CH674722A5 - Iron-manganese-copper brazing alloy foil - for brazing ceramics together or to metals - Google Patents

Iron-manganese-copper brazing alloy foil - for brazing ceramics together or to metals Download PDF

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Publication number
CH674722A5
CH674722A5 CH193388A CH193388A CH674722A5 CH 674722 A5 CH674722 A5 CH 674722A5 CH 193388 A CH193388 A CH 193388A CH 193388 A CH193388 A CH 193388A CH 674722 A5 CH674722 A5 CH 674722A5
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Switzerland
Prior art keywords
brazing
iron
metals
manganese
atom
Prior art date
Application number
CH193388A
Other languages
German (de)
Inventor
Volker Prof Dr Franzen
Kurt Dr Gampp
Georg Heinzen
Original Assignee
Lonza Ag
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Filing date
Publication date
Application filed by Lonza Ag filed Critical Lonza Ag
Priority to CH193388A priority Critical patent/CH674722A5/en
Publication of CH674722A5 publication Critical patent/CH674722A5/en

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    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B37/00—Joining burned ceramic articles with other burned ceramic articles or other articles by heating
    • C04B37/003—Joining burned ceramic articles with other burned ceramic articles or other articles by heating by means of an interlayer consisting of a combination of materials selected from glass, or ceramic material with metals, metal oxides or metal salts
    • C04B37/006—Joining burned ceramic articles with other burned ceramic articles or other articles by heating by means of an interlayer consisting of a combination of materials selected from glass, or ceramic material with metals, metal oxides or metal salts consisting of metals or metal salts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
    • B23K35/02—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape
    • B23K35/0222—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape for use in soldering, brazing
    • B23K35/0233—Sheets, foils
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
    • B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
    • B23K35/24—Selection of soldering or welding materials proper
    • B23K35/30—Selection of soldering or welding materials proper with the principal constituent melting at less than 1550 degrees C
    • B23K35/302—Cu as the principal constituent
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B37/00—Joining burned ceramic articles with other burned ceramic articles or other articles by heating
    • C04B37/02—Joining burned ceramic articles with other burned ceramic articles or other articles by heating with metallic articles
    • C04B37/023—Joining burned ceramic articles with other burned ceramic articles or other articles by heating with metallic articles characterised by the interlayer used
    • C04B37/026—Joining burned ceramic articles with other burned ceramic articles or other articles by heating with metallic articles characterised by the interlayer used consisting of metals or metal salts
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/65—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes
    • C04B2235/658—Atmosphere during thermal treatment
    • C04B2235/6581—Total pressure below 1 atmosphere, e.g. vacuum
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2237/00—Aspects relating to ceramic laminates or to joining of ceramic articles with other articles by heating
    • C04B2237/02—Aspects relating to interlayers, e.g. used to join ceramic articles with other articles by heating
    • C04B2237/12—Metallic interlayers
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2237/00—Aspects relating to ceramic laminates or to joining of ceramic articles with other articles by heating
    • C04B2237/02—Aspects relating to interlayers, e.g. used to join ceramic articles with other articles by heating
    • C04B2237/12—Metallic interlayers
    • C04B2237/123—Metallic interlayers based on iron group metals, e.g. steel
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2237/00—Aspects relating to ceramic laminates or to joining of ceramic articles with other articles by heating
    • C04B2237/02—Aspects relating to interlayers, e.g. used to join ceramic articles with other articles by heating
    • C04B2237/12—Metallic interlayers
    • C04B2237/124—Metallic interlayers based on copper
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2237/00—Aspects relating to ceramic laminates or to joining of ceramic articles with other articles by heating
    • C04B2237/30—Composition of layers of ceramic laminates or of ceramic or metallic articles to be joined by heating, e.g. Si substrates
    • C04B2237/32—Ceramic
    • C04B2237/36—Non-oxidic
    • C04B2237/365—Silicon carbide
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2237/00—Aspects relating to ceramic laminates or to joining of ceramic articles with other articles by heating
    • C04B2237/30—Composition of layers of ceramic laminates or of ceramic or metallic articles to be joined by heating, e.g. Si substrates
    • C04B2237/40—Metallic
    • C04B2237/403—Refractory metals
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2237/00—Aspects relating to ceramic laminates or to joining of ceramic articles with other articles by heating
    • C04B2237/30—Composition of layers of ceramic laminates or of ceramic or metallic articles to be joined by heating, e.g. Si substrates
    • C04B2237/40—Metallic
    • C04B2237/405—Iron metal group, e.g. Co or Ni
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2237/00—Aspects relating to ceramic laminates or to joining of ceramic articles with other articles by heating
    • C04B2237/30—Composition of layers of ceramic laminates or of ceramic or metallic articles to be joined by heating, e.g. Si substrates
    • C04B2237/40—Metallic
    • C04B2237/405—Iron metal group, e.g. Co or Ni
    • C04B2237/406—Iron, e.g. steel
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2237/00—Aspects relating to ceramic laminates or to joining of ceramic articles with other articles by heating
    • C04B2237/50—Processing aspects relating to ceramic laminates or to the joining of ceramic articles with other articles by heating
    • C04B2237/52—Pre-treatment of the joining surfaces, e.g. cleaning, machining
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2237/00—Aspects relating to ceramic laminates or to joining of ceramic articles with other articles by heating
    • C04B2237/50—Processing aspects relating to ceramic laminates or to the joining of ceramic articles with other articles by heating
    • C04B2237/70—Forming laminates or joined articles comprising layers of a specific, unusual thickness
    • C04B2237/708—Forming laminates or joined articles comprising layers of a specific, unusual thickness of one or more of the interlayers

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Ceramic Products (AREA)
  • Laminated Bodies (AREA)

Abstract

A novel homogeneous ductile brazing foil has an at least partially amorphous structure and a compsn. of 0-40 at %Fe, 20-50 (pref. 20-40) at % Mn and 10-80 (pref. 20-50) at % Cu. The brazing alloy is pref. Fe30Cu44Mn26 or Fe20Mn30Cu50. The foil is generally produced by melt spinning and is 20-120 (pref. 40-90) microns thick. USE/ADVANTAGE - Claimed use of the brazing foil is for brazing ceramic (esp. silicon carbide) parts together or to metals (esp. Ni, Fe, Ti or their alloys). The foil is used at brazing temps. of 900-1300 deg.C and produces chemically resistant, durable brazed joints.

Description

1 1

CH 674 722 A5 CH 674 722 A5

2 2nd

Beschreibung description

Die Erfindung betrifft eine Lötfolie aus einer amorphen oder teilamorphen Eisen-Mangan-Kupfer-Legierung zum Hartlöten von Keramik mit Keramik oder Keramik mit Metallen. The invention relates to a solder foil made of an amorphous or partially amorphous iron-manganese-copper alloy for brazing ceramic with ceramic or ceramic with metals.

Für Hochtemperaturanwendungen sowohl von Metallen als auch bei Keramik ist das Hartlöten ein Fügeverfahren mit zunehmender Bedeutung. For high temperature applications of both metals and ceramics, brazing is an increasingly important joining method.

Die gefügten Werkstoffe haben den Vorteil, dass Grundwerkstoffe mit unterschiedlichen Eigenschaften kombiniert werden können. Der Zweck des Fügens von Metall mit Keramik kann beispielsweise ein Verschieissschutz, eine Wärmedämmung, ein Korrosionsschutz, eine elektrische Isolation, eine vakuumdichte Durchführung oder dergleichen sein. Die Fügetechnik durch Hartlöten ist auch für die Verbindung von Keramikteilen, gleicher oder verschiedener chemischer Zusammensetzung, von Bedeutung; insbesondere, wenn komplizierte Körper aus einfach geformten Teilen zusammengefügt werden sollen. The joined materials have the advantage that base materials with different properties can be combined. The purpose of joining metal with ceramic can be, for example, wear protection, thermal insulation, corrosion protection, electrical insulation, a vacuum-tight bushing or the like. The brazing technique is also important for the connection of ceramic parts of the same or different chemical composition; especially when complex bodies are to be assembled from simply shaped parts.

Besonders wichtig für eine dauerhafte Verbindung der Teile ist, dass diese Teile vom Lot gut benetzt werden. It is particularly important for a permanent connection of the parts that these parts are well wetted by the solder.

Biegsame Folien sind vielfach einfacher zu handhaben und besser zu dosieren als Pulver oder Pasten. Flexible films are often easier to handle and better to dose than powders or pastes.

Wegen ihrer hohen Duktilität eignen sich für das Hartlöten besonders amorphe oder teilamorphe Folien, die durch rasches Abschrecken aus der Schmelze erhalten werden. Because of their high ductility, amorphous or partially amorphous foils, which are obtained by rapid quenching from the melt, are particularly suitable for brazing.

Diese Folien bestehen aus nur einer, aber sehr homogener Schicht. These foils consist of only one, but very homogeneous layer.

Für eine gute Benetzung ist notwendig, dass jede oxidische Verunreinigung an der Oberfläche der Lötmittel vermieden wird, daher wird das Hartlöten mit den erwähnten Folien vorzugsweise im Vakuum oder unter Schutzgas ausgeführt. For good wetting it is necessary that any oxidic contamination on the surface of the solder is avoided, so the brazing with the foils mentioned is preferably carried out in a vacuum or under a protective gas.

Aufgabe der vorliegenden Erfindung ist es, neue Lötfolien aus einer amorphen oder teilamorphen Ei-sen-Mangan-Kupfer-Legierung gemäss Patentanspruch 1 aufzuzeigen, die in besonderer Weise geeignet sind, Keramikteile untereinander oder Keramikteile mit Metalien durch Hartlöten zu verbinden. The object of the present invention is to show new solder foils made of an amorphous or partially amorphous iron-manganese-copper alloy according to claim 1, which are particularly suitable for connecting ceramic parts to one another or ceramic parts with metals by brazing.

Die Eisen-Mangan-Kupfer-Legierung hat erfin-dungsgemäss eine Zusammensetzung von 0 bis 40 Atom% Eisen, 20 bis 50 Atom% Mangan und 10 bis 80 Atom% Kupfer. According to the invention, the iron-manganese-copper alloy has a composition of 0 to 40 atom% iron, 20 to 50 atom% manganese and 10 to 80 atom% copper.

Vorteilhaft gelangen Legierungen mit Zusammensetzungen von 0 bis 40 Atom% Fe, 20 bis 40 Atom% Mn und 20 bis 50 Atom% Cu zum Einsatz. Alloys with compositions of 0 to 40 atom% Fe, 20 to 40 atom% Mn and 20 to 50 atom% Cu are advantageously used.

Besonders bevorzugte Legierungen sind Fe3oCu44Mn26 und Fe2oMn3oCuso- Particularly preferred alloys are Fe3oCu44Mn26 and Fe2oMn3oCuso-

Wichtige Voraussetzung ist, dass die verwendeten Legierungsbestandteile Eisen, Mangan und Kupfer für die Herstellung der amorphen bzw. teilamorphen Folien eine Reinheit von mindestens 99,5% aufweisen. Ausserdem dürfen keine oxidischen Verunreinigungen vorhanden sein. An important prerequisite is that the alloy components iron, manganese and copper used for the production of the amorphous or partially amorphous foils have a purity of at least 99.5%. In addition, there must be no oxidic impurities.

Da die Löttemperaturen für die erfindungsgemäs-sen Legierungen in einem Bereich von 900 bis 1300°C liegen, sind die entsprechenden Lötfolien in besonderer Weise zum Hartlöten von Keramik oder von Keramik mit Metall geeignet. Since the soldering temperatures for the alloys according to the invention are in a range from 900 to 1300 ° C., the corresponding solder foils are particularly suitable for brazing ceramic or ceramic with metal.

Solche Keramikteile können aus Aluminiumoxiden, Zirkonoxiden, Magnesiumoxiden oder Siliciumcarbi-den bzw. deren Mischungen bestehen. Such ceramic parts can consist of aluminum oxides, zirconium oxides, magnesium oxides or silicon carbides or mixtures thereof.

Bevorzugt werden die Fe-Mn-Cu-Lötfolien zum Löten von Siliciumcarbidkeramik verwendet. The Fe-Mn-Cu solder foils are preferably used for soldering silicon carbide ceramics.

Geeignete Keramik-Metallverbindungen bestehen aus Aluminiumoxiden, Magnesiumoxiden, Zirkonoxiden oder Siliciumcarbiden als Keramikkomponente und Nickel, Eisen, Titan oder deren Legierungen als Metallkomponente. Suitable ceramic-metal compounds consist of aluminum oxides, magnesium oxides, zirconium oxides or silicon carbides as the ceramic component and nickel, iron, titanium or their alloys as the metal component.

Bevorzugt wird die erfindungsgemässe Lötfolie für Verbindungen von Siliciumcarbid mit den genannten Metallen eingesetzt. The solder foil according to the invention is preferably used for connections of silicon carbide with the metals mentioned.

Die Herstellung der erfindungsgemässen Lötfolien erfolgt durch Abschrecken der Schmelze der genannten Legierung mit einer Kühlrate von mindestens 105°C/s. Dabei handelt es sich um Techniken, dieln der Herstellung von glasartigen Metallen verbreitet sind. The solder foils according to the invention are produced by quenching the melt of the alloy mentioned at a cooling rate of at least 105 ° C./s. These are techniques that are common in the manufacture of glass-like metals.

Zur Herstellung der erfindungsgemässen Folien wird zweckmässig das Schmelzspinnverfahren herangezogen, wo das schmelzflüssige Metall auf einem schnell rotierenden Kupferzylinder, vorzugsweise in einer Schutzgasatmosphäre, abgeschreckt und als Band/Folie abgezogen wird. To produce the films according to the invention, the melt spinning process is expediently used, where the molten metal is quenched on a rapidly rotating copper cylinder, preferably in a protective gas atmosphere, and drawn off as a strip / film.

Unter diesen Bedingungen hergestellte Folien weisen amorphe oder teilamorphe Struktur und eine hohe Duktilität auf und sind in hohem Masse homogen. Films produced under these conditions have an amorphous or partially amorphous structure and a high ductility and are highly homogeneous.

Die Eisen-Mangan-Kupfer-Legierungen der vorliegenden Erfindung müssen, um dem Einsatz als Lötfolie zu genügen, mindestens teilweise amorph sein. The iron-manganese-copper alloys of the present invention must be at least partially amorphous in order to be used as a solder foil.

Die Dicke der erfindungsgemässen Fe-Mn-Cu-Folien beträgt zweckmässig zwischen 20 und 120 um, vorzugsweise 40 und 90 um. The thickness of the Fe-Mn-Cu foils according to the invention is expediently between 20 and 120 μm, preferably 40 and 90 μm.

Beispiele Examples

Durch Aufbringen einer Metallschmelze (Zusammensetzung in folgenden Beispielen angegeben) auf eine mit einer Umdrehungsgeschwindigkeit von 30 m/s sich bewegende Kupfertrommel, unter Helium als Schutzgas und einem Unterdruck von ca. 0,8 bar, wurden amorphe Eisen-Mangan-Kupfer-Bänder mit einer Dicke von 60 um und einer Breite von 20 mm hergestellt. By applying a molten metal (composition given in the following examples) to a copper drum moving at a rotation speed of 30 m / s, with helium as protective gas and a negative pressure of approx. 0.8 bar, amorphous iron-manganese-copper strips were formed 60 µm in thickness and 20 mm in width.

Die folgende Tabelle zeigt die Zusammensetzung von erfindungsgemässen Lötfolien. The following table shows the composition of solder foils according to the invention.

Beispiel example

Fe Fe

Mn Mn

Cu Cu

Atom% Atom%

Atom% Atom%

Atom% Atom%

1 1

30 30th

26 26

44 44

2 2nd

20 20th

30 30th

50 50

Beispiel 3 Example 3

Die zu verbindenden Oberflächen eines Silicium-carbidtestkörpers der Masse 10x10x6 mm und eines Nickeltestkörpers wurden mit Ethanol entfettet und gesäubert. Zwischen die Oberflächen wurde eine Fe3oMn26Cu44-Lötfolie einer Dicke von 60 um eingefügt. The surfaces to be joined of a silicon carbide test specimen measuring 10x10x6 mm and a nickel test specimen were degreased with ethanol and cleaned. An Fe3oMn26Cu44 solder foil 60 µm thick was inserted between the surfaces.

5 5

10 10th

15 15

20 20th

25 25th

30 30th

35 35

40 40

45 45

50 50

55 55

60 60

65 65

2 2nd

3 3rd

CH 674 722 A5 CH 674 722 A5

Die Lötung wurde durchgeführt in einem induktiv beheizten Hochvakuumofen bei einem Druck von 10-5 mbar, einer Temperatur von 1200°C über eine Dauer von 30 min. The soldering was carried out in an inductively heated high-vacuum oven at a pressure of 10-5 mbar, a temperature of 1200 ° C. over a period of 30 minutes.

Es wurde eine chemische widerstandsfähige, sehr dauerhafte Lötverbindung erhalten. A chemical resistant, very durable solder joint was obtained.

Claims (6)

PatentansprücheClaims 1. Homogene duktile Lötfolie mit mindestens teilweise amorpher Struktur und einer Legierungszusammensetzung von 0 bis 40 Atom% Eisen, 20 bis 50 Atom% Mangan und 10 bis 80 Atom% Kupfer.1. Homogeneous ductile solder foil with at least partially amorphous structure and an alloy composition of 0 to 40 atom% iron, 20 to 50 atom% manganese and 10 to 80 atom% copper. 2. Lötfolie nach Patentanspruch 1 mit einer Legierungszusammensetzung von 0 bis 40 Atom% Eisen, 20 bis 40 Atom% Mangan und 20 bis 50 Atom% Kupfer.2. Solder foil according to claim 1 with an alloy composition of 0 to 40 atom% iron, 20 to 40 atom% manganese and 20 to 50 atom% copper. 3. Lötfolie nach Patentanspruch 1 oder 2, dadurch gekennzeichnet, dass sie eine Dicke von 20 bis 120 (im aufweist.3. Solder foil according to claim 1 or 2, characterized in that it has a thickness of 20 to 120 (in. 4. Verwendung einer Lötfolie nach Patentanspruch 1 zum Hartlöten von Keramikteilen untereinander und Keramikteilen mit Metallen.4. Use of a solder foil according to claim 1 for brazing ceramic parts with each other and ceramic parts with metals. 5. Verwendung einer Lötfolie nach Patentanspruch 4 zum Hartlöten von Keramikteilen aus Silici-umcarbid.5. Use of a solder foil according to claim 4 for brazing ceramic parts made of silicon carbide. 6. Verwendung einer Lötfolie nach Patentanspruch 4 zum Hartlöten von Keramikteilen aus Silici-umcarbid mit Metallen aus der Reihe Nickel, Eisen oder Titan oder deren Legierungen.6. Use of a solder foil according to claim 4 for brazing ceramic parts made of silicon carbide with metals from the series nickel, iron or titanium or their alloys. 55 1010th 1515 2020th 2525th 3030th 3535 4040 4545 5050 5555 6060 6565 33rd
CH193388A 1988-05-20 1988-05-20 Iron-manganese-copper brazing alloy foil - for brazing ceramics together or to metals CH674722A5 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CH193388A CH674722A5 (en) 1988-05-20 1988-05-20 Iron-manganese-copper brazing alloy foil - for brazing ceramics together or to metals

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH193388A CH674722A5 (en) 1988-05-20 1988-05-20 Iron-manganese-copper brazing alloy foil - for brazing ceramics together or to metals

Publications (1)

Publication Number Publication Date
CH674722A5 true CH674722A5 (en) 1990-07-13

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Country Status (1)

Country Link
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