JPH01109612A - Laminate type superconductive plate and its manufacture - Google Patents
Laminate type superconductive plate and its manufactureInfo
- Publication number
- JPH01109612A JPH01109612A JP62266331A JP26633187A JPH01109612A JP H01109612 A JPH01109612 A JP H01109612A JP 62266331 A JP62266331 A JP 62266331A JP 26633187 A JP26633187 A JP 26633187A JP H01109612 A JPH01109612 A JP H01109612A
- Authority
- JP
- Japan
- Prior art keywords
- superconducting
- oxidized
- less
- sides
- plate
- 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.)
- Pending
Links
- 238000004519 manufacturing process Methods 0.000 title claims description 3
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims abstract description 18
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 11
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 11
- 239000001301 oxygen Substances 0.000 claims abstract description 11
- 229910052709 silver Inorganic materials 0.000 claims abstract description 7
- 239000004332 silver Substances 0.000 claims abstract description 7
- 239000011888 foil Substances 0.000 claims abstract description 6
- 238000001816 cooling Methods 0.000 claims abstract description 5
- 239000000463 material Substances 0.000 claims description 12
- 238000005245 sintering Methods 0.000 claims description 6
- UUAGAQFQZIEFAH-UHFFFAOYSA-N chlorotrifluoroethylene Chemical group FC(F)=C(F)Cl UUAGAQFQZIEFAH-UHFFFAOYSA-N 0.000 claims description 4
- 238000010583 slow cooling Methods 0.000 claims description 3
- 125000000816 ethylene group Chemical group [H]C([H])([*:1])C([H])([H])[*:2] 0.000 claims 1
- 238000000034 method Methods 0.000 claims 1
- 239000000126 substance Substances 0.000 abstract description 7
- 230000006866 deterioration Effects 0.000 abstract description 4
- 239000011230 binding agent Substances 0.000 abstract description 2
- 238000010030 laminating Methods 0.000 abstract description 2
- 239000012528 membrane Substances 0.000 abstract 2
- CHDVXKLFZBWKEN-UHFFFAOYSA-N C=C.F.F.F.Cl Chemical compound C=C.F.F.F.Cl CHDVXKLFZBWKEN-UHFFFAOYSA-N 0.000 abstract 1
- GJEPCLZVXSSTRW-UHFFFAOYSA-N F.F.F.Cl Chemical compound F.F.F.Cl GJEPCLZVXSSTRW-UHFFFAOYSA-N 0.000 abstract 1
- 239000002245 particle Substances 0.000 abstract 1
- NDVLTYZPCACLMA-UHFFFAOYSA-N silver oxide Chemical compound [O-2].[Ag+].[Ag+] NDVLTYZPCACLMA-UHFFFAOYSA-N 0.000 description 12
- 230000000694 effects Effects 0.000 description 6
- 229910001923 silver oxide Inorganic materials 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 3
- 239000002887 superconductor Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 241000276425 Xiphophorus maculatus Species 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 239000013543 active substance Substances 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- GPGMRSSBVJNWRA-UHFFFAOYSA-N hydrochloride hydrofluoride Chemical compound F.Cl GPGMRSSBVJNWRA-UHFFFAOYSA-N 0.000 description 1
- 238000005339 levitation Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000003607 modifier Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 230000009103 reabsorption Effects 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
- 238000001947 vapour-phase growth Methods 0.000 description 1
Classifications
-
- 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/60—Superconducting electric elements or equipment; Power systems integrating superconducting elements or equipment
Landscapes
- Containers, Films, And Cooling For Superconductive Devices (AREA)
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
- Superconductors And Manufacturing Methods Therefor (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は磁界遮断、磁気浮上に′用いる超電導板あるい
は超電導電線として用いる帯状超電導板に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a superconducting plate used for magnetic field interruption and magnetic levitation, or a strip-shaped superconducting plate used as a superconducting wire.
酸化物超電導体の実用形態のうち板状化については、ジ
ャパニーズ・ジャーナル・オプ・アプライド・フィジク
ス第２６１第７号、１９８７年７月、第Ｌ１１７２頁か
ら第Ｌ１１７３頁（Ｊａｐａｎｅｓｅ Ｊｏｕｒｎａｌ
ｏｆ Ａｐｐｌｉｅｄ ＰｈｙｓｉｃｓＶｏｌ、２６
．１４７． ｐｐｌ １７２−１１７３）Ｋ記され、電
融化については、アプライド・フィジクス・レター５１
（３）、１９８７年７月２０日、第２０３頁から第２０
４頁に、テープ化については日本金属学会会報第２６巻
第８号（１９８７）第８１８頁から第８１９頁に記され
ている。Among the practical forms of oxide superconductors, platy formation is described in the Japanese Journal of Applied Physics, No. 261, No. 7, July 1987, pages L1172 to L1173.
of Applied Physics Vol. 26
．． 147. ppl 172-1173) K, and regarding electrolysis, Applied Physics Letters 51
(3), July 20, 1987, pp. 203-20
4, and tape formation is described in Bulletin of the Japan Institute of Metals, Vol. 26, No. 8 (1987), pp. 818 to 819.
上記従来技術は基本的技術については述べているが表面
保護などの細かい事柄には触れてはいない。しかし、上
記文献を含む多くの文献が酸化物超電導物質の耐水性に
問題のあることを示唆している。Although the above-mentioned conventional technology describes basic technology, it does not touch on detailed matters such as surface protection. However, many documents including the above-mentioned document suggest that there are problems with the water resistance of oxide superconducting materials.
本発明の目的は、第１Ｋ磁界中での超電導不安定性を減
少し、第２に超電導材焼結時の化学的不安定性を改善し
、第３に化学的経年劣化を軽減することである。The purpose of the present invention is to reduce superconducting instability in 1K magnetic fields, secondly to improve chemical instability during sintering of superconducting materials, and thirdly to reduce chemical aging.
上記目的のうち磁界中での超電導不安定性については超
電導体と銀箔の交互積層により減少化が期待され、超電
導材焼結時の化学的不安定性については酸素雰囲気中で
の焼結により成分酸素の放出を抑制すると共に徐冷操作
により酸素再吸収による放出酸素の回収が容易となり、
化学的経年劣化については表面を３弗化塩化エチレン膜
にて覆うことにより耐水性など雰囲気耐性の向上が見込
まれて目的が達成される。Among the above objectives, superconducting instability in a magnetic field is expected to be reduced by alternately laminating superconductors and silver foil, and chemical instability during sintering of superconducting materials is reduced by sintering in an oxygen atmosphere. In addition to suppressing the release, the slow cooling operation makes it easier to recover the released oxygen through oxygen reabsorption.
Regarding chemical deterioration over time, by covering the surface with a trifluorochloroethylene film, it is expected that atmospheric resistance such as water resistance will be improved, and the objective will be achieved.
本発明の構成要素が有する作用について記す。 The effects of the constituent elements of the present invention will be described.
構造要素のうち、酸化された銀箔は（１）磁界中での超
電導不安定性を補償するシャント安定材として隣接する
超電導材が超電導性を失った時に即時に利用できる常電
導シャント回路となり、（２）超電導板（ｆ）製作時に
酸化物超電導材表面の酸素分圧を高めて超電導性を高め
る作用があり、（３）最外層にあって内部超電導材を防
護するなどの機能を有する。膜状化超電導材は（４）板
あるいは帯としての可焼性を高め、超電導膜１枚を銀箔
２枚で挾んだ構造では曲げ変形耐性を高める作用がある
。表面を覆った３弗化塩化エチレン膜は雰囲気中の水分
あるいは化学的活性物質から超電導材あるいは銀箔を逍
断・保護する作用を持つ。Among the structural elements, the oxidized silver foil (1) acts as a shunt stabilizer that compensates for superconducting instability in a magnetic field and becomes a normal-conducting shunt circuit that can be used immediately when the adjacent superconducting material loses its superconductivity; ) The superconducting plate (f) has the effect of increasing the oxygen partial pressure on the surface of the oxide superconducting material during production to enhance superconductivity, and (3) is the outermost layer and has functions such as protecting the internal superconducting material. The film-formed superconducting material has the effect of (4) increasing its scorchability as a plate or band, and increasing its resistance to bending deformation in a structure in which one superconducting film is sandwiched between two sheets of silver foil. The trifluorochloroethylene film covering the surface has the effect of blocking and protecting the superconducting material or silver foil from moisture or chemically active substances in the atmosphere.
以下、本発明の一実施例を第１図により説明する。第１
図は本発明に係る積層形超電導板の断面図を示し、銀箔
３枚、酸化物超電導膜２枚より構成した場合である。前
記銀箔は、例えば、銅（Ｃｕ）膜などの金属膜に、銀メ
ツキしたものでもよい。An embodiment of the present invention will be described below with reference to FIG. 1st
The figure shows a cross-sectional view of a laminated superconducting plate according to the present invention, which is composed of three silver foils and two oxide superconducting films. The silver foil may be, for example, a metal film such as a copper (Cu) film plated with silver.
図において、ＩＡ−ＩＢ・ＩＣは本来−枚の銀箔であっ
て夫々が酸化銀膜部・銀箔本体部・酸化銀膜部となって
おり、３Ａ・３Ｂ・３Ｃおよび５Ａ・５Ｂ・５Ｃも同様
に表面を酸化した銀箔である。In the figure, IA-IB/IC is originally one piece of silver foil, and each has a silver oxide film part, a silver foil body part, and a silver oxide film part, and 3A, 3B, 3C, and 5A, 5B, and 5C are the same. It is a silver foil with an oxidized surface.
２および４はＹＢａ、Ｃｕ３０ｙあるいはＹ８ｒＢａＣ
ｕ３０゜を主成分とし、若干のバインダおよび改質材を
加えた酸化物超電導粉（粒）を成形した膜であり、酸化
銀膜上に蒸着・気相成長・液中沈降して形成しても差し
支えない。このように酸化物超電導膜を酸化銀箔で挾む
形に積層して酸素雰囲気中で焼結・徐冷することにより
、ＩＡ〜５Ｃの積層された超電導板が形成される。しか
し酸化銀および銀ならびに酸化物超電導材は水、酸など
に侵され易く不安定であるので、それらの表面を保護す
る必要がある。本実施例では、化学的に安定で低温時に
も柔軟性を維持できる３弗化塩化エチレン保護膜６を形
成し化学的劣化の防止を図っている。2 and 4 are YBa, Cu30y or Y8rBaC
It is a film formed from oxide superconducting powder (granules) containing u30° as the main component and some binders and modifiers, and is formed by vapor deposition, vapor phase growth, and submerged precipitation on a silver oxide film. There is no problem. By stacking the oxide superconducting films in a manner such that they are sandwiched between silver oxide foils, sintering and slowly cooling them in an oxygen atmosphere, a laminated superconducting plate of IA to 5C is formed. However, since silver oxide and silver and oxide superconducting materials are unstable and easily attacked by water, acids, etc., it is necessary to protect their surfaces. In this embodiment, a trifluorochloroethylene protective film 6 which is chemically stable and maintains flexibility even at low temperatures is formed to prevent chemical deterioration.
本発明によれば、以上に述べたように酸化物超電導体の
化学的特性劣化を防止すると共に、交流磁界中の超電導
不安定性を銀箔によりシャント分流して安定化する効果
がある。According to the present invention, as described above, it is possible to prevent deterioration of the chemical properties of the oxide superconductor, and to stabilize superconducting instability in an alternating current magnetic field by shunting it with silver foil.
第１図は、本発明の一実施例である積層形超電導板を示
す断面図。
図中、ＩＡ、ＩＣ，３Ａ、３Ｃ，５Ａ、５Ｃ・・・酸化
銀膜、ＩＢ、３Ｂ、５Ｂ・・・銀箔、２．４・・・酸化
物超電導膜、６・・・３弗化塩化エテ／保護膜である。FIG. 1 is a sectional view showing a laminated superconducting plate which is an embodiment of the present invention. In the figure, IA, IC, 3A, 3C, 5A, 5C... silver oxide film, IB, 3B, 5B... silver foil, 2.4... oxide superconducting film, 6... 3 fluoride chloride Ete/protective film.
Claims (4)
により形成した膜を交互に積み重ね、温度５８０℃〜９
５０℃の乾燥酸素雰囲気において焼結した後に水分含量
の少ない露点温度０℃以下の酸素雰囲気中にて毎分２℃
以下の徐冷操作により２５０℃以下まで冷却し全表面を
３弗化塩化エチレン膜により覆って形成することを特徴
とする積層形超電導板の製法。1. Films formed from multiple silver foils oxidized on both sides and multiple oxide superconducting materials are stacked alternately at a temperature of 580°C to 90°C.
After sintering in a dry oxygen atmosphere at 50°C, 2°C per minute in an oxygen atmosphere with a low moisture content and a dew point temperature of 0°C or less.
1. A method for manufacturing a laminated superconducting plate, which comprises cooling the plate to 250° C. or lower by the following slow cooling operation, and covering the entire surface with a trifluorochlorinated ethylene film.
により形成した膜を交互に積み重ね、温度５８０℃〜９
５０℃の乾燥酸素雰囲気において焼結した後に水分含量
の少ない露点温度０℃以下の酸素雰囲気中にて毎分２℃
以下の徐冷操作により２５０℃以下まで冷却し全表面を
３弗化塩化エチレン膜により覆って形成されたことを特
徴とする積層形超電導板。2. Films formed from multiple silver foils oxidized on both sides and multiple oxide superconducting materials are stacked alternately at a temperature of 580°C to 90°C.
After sintering in a dry oxygen atmosphere at 50°C, 2°C per minute in an oxygen atmosphere with a low moisture content and a dew point temperature of 0°C or less.
A laminated superconducting plate characterized in that it is formed by cooling to 250° C. or lower by the following slow cooling operation and covering the entire surface with a trifluorochloroethylene film.
とを特徴とする特許請求の範囲第２項記載の積層形超電
導板。3. 3. The laminated superconducting plate according to claim 2, wherein the laminated superconducting plate has a band-like shape.
＿７を用いることを特徴とする特許請求の範囲第２項記
載の積層形超電導板。4. As a main component of the oxide superconducting material, YBa_2Cu_3O_7 or YSrBaCu_3O
The laminated superconducting plate according to claim 2, characterized in that _7 is used.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62266331A JPH01109612A (en) | 1987-10-23 | 1987-10-23 | Laminate type superconductive plate and its manufacture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62266331A JPH01109612A (en) | 1987-10-23 | 1987-10-23 | Laminate type superconductive plate and its manufacture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01109612A true JPH01109612A (en) | 1989-04-26 |
Family
ID=17429444
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62266331A Pending JPH01109612A (en) | 1987-10-23 | 1987-10-23 | Laminate type superconductive plate and its manufacture |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01109612A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01117396A (en) * | 1987-10-30 | 1989-05-10 | Seiko Epson Corp | Magnetic shielding material |
| JPH0213799U (en) * | 1988-07-08 | 1990-01-29 | ||
| WO2013187353A1 (en) * | 2012-06-11 | 2013-12-19 | 株式会社フジクラ | Oxide superconducting wire and superconducting coil |
| KR102173846B1 (en) * | 2020-09-02 | 2020-11-04 | 박상서 | Apparatus for manufacturing laminated shunt |
-
1987
- 1987-10-23 JP JP62266331A patent/JPH01109612A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01117396A (en) * | 1987-10-30 | 1989-05-10 | Seiko Epson Corp | Magnetic shielding material |
| JPH0213799U (en) * | 1988-07-08 | 1990-01-29 | ||
| WO2013187353A1 (en) * | 2012-06-11 | 2013-12-19 | 株式会社フジクラ | Oxide superconducting wire and superconducting coil |
| CN103733276A (en) * | 2012-06-11 | 2014-04-16 | 株式会社藤仓 | Oxide superconducting wire and superconducting coil |
| JP5501541B1 (en) * | 2012-06-11 | 2014-05-21 | 株式会社フジクラ | Oxide superconducting wire and superconducting coil |
| KR101404534B1 (en) * | 2012-06-11 | 2014-06-09 | 가부시키가이샤후지쿠라 | Oxide superconducting wire material and superconducting coil |
| US9418776B2 (en) | 2012-06-11 | 2016-08-16 | Fujikura Ltd. | Oxide superconductor wire and superconducting coil |
| KR102173846B1 (en) * | 2020-09-02 | 2020-11-04 | 박상서 | Apparatus for manufacturing laminated shunt |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| AU2006275564B2 (en) | Architecture for high temperature superconductor wire | |
| US4921833A (en) | Superconducting member | |
| US5151406A (en) | Laminated superconductor | |
| JP5244337B2 (en) | Tape-shaped oxide superconductor | |
| US20070032384A1 (en) | Structure for improved high critical current densities in YBCO coatings | |
| US5259885A (en) | Process for making ceramic/metal and ceramic/ceramic laminates by oxidation of a metal precursor | |
| JPH01109612A (en) | Laminate type superconductive plate and its manufacture | |
| WO2015029423A1 (en) | Oxide superconducting wire and method for producing oxide superconducting wire | |
| JP2523647B2 (en) | Metal oxide superconducting thin film | |
| JPH03153089A (en) | Tunnel junction element wherein compound oxide superconductive material is used | |
| WO2007094147A1 (en) | Process for producing superconducting thin-film material, superconducting equipment and superconducting thin-film material | |
| JP2567386B2 (en) | Superconducting conductor | |
| JP3361016B2 (en) | Superconducting member and manufacturing method thereof | |
| JP2809557B2 (en) | Copper oxide material | |
| JP2599387B2 (en) | Ceramic superconductor | |
| US6240620B1 (en) | Making of bismuth 2212 superconducting wire or tape | |
| JP5087447B2 (en) | Oxide superconducting wire and manufacturing method of oxide superconducting wire | |
| JP2585366B2 (en) | Oxide superconducting wire | |
| JP6262304B2 (en) | Manufacturing method of oxide superconducting wire | |
| JP3251093B2 (en) | Superconductor and method of manufacturing the same | |
| JP2785038B2 (en) | Manufacturing method of superconductor film | |
| JP2919955B2 (en) | Superconducting member manufacturing method | |
| JPH03252007A (en) | Oxide superconductor and manufacture thereof | |
| JPH01130420A (en) | Ceramic supercondoctor | |
| JPH0388716A (en) | Production of oxide superconducting thin film |