JPH0410507A - oxide superconducting coil - Google Patents
oxide superconducting coilInfo
- Publication number
- JPH0410507A JPH0410507A JP11315590A JP11315590A JPH0410507A JP H0410507 A JPH0410507 A JP H0410507A JP 11315590 A JP11315590 A JP 11315590A JP 11315590 A JP11315590 A JP 11315590A JP H0410507 A JPH0410507 A JP H0410507A
- Authority
- JP
- Japan
- Prior art keywords
- coil
- oxide superconducting
- wire
- tape
- oxide
- 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
- 239000000919 ceramic Substances 0.000 claims description 13
- 238000009413 insulation Methods 0.000 claims description 3
- 238000004804 winding Methods 0.000 claims description 2
- 239000002887 superconductor Substances 0.000 description 10
- 239000000835 fiber Substances 0.000 description 8
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000010949 copper Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 2
- 239000012212 insulator Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 229910052709 silver Inorganic materials 0.000 description 2
- 239000004332 silver Substances 0.000 description 2
- 238000005245 sintering Methods 0.000 description 2
- 229910001316 Ag alloy Inorganic materials 0.000 description 1
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 229910001020 Au alloy Inorganic materials 0.000 description 1
- 229910014454 Ca-Cu Inorganic materials 0.000 description 1
- 229920003043 Cellulose fiber Polymers 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- 239000003082 abrasive agent Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 239000007767 bonding agent Substances 0.000 description 1
- 229920002301 cellulose acetate Polymers 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- KZHJGOXRZJKJNY-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Si]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O KZHJGOXRZJKJNY-UHFFFAOYSA-N 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000003353 gold alloy Substances 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 229910052863 mullite Inorganic materials 0.000 description 1
- 150000004767 nitrides Chemical class 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
Landscapes
- Superconductors And Manufacturing Methods Therefor (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
［産業上の利用分野］
本発明は、液体窒素を冷媒として使用可能な酸化物超電
導コイル、特にその絶縁構造に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an oxide superconducting coil that can use liquid nitrogen as a refrigerant, and particularly to its insulation structure.
［従来の技術］
超電導体をコイル化する場合、在来の金属系化合物超電
導体ではＷ＆Ｒ（ワインド・アンド・リアクト）法ある
いはＲ＆Ｗ （リアクト・アンド・ワインド）法的手法
が採られているが、酸化物超電導体は歪みに弱いことか
らＷ＆Ｒ法的手法が適していると考えられる。事実、そ
のような手法で酸化物超電導コイルを制作した事例かみ
られる。[Prior art] When coiling a superconductor, the W&R (wind and react) method or the R&W (react and wind) legal method is adopted for conventional metal-based compound superconductors. Since oxide superconductors are susceptible to distortion, the W&R method is considered suitable. In fact, there are examples of oxide superconducting coils being produced using such a method.
しかし、この場合の試作は初歩的なもので、多層化した
絶縁構造とはなっていない。However, the prototype in this case is rudimentary and does not have a multilayered insulation structure.
一方、酸化物超電導体の線材としては、銀被覆テープ状
線材で短尺線材の７７に、零磁場での臨海電流密度（Ｊ
ｃ）は、Ｙ −Ｂａ −Ｃｕ −０系で２０００−４
０００Ａ／ｃシ、Ｂｉ −Ｐｂ−３ｒ −Ｃａ −Ｃｕ
−０系で１００００〜２００００ Ａ／ｃ♂、ＴＩ
−１３ａ −Ｃａ −Ｃｕ −０系て１００００〜１５
０００ Ａ ／ ｃｉ等が報告されており、比較的高特
性か得られている。On the other hand, as a wire of an oxide superconductor, a silver-coated tape-shaped wire with a critical current density (J
c) is Y-Ba-Cu-0 system and 2000-4
000A/c, Bi-Pb-3r-Ca-Cu
-0 series 10000~20000 A/c♂, TI
-13a -Ca -Cu -0 series 10000~15
000 A/ci, etc., and relatively high characteristics have been obtained.
［発明か航法しようとする課′８］
金属系超電導線材をコイル化する場合の熱処理温度は、
通常６００〜８００°Ｃ程度であるのに対し、酸化物超
電導線材をコイル化する場合は８００〜１０００℃で焼
結熱処理か行われる。従って、酸化物超電導体の熱処理
温度は、金属系超電導体のそれに比べて２００〜４００
℃程度高く、金属系超電導コイルに利用されていたよう
な絶縁材料を使用することはできない。[Invention or Navigation Section '8] The heat treatment temperature when coiling metallic superconducting wire is
Usually, the temperature is about 600 to 800°C, but when oxide superconducting wire is coiled, sintering heat treatment is performed at 800 to 1000°C. Therefore, the heat treatment temperature for oxide superconductors is 200 to 400 degrees higher than that for metallic superconductors.
℃, making it impossible to use insulating materials such as those used in metal-based superconducting coils.
本発明の目的は、前記した従来技術の欠点を解消し、コ
イル化した後も酸化物超電導線材の特性を出すことので
きる酸化物超電導コイルを提供することにある。SUMMARY OF THE INVENTION An object of the present invention is to provide an oxide superconducting coil that overcomes the drawbacks of the prior art described above and can exhibit the characteristics of an oxide superconducting wire even after being coiled.
［課題を解決するための手段］
本発明の要旨は、コイルの絶縁体として、セラミック紙
を用いたことにある。[Means for Solving the Problems] The gist of the present invention lies in the use of ceramic paper as the insulator of the coil.
このセラミック紙は通常セラミックベーパーと称される
もので、例えばアルミナ繊維、アルミナシリケート繊維
、ムライト繊維、窒化アルミナ繊維等のセラミック繊維
を、例えばセルロース繊維、ポリビニールアルコール繊
維、ポリエステル繊維、酢酸セルロース繊維等のバイン
ダーで抄紙したもの、セラミックの原料や粉末をバイン
ダーで抄紙したもの等を使用することかできる。このセ
ラミック紙は可撓性を有すると共に、それ自体１０００
℃以上の耐熱性を有し、コイル巻きした後に酸化物超電
導体の焼結熱処理により焼成することかできる。This ceramic paper is usually called ceramic vapor, and is made by combining ceramic fibers such as alumina fibers, alumina silicate fibers, mullite fibers, and alumina nitride fibers with cellulose fibers, polyvinyl alcohol fibers, polyester fibers, cellulose acetate fibers, etc. It is possible to use paper made from ceramic raw materials or powder using a binder, etc. This ceramic paper is flexible and has a resistance of 1000
It has heat resistance of ℃ or more, and can be fired by sintering heat treatment of oxide superconductor after coiling.
なお、コイルに用いる酸化物超電導線材は、例え（ｆ金
、金合金、銀、銀合金、銅、銅合金、アルミ、アルミ合
金秀の導電性金属及びそれらの組合せ等をもって酸化物
超電導体を被覆したもので、その構造としては単芯、多
芯のいずれであっても差し支えない。In addition, the oxide superconducting wire material used for the coil may be made by coating the oxide superconductor with conductive metals such as gold, gold alloys, silver, silver alloys, copper, copper alloys, aluminum, aluminum alloys, and combinations thereof. The structure can be either single-core or multi-core.
また、酸化物超電導体としても特に特定するものでない
が、液体窒素温度（７７Ｋ）以上の臨海温度（Ｔｃ）を
有するＹ系、Ｂｊ系、ＴＩ系等の祠料を用いることか望
ましい。In addition, the oxide superconductor is not particularly specified, but it is desirable to use a Y-based, Bj-based, TI-based abrasive material having a critical temperature (Tc) higher than the liquid nitrogen temperature (77 K).
［実 施 例］
図面を参照して本発明の例を説明すれば、第１図は、外
径２５關の鎖管からなるボビン１の外周に、厚さ ０．
１ｍｍのアルミナペーパー３を挾み混んだ状態で、後述
する酸化物超電導テープ状線材２を３３ターンコイル巻
きしてパンケーキ状コイルとしたもので、テープ状線材
２は次のようにして制作したものである。[Embodiment] An example of the present invention will be described with reference to the drawings. In FIG. 1, a bobbin 1 consisting of a chain pipe with an outer diameter of 25 mm has a thickness of 0.5 mm on the outer periphery.
The oxide superconducting tape-shaped wire material 2 described later was wound into a 33-turn coil with a 1 mm alumina paper 3 sandwiched therebetween to form a pancake-shaped coil.The tape-shaped wire material 2 was produced as follows. It is something.
すなわち、］’ｌ −［３ａ／ Ｓｒ −Ｃａ −Ｃｕ
−０系の超電導微粉末を外径６關、肉厚１■の鎖管中
に充填し、それを外径２■までスウエージャーにより減
面塑性加工した後、厚さ Ｏ、ｌ ｍｍまで圧延加工し
てテープ状の線材としたものである。That is, ]'l -[3a/ Sr -Ca -Cu
-0 series superconducting fine powder was filled into a chain tube with an outer diameter of 6 mm and a wall thickness of 1 mm, which was subjected to surface reduction plastic processing with a swager to an outer diameter of 2 mm, and then rolled to a thickness of 0.1 mm. It is processed into a tape-shaped wire rod.
このテープ状線材２を用いたパンケーキ状コイルはその
後、８７０℃で３時間、酸素雰囲気中で焼結熱処理した
。The pancake-shaped coil using this tape-shaped wire 2 was then heat-sintered at 870° C. for 3 hours in an oxygen atmosphere.
このようにして得られたパンケーキ状コイルの主な仕様
は第１表の通りである。The main specifications of the pancake-shaped coil thus obtained are shown in Table 1.
第 １ 表
このコイルを評価するために、７７Ｋにおいてスウィー
ブ速度の影響を調査し、４．２Ｋにおいて外部磁場の影
響を調査した。Table 1 To evaluate this coil, the effect of sweep speed was investigated at 77K and the effect of external magnetic field was investigated at 4.2K.
その結果、臨海電流値（Ｉｃ）の基準として全長でｌＯ
μＶの電圧発生とし、７７にで中心磁場３０Ｇ１最大磁
場６ｏｃ 、 ４．２にで中心磁場７５Ｇ１最大磁場
１５０Ｇを発生し、酸化物超電導体のコイル化か可能で
あることを確認した。As a result, as a standard for the critical current value (Ic), lO
A voltage of μV was generated, a central magnetic field of 30 G1 and a maximum magnetic field of 6 oc at 77, and a central magnetic field of 75 G1 and a maximum magnetic field of 150 G at 4.2, and it was confirmed that it was possible to form an oxide superconductor into a coil.
第２図は超電導線材としてより大きなＩｃを必要とする
場合の例の横断面を示し、テープ状線材２を複数枚重ね
、それを線材としてパンケーキ状態のコイルとしたもの
である。FIG. 2 shows a cross section of an example in which a larger Ic is required as a superconducting wire, in which a plurality of tape-shaped wires 2 are stacked and used as a wire to form a pancake-like coil.
また、第３図はテープ状線材２を複数枚重ねてコイル巻
きする場合の別の例を示すもので、テブ状線材２の束に
アルミナペーパー３を螺旋状に巻き付け、それを線材と
してコイルに巻くようにしている。このようにすれば、
テープ状線材２を複数枚重ねてコイル巻きすることが困
難な場合、例えばソレノイド状コイルにするような場合
に有利である。Fig. 3 shows another example of stacking a plurality of tape-shaped wire rods 2 and winding them into a coil.Alumina paper 3 is spirally wound around a bundle of tape-shaped wire rods 2, and this is used as a wire to be coiled. I try to wrap it around. If you do this,
This is advantageous when it is difficult to stack a plurality of tape-shaped wire rods 2 and wind them into a coil, such as when forming a solenoid-shaped coil.
第１図や第２図の例のようにセラミック紙３を挾み込む
場合、セラミック紙３をあらかじめ適当な接合剤を用い
て線材２に付着させておいても差し支えない。When inserting the ceramic paper 3 as in the example shown in FIGS. 1 and 2, the ceramic paper 3 may be attached to the wire rod 2 in advance using a suitable bonding agent.
［発明の効果］
以上のように本発明によれば、絶縁体としてセラミック
紙を用いることにより、健全で高特性な酸化物超電導線
材によるコイル化か可能となり、その実用的価値は極め
て大である。[Effects of the Invention] As described above, according to the present invention, by using ceramic paper as an insulator, it is possible to form a coil using a sound and high-performance oxide superconducting wire, and its practical value is extremely large. .
第１図は本発明に係る超電導コイルの一実施例の概念を
示す縦断面図、第２図及び第３図は本発明に係る超電導
コイルの別の例を示す説明図である。
１：ボビン、２：テープ状線材、
３：セラミック紙。
第２図
第３図FIG. 1 is a vertical sectional view showing the concept of one embodiment of a superconducting coil according to the present invention, and FIGS. 2 and 3 are explanatory diagrams showing other examples of the superconducting coil according to the present invention. 1: Bobbin, 2: Tape-shaped wire, 3: Ceramic paper. Figure 2 Figure 3
Claims (3)
、セラミック紙をもって絶縁してなることを特徴とする
酸化物超電導コイル。(1) An oxide superconducting coil formed by winding an oxide superconducting wire, characterized in that it is insulated with ceramic paper.
る前記第１項記載のコイル。(2) The coil according to item 1 above, which is formed by adding ceramic paper to the wire to insulate the layers.
してなる前記第１項記載のコイル。(3) The coil according to item 1 above, which is formed by wrapping a non-woven ceramic paper around a wire for insulation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11315590A JPH0410507A (en) | 1990-04-27 | 1990-04-27 | oxide superconducting coil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11315590A JPH0410507A (en) | 1990-04-27 | 1990-04-27 | oxide superconducting coil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0410507A true JPH0410507A (en) | 1992-01-14 |
Family
ID=14604961
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11315590A Pending JPH0410507A (en) | 1990-04-27 | 1990-04-27 | oxide superconducting coil |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0410507A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0583640A1 (en) * | 1992-07-23 | 1994-02-23 | Superconducting Sensor Laboratory | Magnetic pickup coil |
| US8809543B2 (en) | 2010-09-14 | 2014-08-19 | Ricoh Company, Ltd. | Electrophotographic photoreceptor, electrophotographic image forming method, electrophotographic image forming apparatus, and process cartridge for electrophotographic image forming apparatus |
-
1990
- 1990-04-27 JP JP11315590A patent/JPH0410507A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0583640A1 (en) * | 1992-07-23 | 1994-02-23 | Superconducting Sensor Laboratory | Magnetic pickup coil |
| US8809543B2 (en) | 2010-09-14 | 2014-08-19 | Ricoh Company, Ltd. | Electrophotographic photoreceptor, electrophotographic image forming method, electrophotographic image forming apparatus, and process cartridge for electrophotographic image forming apparatus |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| AU683133B2 (en) | Method of making superconducting wind-and-react coils | |
| EP0423354B2 (en) | Oxide superconductor wire, method of producing the same and article produced therefrom | |
| JP3159921B2 (en) | Manufacturing method of slender superconductor | |
| JP2986871B2 (en) | Oxide superconductor, oxide superconducting wire and superconducting coil | |
| JP3474602B2 (en) | Superconducting conductor | |
| JPH04106906A (en) | High temperature superconducting coil | |
| JP3328941B2 (en) | Superconducting conductor | |
| JP2002008459A (en) | Superconducting cable | |
| JP3001312B2 (en) | Oxide superconducting coil | |
| JPH04291702A (en) | High temperature superconducting coil | |
| JPS63236218A (en) | Superconductive wire | |
| US5758405A (en) | Consumable mandrel for superconducting magnetic coils | |
| US6387525B1 (en) | Self insulating substrate tape | |
| JPS63284721A (en) | superconducting cable | |
| JPH05211013A (en) | Oxide superconducting conductor and method for manufacturing the same | |
| JPH01144516A (en) | Optical composite coaxial cable | |
| JPH08298208A (en) | High temperature superconducting conductor winding | |
| JPH02249204A (en) | Manufacture of oxide superconducting coil | |
| JP3088833B2 (en) | Oxide superconductor for current leads | |
| JP3032771B2 (en) | Superconducting coil manufacturing method | |
| JPH0644833A (en) | Ceramics superconducting conductor | |
| JPH04292808A (en) | Multicore superconductive wire | |
| JPS63310510A (en) | Superconductive wire | |
| JPH0676650A (en) | Oxide superconducting wire material and superconducting wire made therefrom | |
| JPH0191403A (en) | Manufacture of oxide superconducting coil |