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DE1272263B - Application of the process for the production of thin wires by drawing them out in the production of superconductors - Google Patents

Application of the process for the production of thin wires by drawing them out in the production of superconductors

Info

Publication number
DE1272263B
DE1272263B DEP1272A DE1272263A DE1272263B DE 1272263 B DE1272263 B DE 1272263B DE P1272 A DEP1272 A DE P1272A DE 1272263 A DE1272263 A DE 1272263A DE 1272263 B DE1272263 B DE 1272263B
Authority
DE
Germany
Prior art keywords
production
superconductors
thin wires
application
connections
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
Application number
DEP1272A
Other languages
German (de)
Inventor
Dr Heinrich Winter
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Battelle Institut eV
Original Assignee
Battelle Institut eV
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Battelle Institut eV filed Critical Battelle Institut eV
Priority to DEP1272A priority Critical patent/DE1272263B/en
Publication of DE1272263B publication Critical patent/DE1272263B/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00—Manufacture of metal sheets, rods, wire, tubes, profiles or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/04—Manufacture of metal sheets, rods, wire, tubes, profiles or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of rods or wire
    • B21C37/047—Manufacture of metal sheets, rods, wire, tubes, profiles or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of rods or wire of fine 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
    • 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
    • H10N60/0184—Manufacture or treatment of devices comprising intermetallic compounds of type A-15, e.g. Nb3Sn

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)

Description

Anwendung des Verfahrens zur Herstellung dünner Drähte durch Ausziehen bei der Herstellung von Supraleitern Die Supraleiter mit den höchsten Sprungtemperaturen und der geringsten Empfindlichkeit gegenüber starken magnetischen Feldern gehören fast ausnahmslos zu der Klasse der intermetallischen Verbindungen mit ß-Wolfram (A15)-Struktur. Sie besitzen eine hohe Schmelztemperatur um etwa 2000° C und sind außerordentlich spröde.Application of the process of making thin wires by drawing them out in the manufacture of superconductors The superconductors with the highest transition temperatures and the least sensitive to strong magnetic fields almost without exception to the class of intermetallic compounds with ß-tungsten (A15) structure. They have a high melting temperature of around 2000 ° C and are extremely brittle.

Es ist daher nicht möglich, auf dem üblichen Weg, z. B. durch Schmieden, Walzen und Drahtziehen, zu band- oder drahtförmigen Produkten aus diesen intermetallischen Verbindungen zu gelangen.It is therefore not possible in the usual way, e.g. B. by forging, Rolling and wire drawing, to strip or wire-shaped products made of these intermetallic Connections to arrive.

Man hat sich bisher damit beholfen, Bänder aus diesen Materialien durch Aufdampfen ihrer Komponenten auf Trägerfolien, z. B. aus Kupfer, herzustellen und durch anschließendes Aufheizen die gewünschten Verbindungen entstehen zu lassen.So far this has been used to make tapes made of these materials by vapor deposition of their components on carrier films, e.g. B. made of copper and by subsequent heating to create the desired connections.

Dieses Verfahren hat jedoch Nachteile, da man stets auf eine Trägerfolie angewiesen ist und die genaue und homogene Zusammensetzung nur schwer erzielbar ist.However, this method has disadvantages, since it is always on a carrier film is dependent and the exact and homogeneous composition is difficult to achieve is.

Es ist bekannt, daß sich dünne Drähte aus Metallen und Legierungen dadurch herstellen lassen, daß man diese im festen Zustand in Glas- oder Quarzröhrchen einfüllt und dann durch Ausziehen dieser Röhrchen zu einer Kapillare zu einem dünnen Draht gelangt.It is known that thin wires are made from metals and alloys can be produced by placing them in the solid state in glass or quartz tubes and then by pulling this tube out to a capillary to a thin one Wire arrives.

Bisher konnte dieses relativ einfache Verfahren aber nicht zur Herstellung supraleitender Drähte aus intermetallischen Verbindungen mit ,ß-W-Struktur herangezogen werden, da - selbst bei Benutzung von Quarzröhrchen - der Schmelzpunkt dieser intermetallischen Verbindungen noch zu hoch war und es zudem zu höchst unerwünschten Reaktionen des Quarzes bei hohen Temperaturen mit den intermetallischen Verbindungen kommt.So far, however, this relatively simple process has not been able to be used for production superconducting wires made of intermetallic compounds with, ß-W structure are used because - even when using quartz tubes - the melting point of these intermetallic tubes Connections was still too high and there were also highly undesirable reactions of the Quartz comes with the intermetallic compounds at high temperatures.

Die Aufgabe der Erfindung ist es daher, dieses Verfahren auch für die Herstellung supraleitender Drähte anwendbar zu machen, ohne daß dabei Reaktionen zwischen Quarz und dem Drahtwerkstoff auftreten können.The object of the invention is therefore to use this method for to make the production of superconducting wires applicable without causing reactions can occur between quartz and the wire material.

Es wurde nunmehr überraschenderweise gefunden, daß sich supraleitende Verbindungen auf der Basis von Vanadium mit den Elementen Silicium und/oder Gallium sowohl hinsichtlich ihrer Schmelztemperatur als auch ihrer chemischen Eigenschaften bei hohen Temperaturen zur Herstellung von dünnen Drähten nach dem oben beschriebenen Verfahren besonders eignen, ohne daß sich unerwünschte Reaktionen zwischen dem Quarz und diesen Verbindungen auch bei den geforderten hohen Temperaturen abspielen. So weist z. B. die Verbindung V;"Si",7Ga",3 eine Sprungtemperatur von etwa 15° K und einen Schmelzpunkt von etwa 1800° C auf. Beim Aufheizen der Quarzröhrchen treten keine unerwünschten Reaktionen mit dem Inhalt auf.It has now surprisingly been found that superconducting Compounds based on vanadium with the elements silicon and / or gallium both in terms of their melting temperature and their chemical properties at high temperatures for the production of thin wires according to the above Processes particularly suitable without causing undesirable reactions between the quartz and play these compounds at the required high temperatures. So shows z. B. the compound V; "Si", 7Ga ", 3 a transition temperature of about 15 ° K and a melting point of about 1800 ° C. Step when heating the quartz tubes no adverse reactions with the content.

Claims (3)

Patentansprüche: 1. Verwendung des Verfahrens zur Herstellung dünner Drähte durch Ausziehen von bis zum Schmelzintervall erhitzten intermetallischen Verbindungen bei der Herstellung supraleitender Drähte aus Verbindungen auf der Basis von Vanadium mit Silicium und/oder Gallium. Claims: 1. Use of the method for producing thinner Wires by pulling intermetallic heated up to the melting interval Connections in the manufacture of superconducting wires from connections on the Based on vanadium with silicon and / or gallium. 2. Verwendung des Verfahrens nach Anspruch 1, bei einer Verbindung aus V@Si"7Ga"s. 2. Using the method according to Claim 1, in the case of a compound of V @ Si "7Ga" s. 3. Verwendung des Verfahrens nach Anspruch 1, bei einer Verwendung aus V.Ga. In Betracht gezogene Druckschriften: USA.-Patentschrift Nr. 1793 529.3. Using the method according to Claim 1, when used from V.Ga. Considered publications: U.S. Patent No. 1793,529.
DEP1272A 1967-09-09 1967-09-09 Application of the process for the production of thin wires by drawing them out in the production of superconductors Pending DE1272263B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEP1272A DE1272263B (en) 1967-09-09 1967-09-09 Application of the process for the production of thin wires by drawing them out in the production of superconductors

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEP1272A DE1272263B (en) 1967-09-09 1967-09-09 Application of the process for the production of thin wires by drawing them out in the production of superconductors

Publications (1)

Publication Number Publication Date
DE1272263B true DE1272263B (en) 1968-07-11

Family

ID=5661835

Family Applications (1)

Application Number Title Priority Date Filing Date
DEP1272A Pending DE1272263B (en) 1967-09-09 1967-09-09 Application of the process for the production of thin wires by drawing them out in the production of superconductors

Country Status (1)

Country Link
DE (1) DE1272263B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4353744A (en) * 1981-06-30 1982-10-12 Union Carbide Corporation Process for producing a vanadium silicon alloy

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1793529A (en) * 1928-01-04 1931-02-24 Baker & Co Inc Process and apparatus for making filaments

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1793529A (en) * 1928-01-04 1931-02-24 Baker & Co Inc Process and apparatus for making filaments

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4353744A (en) * 1981-06-30 1982-10-12 Union Carbide Corporation Process for producing a vanadium silicon alloy

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