JPS585483B2 - Chiyodendousen - Google Patents
ChiyodendousenInfo
- Publication number
- JPS585483B2 JPS585483B2 JP50099792A JP9979275A JPS585483B2 JP S585483 B2 JPS585483 B2 JP S585483B2 JP 50099792 A JP50099792 A JP 50099792A JP 9979275 A JP9979275 A JP 9979275A JP S585483 B2 JPS585483 B2 JP S585483B2
- Authority
- JP
- Japan
- Prior art keywords
- core material
- superconducting
- al2o3
- stainless steel
- tape
- 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
- 239000011162 core material Substances 0.000 claims description 16
- 239000000463 material Substances 0.000 claims description 13
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 7
- 229910052593 corundum Inorganic materials 0.000 claims description 7
- 229910001220 stainless steel Inorganic materials 0.000 claims description 7
- 239000010935 stainless steel Substances 0.000 claims description 7
- 229910001845 yogo sapphire Inorganic materials 0.000 claims description 7
- 238000001704 evaporation Methods 0.000 description 6
- 230000008020 evaporation Effects 0.000 description 6
- 239000010408 film Substances 0.000 description 5
- 239000011248 coating agent Substances 0.000 description 4
- 238000000576 coating method Methods 0.000 description 4
- 239000010409 thin film Substances 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 239000000523 sample Substances 0.000 description 2
- 238000007738 vacuum evaporation Methods 0.000 description 2
- 238000005422 blasting Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003487 electrochemical reaction Methods 0.000 description 1
- 238000010894 electron beam technology Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000004804 winding 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
- Superconductor Devices And Manufacturing Methods Thereof (AREA)
- Superconductors And Manufacturing Methods Therefor (AREA)
Description
【発明の詳細な説明】
本発明は超電導材としてＮｂ−Ｇｅを使用する式の超電
導線に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a superconducting wire using Nb-Ge as a superconducting material.
近時極めて優れた超電導材料として、Ｎｂ−Ｇｅが開発
されて来たが、この場合該材料はＡｌ２Ｏ３等の絶縁性
を有する物質の板状体を芯材としその表面に真空蒸着に
より作るを一般としたもので、かかるものでは該芯材が
機械的に脆弱で柔軟性に欠けるため、例えばコイル巻き
に作ることが出来ず、かくてそのままでは実用に適しな
い欠点を伴う。Recently, Nb-Ge has been developed as an extremely excellent superconducting material, but in this case, this material is generally made by vacuum evaporation on the surface of a plate-shaped core of an insulating substance such as Al2O3. However, in such a core material, the core material is mechanically weak and lacks flexibility, so it cannot be made into a coil, for example, and thus has the drawback that it is not suitable for practical use as it is.
かかる不都合を防止すべく芯材として例えばステンレス
鋼その他の金属材料を使用することが考えられるが、か
かるものでは該Ｎｂ−Ｇｅが化学的に比較的不安定であ
るので使用中該金属材料と電気化学的に反応してその組
成が変化し特性が劣化する不都合を免れない。In order to prevent such inconveniences, it is conceivable to use stainless steel or other metal materials as the core material, but in such materials, the Nb-Ge is chemically relatively unstable, so there is no contact with the metal material during use. There is an unavoidable disadvantage that the composition changes due to chemical reactions and the characteristics deteriorate.
本発明はかかる不都合を無くす超電導線を得るこことを
目的としたもので、ステンレス鋼から成る線状或いはテ
ープ状の芯材の表面にＡｌ２Ｏ３から成る下地被膜を形
成し、更にその表面に、Ｎｂ−Ｇｅ超電導材層を形成し
たことを特徴とする。The purpose of the present invention is to obtain a superconducting wire that eliminates such inconveniences, by forming a base film made of Al2O3 on the surface of a linear or tape-like core material made of stainless steel, and further coating the surface with Nb. -It is characterized by forming a Ge superconducting material layer.
本発明の実施例を別紙図面に付説明する。Embodiments of the present invention will be described with reference to the attached drawings.
第１図は線状の場合の１実施例を示し、同図で１はステ
ンレス鋼、２は該芯材１の表面に形成したＡｌ２Ｏ３か
ら成る下地被膜、３は更にその表面に形成したＮｂ−Ｇ
ｅ超電導材層、４は熱伝導率の高い金属例えばＣｕ、Ａ
ｌのような外周被膜を示す。FIG. 1 shows an example of a linear case, in which 1 is stainless steel, 2 is an undercoating made of Al2O3 formed on the surface of the core material 1, and 3 is a Nb- G
e superconducting material layer 4 is a metal with high thermal conductivity such as Cu, A
It shows a peripheral coating like l.
次に製造法を説明すると、線径的１０μの線状あるいは
厚さ５μのテープ状の芯材１の表面に、イオンブレーテ
ィングにより、Ａｌ２Ｏ３の下地被膜２を付着させる。Next, the manufacturing method will be described. An Al2O3 undercoat 2 is adhered to the surface of a core material 1 in the form of a wire with a diameter of 10μ or a tape with a thickness of 5μ by ion blasting.
このイオンブレーティングは一般のイオンブレーティン
グ法である。This ion brating is a general ion brating method.
これを詳述すると、先ずＡＩの蒸発源を下方に、芯材１
を上方に、プローブをこれらの中間に夫々配設した真空
処理室を用意し、該蒸発源のＡＩを電子ビームにより蒸
発させると共にその蒸発途中の部分に０２ ガスを導入
して０２ガス分圧を５×１０−４〜５×１０Ｔｏｒｒに
する。To explain this in detail, first, place the AI evaporation source downward, and
A vacuum processing chamber is prepared in which the AI in the evaporation source is evaporated by an electron beam, and the 02 gas is introduced into the part in the middle of evaporation to raise the 02 gas partial pressure. Set the pressure to 5 x 10-4 to 5 x 10 Torr.
そしてこのとき前記プローブに５０〜３００Ｖの電圧を
印加するとＡＩ蒸気と０２ガスとが反応してＡｌ２Ｏ３
となり、これが芯材１の表面に付着して肉厚３μの下地
被膜２が形成される。At this time, when a voltage of 50 to 300 V is applied to the probe, the AI vapor and the 02 gas react, resulting in Al2O3
This adheres to the surface of the core material 1 to form a base film 2 with a thickness of 3 μm.
このイオンブレーティングによれば被蒸着物に数μ単位
の薄膜を形成することができ、しかも蒸着物を高エネル
ギーで被蒸着物に射突させ、強固に結合させることがで
きて、形成された薄膜は付着性に優れていることが一般
に知られており、薄膜形成後、芯材を屈曲させても、そ
の薄膜は剥離せず、かつ芯材の柔軟性を保持することが
できる。According to this ion blating, it is possible to form a thin film of several micrometers on the object to be evaporated, and moreover, the evaporation material can be bombarded with high energy to the object to be evaporated, and it can be strongly bonded. It is generally known that thin films have excellent adhesion, and even if the core material is bent after the thin film is formed, the thin film will not peel off and the flexibility of the core material can be maintained.
次に蒸発源にＮｂ−Ｇｅを使用し、Ｏ２ガスの導入を停
止して真空処理室内の真空度を１Ｏ−５Ｔｏｒｒ程度に
すると共に前記プローブを零電圧にして真空蒸着する。Next, Nb--Ge is used as an evaporation source, the introduction of O2 gas is stopped, the degree of vacuum in the vacuum processing chamber is set to about 1 O-5 Torr, and the voltage of the probe is set to zero to carry out vacuum evaporation.
かくして蒸発したＮｂ−Ｇｅ蒸気が付着して肉厚５μの
超電導材層３を形成する。The Nb-Ge vapor thus evaporated adheres to form a superconducting material layer 3 having a thickness of 5 μm.
その後蒸発源にＣｕを使用し、前述と同様の条件下で最
後の肉厚１０μの外周被膜４を形成する。Thereafter, using Cu as an evaporation source, a final outer peripheral coating 4 having a thickness of 10 μm is formed under the same conditions as described above.
芯材１は第１図示のように線状とし、或は第２図示のよ
うにテープ状とする等任意であり、例えばテープ状の場
合これを５×１０−３ｍｍ程度の肉厚とし、これに下地
被膜２を例えば２〜３×１０−３ｍｍ程度の比較的肉薄
に作る。The core material 1 may be in the form of a line as shown in the first figure, or in the form of a tape as shown in the second figure. The base film 2 is made relatively thin, for example, about 2 to 3 x 10 -3 mm.
尚芯材１がテープ状の場合必要に応じこれに第３図示の
ようにスリット５を複数条に施すもので、かくて該スリ
ット５はテープの見掛は上の幅を減少して作動の不安定
性を無くすべく有効である。If the core material 1 is in the form of a tape, a plurality of slits 5 are provided thereon as shown in the third figure, as required. This is effective in eliminating instability.
尚この場合前記した下地被膜２はスリット間を流れる迂
回電流を遮断すべく有効に作用する。In this case, the base film 2 described above acts effectively to block the detour current flowing between the slits.
このように本発明によるときは、ステンレス鋼から成る
線状あるいはテープ状の芯材とその外周を覆うＮｂ−Ｇ
ｅ超電導材層との間にＡｌ２Ｏ３から成る下地被膜を介
在させたので、ステンレス鋼から成る芯材に直接Ｎｂ−
Ｇｅ超電導材層を施したものと同程度の機械的強度と柔
軟性を保ちつつ該ステンレス鋼と該Ｎｂ−Ｇｅ超電導材
との電気化学的な反応を阻止し得られ、その反応により
生ずる特性劣化を防止することができる。In this way, according to the present invention, a linear or tape-shaped core material made of stainless steel and an Nb-G
Since a base film made of Al2O3 was interposed between the superconducting material layer and the core material made of stainless steel, Nb-
It is possible to prevent the electrochemical reaction between the stainless steel and the Nb-Ge superconducting material while maintaining the same mechanical strength and flexibility as those coated with a Ge superconducting material layer, and to prevent property deterioration caused by that reaction. can be prevented.
結局本発明によるときは全体として機械的強度が高く柔
軟性を有して例えばコイル巻きする等の作業が可能な実
用的且つ特性劣化を生じない極めて優れた超電導線が得
られる効果を有する。As a result, the present invention has the effect of providing an extremely excellent superconducting wire that has high mechanical strength and flexibility as a whole, is practical for operations such as coil winding, and does not suffer from characteristic deterioration.
第１図は本発明の超電導線の１例の断面図、第２図は他
の１例の斜面図、第３図はその変形例の斜面図である。
１……芯材、２……下地被膜、３……超電導材層。FIG. 1 is a sectional view of one example of the superconducting wire of the present invention, FIG. 2 is a perspective view of another example, and FIG. 3 is a perspective view of a modification thereof. 1... core material, 2... base coating, 3... superconducting material layer.
Claims (1)
表面に、Ａｌ２Ｏ３から成る下地被膜を形成し、更にそ
の表面に、Ｎｂ−Ｇｅ超電導材層を形成したことを特徴
とする超電導線。1. A superconducting wire characterized in that a base film made of Al2O3 is formed on the surface of a linear or tape-shaped core material made of stainless steel, and an Nb-Ge superconducting material layer is further formed on the surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP50099792A JPS585483B2 (en) | 1975-08-19 | 1975-08-19 | Chiyodendousen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP50099792A JPS585483B2 (en) | 1975-08-19 | 1975-08-19 | Chiyodendousen |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5224095A JPS5224095A (en) | 1977-02-23 |
| JPS585483B2 true JPS585483B2 (en) | 1983-01-31 |
Family
ID=14256760
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP50099792A Expired JPS585483B2 (en) | 1975-08-19 | 1975-08-19 | Chiyodendousen |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS585483B2 (en) |
-
1975
- 1975-08-19 JP JP50099792A patent/JPS585483B2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5224095A (en) | 1977-02-23 |
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