the exposed superconducting layer by removing the metal substrate by interfacing the metal substrate and the superconducting layer of the second generation high temperature superconducting wire.
- the tape-shaped second generation high temperature superconducting wire is the mainstream and is the most widely used.
- a metal substrate 100 is formed on a lower surface, and a buffer layer including a multilayer of a metal oxide thin film on the upper surface of the metal substrate 100.
- a 110 is formed and a superconducting conductor layer 210, which is a metal oxide thin film, is formed on the buffer layer.
- a metal protective layer is formed on a lower surface of the metal substrate 100 and an upper surface of the superconducting conductor layer 210.
- the metal protective layer has a silver (Ag) protective layer generally formed therein, and a copper ( Cu)
- the high temperature superconducting wire of a tape shape is comprised in the form in which the protective layer 220 is formed.
- a metal substrate 100 is required.
- a metal such as magnetic nickel or a nickel alloy is usually used.
- the thickness is about 50 ⁇ m to about 100 ⁇ m
- the buffer layer 110 has a thickness within about 0.2 ⁇ m
- the superconductor layer 210 is about 1 ⁇ m thick.
- the silver protective layer 220 has a thickness within about 2 ⁇ m
- the copper protective layer 230 has a thickness of about 20 ⁇ m bar
- the thickness of the metal substrate of the total thickness of the high-temperature superconducting wire is more than half Will occupy.
- Jc critical current density
- Je engineering current density
- the magnetic substrate 100 since the magnetic material or the magnetic material properties remain, the magnetic substrate becomes magnetic after the manufacture of the superconducting wire, so that the magnetization loss may occur during the application.
- highly uniform magnetic field applications such as MRI and NMR It causes magnetic field distortion.
- the high temperature superconducting layer through which the actual current is applied is very thin, about 1 ⁇ m, so that the thickness of the superconducting layer (more precisely, the area by thickness and width, but is generally fixed at 4 mm or 10 mm)
- the critical current density (Jc) for the current-carrying characteristics is high as millions of A / cm 2 .
- the thickness of the metal substrate 100 accounts for the total wire thickness, the current value for the total superconducting wire thickness is represented, and the Je (critical engineering current density), which is an important characteristic in designing for practical application, is tens of thousands of A / cm 2 , there is a problem that kbibi.
- the present invention has been made to solve the above problems of the prior art, by removing the metal substrate by interfacing the metal substrate of the second generation high temperature superconducting wire and the superconducting layer to form a metal protective layer on the exposed superconducting layer again.
- the superconducting wire By forming the superconducting wire with the metal substrate removed, the magnetization loss due to the removal of the substrate having magnetic components is reduced, the wire stability is excellent, and the Je (engineering current density) is increased by minimizing the thickness of the superconducting wire.
- An object of the present invention is to provide a high temperature superconducting wire.
- the present invention for achieving the above object is a preliminary superconductivity formed by forcibly removing the metal substrate from a superconducting wire formed of a metal substrate, a buffer layer formed on the upper surface of the metal substrate, and a superconducting conductor layer formed on the buffer layer upper surface.
- the high temperature superconducting wire including a copper (Cu) protective layer formed on the lower surface of the silver protective layer is a technical gist.
- a silver protective layer and a copper protective layer are sequentially laminated on the superconducting conductor layer.
- the buffer layer is preferably removed like the metal substrate.
- the metal substrate is preferably removed by welding the superconducting wire to the metal tape plate.
- the metal substrate may be removed by winding two metal rollers and a preliminary superconducting wire layer removed by installing two rollers spaced apart from each other.
- the metal substrate is removed by interfacial separation between the metal substrate and the superconducting layer of the second generation high temperature superconducting wire, and then the metal protective layer is formed on the exposed superconducting layer again to form a superconducting wire from which the metal substrate is removed.
- Magnets with improved uniformity of magnetic field can be manufactured, magnetization loss caused by magnetic component of metal substrate is reduced, thermal conductivity and stability are excellent, peeling phenomenon is essentially eliminated, and Je ( There is an advantage that the engineering current density is increased 2-3 times.
- FIG. 1 is a schematic cross-sectional view showing the structure of a high temperature superconducting wire according to the prior art
- FIG. 2 is a schematic cross-sectional view showing a preliminary superconducting wire material from which a metal substrate is removed according to an embodiment of the present invention
- FIG. 3 is a schematic cross-sectional view of a high temperature superconducting wire according to an embodiment of the present invention
- Figure 4 is a view showing a superconducting wire picture of a known product according to an embodiment of the present invention
- FIG. 5 is a view showing a shape in which the metal substrate of the superconducting wire of FIG. 4 is removed;
- FIG. 6 is a view illustrating a shape in which a silver protective layer is formed on the superconducting wire of FIG. 5.
- FIG. 7 is a view illustrating a shape in which a copper protective layer is formed on the superconducting wire of FIG. 6.
- FIG. 8 is a view illustrating a specimen photograph for measuring a critical current manufactured using the high temperature superconducting wire of FIG. 7,
- FIG. 9 is a diagram illustrating a threshold current measured using the specimen of FIG. 8.
- FIG. 2 is a schematic cross-sectional view showing a preliminary superconducting wire material from which a metal substrate is removed according to an embodiment of the present invention
- FIG. 3 is a schematic cross-sectional view of a high temperature superconducting wire according to an embodiment of the present invention
- FIG. Figure 5 is a view showing a superconducting wire picture of a known product according to Figure 5 is a view showing a shape in which the metal substrate of the superconducting wire of Figure 4 is removed
- Figure 6 is a shape of forming a silver protective layer on the superconducting wire of Figure 5
- FIG. 7 is a view showing a shape in which a copper protective layer is formed on the superconducting wire of FIG. 6,
- FIG. 8 is a view showing a specimen photograph for critical current measurement manufactured using the high temperature superconducting wire of FIG. 7.
- 9 is a diagram illustrating a threshold current measured by using the specimen of FIG. 8.
- the production of the high temperature superconducting wire of the present invention is produced using a second generation high temperature superconducting wire which is a known product.
- the preliminary superconducting wire layer 200 is formed by purchasing a tape-shaped superconducting wire product having a structure as shown in FIG.
- the wire layer 200 is formed.
- the preliminary superconducting wire layer 200 has a structure in which a superconducting conductor layer 210 is formed on the lowermost side, and a silver protective layer 220 and a copper protective layer 220 are sequentially stacked on the upper surface.
- the buffer layer is also peeled off like the metal substrate.
- the MgO layer which is an insulating layer formed on the upper surface of the buffer layer, remains in the preliminary superconducting wire layer.
- a preliminary superconducting wire layer 200 as shown in FIG. 2 is prepared.
- the preliminary superconducting wire layer 200 has a structure in which a superconducting conductor layer 210 is formed on the lowermost side, and a silver protective layer 220 and a copper protective layer 220 are sequentially stacked on the upper surface thereof. do.
- the silver protective layer 220 should be formed on the lower surface of the superconducting conductor layer 210 of the preliminary superconducting wire layer 200.
- the silver protective layer 220 is formed on the lower surface of the superconducting conductor layer 210 by using a sputtering method. To form.
- the silver protective layer 220 is formed to have a thickness of about 1.8 ⁇ m.
- a copper protective layer 230 is formed on the lower surface of the silver protective layer 220, and the copper protective layer 230 is formed in a thin film form on the lower surface of the silver protective layer 220 by sputtering or plating.
- the copper protective layer 230 is formed to have a thickness of about 20 ⁇ m, thereby completing the high temperature superconducting wire in which the metal substrate according to the present invention as shown in FIG. 3 is removed.
- a metal reinforcing agent on the upper and lower sides of the high temperature superconducting wire according to the embodiment of the present invention, it is possible to increase the mechanical strength by lamination (lamination) of a laminated structure.
- the metal reinforcing agent brass, copper, stainless steel, or the like, which is generally used, is preferably used.
- the superconducting wire is a joist
- FIG. 4 is a view showing a picture of the superconducting wire which is a known product of FIG. 1 according to an embodiment of the present invention.
- 5 shows a portion of the metal substrate removed by attaching the well-known superconducting wire to the metal tape plate with InBi solder and then removing the metal substrate.
- FIG. 5 is a portion where a metal substrate and a buffer layer are removed, and shows a preliminary superconducting wire layer, wherein the preliminary superconducting wire layer has a superconducting conductor layer formed on the lowermost side thereof, and a silver protective layer and a copper protective layer are sequentially stacked on the upper surface thereof. Having a structure is as described above.
- a silver protective layer is formed on the lower surface of the superconducting conductor layer of the preliminary superconducting wire layer, and a silver protective layer is formed on the lower surface of the superconducting conductor layer by sputtering.
- a copper protective layer was formed on the lower surface of the silver protective layer, and the copper protective layer was formed in the form of a thin film on the lower surface of the silver protective layer by sputtering to complete the high temperature superconducting wire of the present invention.
- the high-temperature superconducting wire of FIG. 7 was partially cut to evaluate the current-voltage characteristics.
- the high-temperature superconducting wire of FIG. 7 was partially cut to have a length of 7 cm, and the threshold current was measured after forming the electrode as shown in FIG. It was.
- FIG. 9 shows the critical current of the high temperature superconducting wire according to the present invention, and also shows the threshold current value in the case of a known superconducting wire having a conventional metal substrate as a comparative example.
- the threshold current value of the specimen according to the present invention appears smaller than the known threshold current value of the superconducting wire, which is not the edge of the edge during tearing the metal substrate during the manufacturing process of the sample of the present invention is not good After removing the portion, the high temperature superconducting wire of the present invention was manufactured, and thus, the width of the superconducting wire was reduced, and thus the threshold current was reduced.
- the present invention removes the metal substrate by interfacing the metal substrate of the second generation high temperature superconducting wire and the superconducting layer, and then forms a metal protective layer on the exposed superconducting layer to form the superconducting wire from which the metal substrate is removed.
- the present invention relates to a high temperature superconducting wire, and more particularly, a metal protective layer is formed on the exposed superconducting layer again after removing the metal substrate by interfacing the metal substrate and the superconducting layer of the second generation high temperature superconducting wire.
- a metal protective layer is formed on the exposed superconducting layer again after removing the metal substrate by interfacing the metal substrate and the superconducting layer of the second generation high temperature superconducting wire.
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Superconductors And Manufacturing Methods Therefor (AREA)
Abstract
Description
Claims (5)
- 금속기판과, 금속기판 상면에 형성된 버퍼층과, 상기 버퍼층 상면에 형성된 초전도 도체층을 포함하여 형성된 초전도 선재에서 상기 금속 기판을 강제로 제거하여 형성되는 예비 초전도 선재층과;상기 예비초전도 선재층 하면에 형성되는 은(Ag) 보호층과;상기 은 보호층 하면에 형성된 구리(Cu) 보호층;을 포함하여 구성됨을 특징으로 하는 고온 초전도 선재.
- 제1항에 있어서, 상기 예비초전도 선재층은, 상기 초전도 도체층 상면에 은 보호층과, 구리 보호층이 차례로 적층 형성됨을 특징으로 하는 고온 초전도 선재.
- 제1항 또는 제2항에 있어서, 상기 버퍼층은 상기 금속기판과 같이 제거됨을 특징으로 하는 고온 초전도 선재.
- 제3항에 있어서, 상기 금속기판의 제거는 금속 테이프판에 초전도 선재를 용접한 후 기판을 제거함을 특징으로 하는 고온 초전도 선재.
- 제3항에 있어서, 상기 금속기판의 제거는 이격된 2개의 롤러를 설치하여 제거된 금속기판과 예비초전도 선재층을 상기 2개의 롤러에 각각 감음을 특징으로 하는 고온 초전도 선재.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US14/713,233 US20150248952A1 (en) | 2012-11-26 | 2015-05-15 | High-temperature superconducting wire material |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR10-2012-0134793 | 2012-11-26 | ||
KR1020120134793A KR101410841B1 (ko) | 2012-11-26 | 2012-11-26 | 고온 초전도 선재 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US14/713,233 Continuation US20150248952A1 (en) | 2012-11-26 | 2015-05-15 | High-temperature superconducting wire material |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2014081097A1 true WO2014081097A1 (ko) | 2014-05-30 |
Family
ID=50776246
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/KR2013/005329 WO2014081097A1 (ko) | 2012-11-26 | 2013-06-18 | 고온 초전도 선재 |
Country Status (3)
Country | Link |
---|---|
US (1) | US20150248952A1 (ko) |
KR (1) | KR101410841B1 (ko) |
WO (1) | WO2014081097A1 (ko) |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2017003127A1 (ko) * | 2015-06-30 | 2017-01-05 | 엘에스전선 주식회사 | 초전도 선재 |
KR102388542B1 (ko) * | 2015-06-30 | 2022-04-20 | 엘에스전선 주식회사 | 초전도 선재 |
KR102397467B1 (ko) * | 2015-09-18 | 2022-05-13 | 한국전기연구원 | 고온 초전도 선재의 결함 보수 방법 및 고온 초전도 선재의 제조 방법 |
KR102683995B1 (ko) * | 2016-01-21 | 2024-07-12 | 브룩해븐 테크놀로지 그룹, 인크. | 제2세대 초전도성 필라멘트와 케이블 |
US10811589B2 (en) | 2016-09-07 | 2020-10-20 | Brookhaven Technology Group, Inc. | Reel-to-reel exfoliation and processing of second generation superconductors |
US10804010B2 (en) * | 2017-05-12 | 2020-10-13 | American Superconductor Corporation | High temperature superconducting wires having increased engineering current densities |
EP3635754A4 (en) * | 2017-06-09 | 2021-02-24 | Brookhaven Technology Group, Inc. | MULTI-FILAMENT HIGH TEMPERATURE FLEXIBLE SUPPRACONDUCTOR CABLE |
KR20180137790A (ko) * | 2017-06-19 | 2018-12-28 | 한국전기연구원 | 금속-절연체 전이 물질을 구비한 고온 초전도 선재 |
WO2019107597A1 (ko) * | 2017-11-29 | 2019-06-06 | 주식회사 서남 | 세라믹 선재의 제조방법 |
WO2021101086A1 (ko) * | 2019-11-20 | 2021-05-27 | 주식회사 서남 | 유연성 있는 선재와 그의 가공 방법 |
WO2021100969A1 (ko) * | 2019-11-20 | 2021-05-27 | 주식회사 서남 | 초전도 층의 박리 방법 및 그의 박리 장치 |
KR102440393B1 (ko) * | 2019-11-20 | 2022-09-06 | 주식회사 서남 | 유연성 있는 선재와 그의 가공 방법 |
DE102021100398A1 (de) * | 2021-01-12 | 2022-07-14 | Airbus Defence and Space GmbH | Leiterplatte zur Übertragung von elektrischer Energie und zur Signalübertragung sowie System mit einer solchen Leiterplatte |
CN113611457A (zh) * | 2021-08-04 | 2021-11-05 | 东部超导科技(苏州)有限公司 | 具有超高电流密度的超导带材结构及其制备方法 |
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KR20040082610A (ko) * | 2003-03-19 | 2004-09-30 | 한국전기연구원 | 복제방법에 의한 초전도체의 제조방법 |
US20060079403A1 (en) * | 2003-06-27 | 2006-04-13 | Superpower, Inc. | Novel superconducting articles, and methods for forming and using same |
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KR20080064779A (ko) * | 2008-06-13 | 2008-07-09 | 정석화 | 전동손수레의 받침대 이송장치 |
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US7071148B1 (en) * | 2005-04-08 | 2006-07-04 | Superpower, Inc. | Joined superconductive articles |
ES2553261T3 (es) * | 2005-07-29 | 2015-12-07 | American Superconductor Corporation | Cables y bobinas superconductores a altas temperaturas |
US8030246B2 (en) * | 2006-07-21 | 2011-10-04 | American Superconductor Corporation | Low resistance splice for high temperature superconductor wires |
-
2012
- 2012-11-26 KR KR1020120134793A patent/KR101410841B1/ko active IP Right Grant
-
2013
- 2013-06-18 WO PCT/KR2013/005329 patent/WO2014081097A1/ko active Application Filing
-
2015
- 2015-05-15 US US14/713,233 patent/US20150248952A1/en not_active Abandoned
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
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JP4041672B2 (ja) * | 1999-07-23 | 2008-01-30 | アメリカン スーパーコンダクター コーポレイション | 接合高温超伝導性被覆テープ |
KR20040082610A (ko) * | 2003-03-19 | 2004-09-30 | 한국전기연구원 | 복제방법에 의한 초전도체의 제조방법 |
US20060079403A1 (en) * | 2003-06-27 | 2006-04-13 | Superpower, Inc. | Novel superconducting articles, and methods for forming and using same |
KR100618606B1 (ko) * | 2004-06-02 | 2006-09-08 | 한국전기연구원 | 금속 산화물 소자를 제조하는 방법 |
KR20080064779A (ko) * | 2008-06-13 | 2008-07-09 | 정석화 | 전동손수레의 받침대 이송장치 |
Also Published As
Publication number | Publication date |
---|---|
KR101410841B1 (ko) | 2014-06-23 |
US20150248952A1 (en) | 2015-09-03 |
KR20140067495A (ko) | 2014-06-05 |
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