CH427308A - Process for joining graphite objects to one another or to objects made of other materials - Google Patents

Process for joining graphite objects to one another or to objects made of other materials

Info

Publication number
CH427308A
CH427308A CH1013762A CH1013762A CH427308A CH 427308 A CH427308 A CH 427308A CH 1013762 A CH1013762 A CH 1013762A CH 1013762 A CH1013762 A CH 1013762A CH 427308 A CH427308 A CH 427308A
Authority
CH
Switzerland
Prior art keywords
objects
weight
graphite
materials
another
Prior art date
Application number
CH1013762A
Other languages
German (de)
Inventor
Franciscus Knippenbe Wilhelmus
Huizing Albert
Original Assignee
Philips Nv
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 Philips Nv filed Critical Philips Nv
Publication of CH427308A publication Critical patent/CH427308A/en

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Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B7/00—Heating by electric discharge
    • H05B7/02—Details
    • H05B7/14—Arrangements or methods for connecting successive electrode sections
    • 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
    • B23K35/3013—Au 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
    • C04B37/003—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
    • 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
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C5/00—Alloys based on noble 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
    • C04B2237/02—Aspects relating to interlayers, e.g. used to join ceramic articles with other articles by heating
    • C04B2237/12—Metallic interlayers
    • C04B2237/125—Metallic interlayers based on noble metals, e.g. silver
    • 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
    • C04B2237/126—Metallic interlayers wherein the active component for bonding is not the largest fraction of the interlayer
    • 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
    • C04B2237/126—Metallic interlayers wherein the active component for bonding is not the largest fraction of the interlayer
    • C04B2237/127—The active component for bonding being a refractory metal
    • 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
    • C04B2237/704—Forming laminates or joined articles comprising layers of a specific, unusual thickness of one or more of the ceramic layers or articles
    • 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
    • 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
    • C04B2237/76—Forming laminates or joined articles comprising at least one member in the form other than a sheet or disc, e.g. two tubes or a tube and a sheet or disc
    • C04B2237/765—Forming laminates or joined articles comprising at least one member in the form other than a sheet or disc, e.g. two tubes or a tube and a sheet or disc at least one member being a tube
    • 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
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/25—Process efficiency

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Metallurgy (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Ceramic Products (AREA)
  • Vessels And Coating Films For Discharge Lamps (AREA)

Description

  

  Verfahren zum Verbinden von Graphitgegenständen miteinander  oder mit Gegenständen aus anderen     Materialien       Die     Erfindung        betrifft    ein     Verfahren    zum Ver  binden von Graphitgegenständen miteinander oder       reit    Gegenständen aus anderen Materialien durch  Löten.  



  Unter  Graphit  wird im nachfolenden nicht  nur .in der Graphitform kristallisierter Kohlenstoff,  sondern auch     Material        verstanden,    das     teilweise    ans  nicht kristallisiertem Kohlenstoff besteht,     wie    es zum       Beispiel    bei     Handelsprodukten    :der     Fall        sein    kann,       die,    mit      Elektrographit     bezeichnet werden.  



  Für manche     Anwendungen    kommen die mit     Hilfe     eines Leims auf der Basis organischer Stoffe erzielten  Verbindungen von Graphibgegenständen nicht in  Frage, da solche     Verbindungen    nur gegen     niedrigere     Temperaturen beständig sind.

   Da zur Zeit gas- und  flüssigkeitsdichte Graphibarten verfügbar sind, ist die  Erzielung dichter Verbindungen     erwünscht.        Mecha-          nische        Verbindungen,        zum    Beispiel Schrauben- oder       Klemmverbindungen,    sind     .in        diesem    Fall     nicht     brauchbar.  



  Weiterhin ist es bekannt, dass Verbindungen     zwi-          schen        Graphit        und        bestimmten    Metallen mit     Hilfe     eines geschmolzenen     Metallei        hergestellt        werden    kön  nen. Solche Verbindungen     weisen    im     allgemeinen     die obererwähnten Nachteile nicht oder in geringe  rem Masse auf.  



  So ist es bekannt, dass solche Verbindungen mit  Hilfe von Indium oder einer Indiumlegierung erzielt  werden können. Weiterhin ist es zum Beispiel be  kannt, dass Graphitkörper sich mit Aluminium mit       Hilfe    von Zinn verbinden lassen. Diese     Verbindungen     haben aber den Nachteil, dass Indium,     Indmumlegie-          rungen    und Zinn einen niedrigen Schmelzpunkt     auf-          weisen.     



  Bekannt ist auch die     Verwendung    höher     schmel-          zender        Metalle    oder     Legierungen,        zum        Beispiel    Lot         auf        der    Basis     eines    oder mehrerer der     Metalle    Kupfer,  Silber und Gold zum     Verbinden    von     Gegenständen     -aus Graphit     mit    Gegenständen, (die völlig oder wenig  stens an einer Oberfläche aus Titan,

   Zirkon oder       deren        Legierungen    bestehen. Zwar ergibt sich     auf          diese    Weise eine     verhältnismässig        hochschmelzende     Verbindung, aber die     Anwendung    beschränkt     sich     ,auf     Verbindungen    von Graphit mit den     Metallen     Titan und Zirkon.  



  Schliesslich ist es noch bekannt,     Verbindungen     von Graphit mit Metallen     mit        Hilfe    von     Oxyden     herzustellen. So     kann    zum     Beispiel    eine     Verbindung          zwischen    Eisen und     Graphit,durch        Erhitzung    -in einer       oxydierenden    Atmosphäre     erzielt    werden,

   wobei ent  standenes Eisenoxyd die Verbindung     herstellt.        Die     mechanische     Festigkeit        eines    solchen     Verbindung    .ist       verhältnismässig        gering.     



  Die     Erfindung    bezweckt, die     erwähnten        Nach-          ,teile        zu        vermeiden.     



  Nachdem Verfahren gemäss     oder    Erfindung wer  den Graphitgegenstände miteinander oder mit Gegen  ständen aus anderen     Materialien    durch     Löten,        ver-          bunden,    in :dem mit     einer        Legierung    von Gold     mit     ,einem Gehalt an Tantal und/oder Niob von wenig  stens 1 Gew. % im Vakuum oder mit einer     Edel-          gasatmosphäre    gelötet wird.  



       Legierungen    mit     einem    niedrigeren     Gehalt        -an     Tantal und/oder Niob ergeben eine unzulängliche       Benetzung    der zu     verbindenden        Oberflächen.     



  Die Anwendung eines Tantalgehaltes über etwa  25 Gew. % oder eines Niobgehaltes über etwa  10     Gew.%        bringt,den        Nachteil    mit     sich,        dass    die Le  gierungen einen zu hohen     Schmelzpunkt    für     eine          laichte        Verarbeitung    haben, oder spröde sind.  



  Die     Legierungen        mit        einem        Tantalgehalt        bis     25     Gew.%        und    solche mit     einem        Niobgehalt    bis      10 Gew.% haben einen Schmelzpunkt unter 1300  C  und sind duktil. Die Legierungen können dadurch  leicht in die Form von Draht oder Folie gebracht  werden, was beim Löten vorteilhaft     sein    kann.  



       Sehr        günstige    Ergebnisse     werden    mit Legierungen  erzielt, deren Tantalgehalt zwischen 5 und 10 Gew.%  liegt. Der Gehalt -an Niob wird vorzugsweise nicht  höher als etwa 5 Gew.% gewählt.  



  Die Legierungen von Gold mit Tontal und/oder  Niob benetzen beim Löten Oberflächen von Graphit  gegenständen besonders gut. Ausserdem werden die  verschiedenartigsten anderen Materialien, wie Quarz,  Keramik und Metalle, insbesondere Molybdän und  Wolfram, gut benetzt.  



       In.    allen diesen     Fällen        ergibt    sich eine     besonders     gut haftende Verbindung, die für Temperaturschwan  kungen wenig oder nicht empfindlich ist. Dies .hängt  möglicherweise mit der besonderen Duktilität der  betreffenden Legierungen zusammen, wodurch     Span-          nungen    infolge .abweichender Ausdehnungskoeffizien  ten der zu verbindenden Materialien und .der Le  gierung leicht ausgeglichen werden können.  



  <I>Beispiele</I>  1. Zwei Graphitröhren mit einem Inneren Durch  messer von 8     mm    und einem äusseren     Durchmesser     von 10 mm werden mit Hilfe einer Legierung von  95 Gew.% Gold und 5 Gew.% Tontal verlötet. Dazu  wird zwischen den Enden der Rohre .ein ringförmiges  Drahtstückchen der Legierung in der Stärke von  200 Mikron angebracht. Anschliessend wird das Lot  im Vakuum ,durch Hochfrequenzerhitzung auf etwa  1300  C zum     Schmelzen        gebracht.     



  2. Ein Graphitstab mit einem Durchmesser von  6 mm     wird    an     einem    Ende     .mit        Hilfe    .einer     Legierung     von 97 Gew.% Gold und 3 Gew. % Niob auf eine Wol  framplatte gelötet. Das Lot wird in Form einer kreis-    förmigen Folie mit einem Durchmesser von 10, mm  und einer Stärke von 150 Mikron zwischen dem Stab  und der Platte angebracht. Anschliessend erfolgt eine  Erhitzung auf etwa l300  C in einer Argonatmo  sphäre.  



  3. Ein Graphitrohr und ;ein aus Aluminium  oxyd     bestehendes        Keramikrohr    mit     Iden    Abmessun  gen wie im Beispiel 1 angegeben, werden mit     Hilfe     einer Legierung von 97 Gew. % Gold und 3 Gew. %  Tontal miteinander verbunden. Die Rohre werden  dazu an einem Ende derart konisch abgeschliffen, dass  sie über eine Länge von einigen Millimetern inein  anderpassen. Ein Folienstreifen in der Stärke von  150 Mikron der erwähnten Legierung wird zwischen  den Enden der Röhre angebracht, worauf im Vakuum  auf etwa 1300  C erhitzt wird.



  Method for joining graphite objects to one another or to objects made of other materials. The invention relates to a method for joining graphite objects to one another or riding objects made of other materials by soldering.



  In the following, graphite is understood to mean not only carbon crystallized in the graphite form, but also material that consists partly of non-crystallized carbon, as can be the case, for example, with commercial products that are referred to as electrographite.



  For some applications, the connections of graphite objects achieved with the aid of a glue based on organic substances are out of the question, since such connections are only resistant to lower temperatures.

   Since gas- and liquid-tight graphite types are currently available, it is desirable to achieve tight connections. Mechanical connections, for example screw or clamp connections, cannot be used in this case.



  It is also known that connections between graphite and certain metals can be produced with the aid of a molten metal. Such compounds generally do not have the abovementioned disadvantages or only to a minor extent.



  It is known that such compounds can be achieved with the aid of indium or an indium alloy. It is also known, for example, that graphite bodies can be connected to aluminum with the help of tin. However, these compounds have the disadvantage that indium, indium alloys and tin have a low melting point.



  It is also known to use higher-melting metals or alloys, for example solder based on one or more of the metals copper, silver and gold for connecting objects made of graphite with objects (which are completely or at least on a surface made of titanium ,

   Zircon or its alloys exist. Although this results in a relatively high-melting point connection, the application is limited to connections between graphite and the metals titanium and zirconium.



  Finally, it is also known to produce compounds between graphite and metals with the aid of oxides. For example, a connection between iron and graphite can be achieved by heating in an oxidizing atmosphere,

   whereby the iron oxide produced establishes the connection. The mechanical strength of such a connection is relatively low.



  The invention aims to avoid the disadvantages mentioned, parts.



  According to the method according to the invention or the invention, the graphite objects with each other or with objects made of other materials by soldering, connected in: with an alloy of gold with a content of tantalum and / or niobium of at least 1% by weight in a vacuum or is soldered with a noble gas atmosphere.



       Alloys with a lower content of tantalum and / or niobium result in inadequate wetting of the surfaces to be connected.



  The use of a tantalum content above about 25% by weight or a niobium content above about 10% by weight has the disadvantage that the alloys have a melting point that is too high for easy processing or are brittle.



  The alloys with a tantalum content of up to 25% by weight and those with a niobium content of up to 10% by weight have a melting point below 1300 C and are ductile. The alloys can easily be brought into the form of wire or foil, which can be advantageous when soldering.



       Very favorable results are achieved with alloys with a tantalum content between 5 and 10% by weight. The content of niobium is preferably not selected to be higher than about 5% by weight.



  The alloys of gold with tonal and / or niobium wet surfaces of graphite objects particularly well when soldering. In addition, a wide variety of other materials, such as quartz, ceramics and metals, especially molybdenum and tungsten, are well wetted.



       In. All of these cases result in a particularly well-adhering connection that is little or not sensitive to temperature fluctuations. This is possibly due to the particular ductility of the alloys in question, as a result of which stresses due to different expansion coefficients of the materials to be connected and the alloy can be easily compensated.



  <I> Examples </I> 1. Two graphite tubes with an inner diameter of 8 mm and an outer diameter of 10 mm are soldered with the aid of an alloy of 95% by weight gold and 5% by weight Tontal. For this purpose, a ring-shaped piece of wire of the alloy with a thickness of 200 microns is attached between the ends of the tubes. The solder is then melted in a vacuum by high-frequency heating to around 1300 C.



  2. A graphite rod with a diameter of 6 mm is soldered at one end to a tungsten plate using an alloy of 97% by weight gold and 3% by weight niobium. The solder is placed in the form of a circular foil with a diameter of 10 mm and a thickness of 150 microns between the rod and the plate. This is followed by heating to around 1300 C in an argon atmosphere.



  3. A graphite tube and a ceramic tube made of aluminum oxide with dimensions as specified in Example 1 are connected to one another with the aid of an alloy of 97% by weight of gold and 3% by weight of Tontal. For this purpose, the tubes are ground conically at one end so that they fit into one another over a length of a few millimeters. A foil strip 150 microns thick of the alloy mentioned is placed between the ends of the tube, followed by heating to about 1300 ° C. in a vacuum.

Claims (1)

PATENTANSPRUCH Verfahren zum Verbinden von Graphitgegen ständen miteinander oder mit Gegenständen aus an- dren Materialien durch Löten, dadurch gekennzeich- net, dass mit einer Legierung von Gold mit einem Gehalt an Tontal und/oder Niob von wenigstens 1 Gew.% im Vakuum oder in einer Edelgasatmo sphäre gelötet wird. PATENT CLAIM A method for connecting graphite objects with one another or with objects made of other materials by soldering, characterized in that with an alloy of gold with a content of tonal and / or niobium of at least 1% by weight in a vacuum or in a Noble gas atmosphere is soldered. UNTERANSPRÜCHE 1. Verfahren nach Patentanspruch, dadurch ge- kennzeichnet, dass .mit einer Legierung von Gold mit höchstens 25 Gew. % Tanbal, vorzugsweise 5 bis 10 Gew. % Tontal, gelötet wird. 2. SUBClaims 1. Method according to patent claim, characterized in that soldering is carried out using an alloy of gold with a maximum of 25% by weight of tanbal, preferably 5 to 10% by weight of tonal. 2. Verfahren nach Patentanspruch, dadurch ge, kennzeichnet, (dass mit einer Legierung von Gold mit höchstens 10 Gew.% Niob, vorzugsweise 1 bis 5 Gew.% Niab, gelötet wird. Method according to patent claim, characterized in that soldering is carried out with an alloy of gold with a maximum of 10% by weight of niobium, preferably 1 to 5% by weight of niabium.
CH1013762A 1961-08-29 1962-08-27 Process for joining graphite objects to one another or to objects made of other materials CH427308A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL268735 1961-08-29

Publications (1)

Publication Number Publication Date
CH427308A true CH427308A (en) 1966-12-31

Family

ID=19753258

Family Applications (2)

Application Number Title Priority Date Filing Date
CH1013762A CH427308A (en) 1961-08-29 1962-08-27 Process for joining graphite objects to one another or to objects made of other materials
CH1013662A CH445267A (en) 1961-08-29 1962-08-27 Process for creating a bond between a diamond and metal

Family Applications After (1)

Application Number Title Priority Date Filing Date
CH1013662A CH445267A (en) 1961-08-29 1962-08-27 Process for creating a bond between a diamond and metal

Country Status (5)

Country Link
US (1) US3196536A (en)
AT (1) AT248834B (en)
BE (2) BE621794A (en)
CH (2) CH427308A (en)
GB (1) GB937947A (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1355568A (en) * 1962-12-17 1964-03-20 Snecma Process for soldering two parts, at least one of which is in graphite
DE1671658B1 (en) * 1966-03-25 1971-05-13 Siemens Ag Application of the process for the production of a firmly adhering coating consisting essentially of metal carbide of at least one of the metals from group IVa, Va and VIa on the surface of carbon bodies for the production of solderable coatings for the production of vacuum-tight metal-carbon-
US3425116A (en) * 1966-08-10 1969-02-04 Us Navy Brazing method
US3725719A (en) * 1970-11-30 1973-04-03 Varian Associates Method and aritcle for inhibiting gaseous permeation and corrosion of material
US3813759A (en) * 1971-09-09 1974-06-04 English Electric Co Ltd Method of brazing
US4000026A (en) * 1973-03-12 1976-12-28 Union Carbide Corporation Method and cement for bonding carbon articles
ZA775521B (en) * 1977-09-14 1979-01-31 De Beers Ind Diamond Wire drawing die composites
US4180700A (en) * 1978-03-13 1979-12-25 Medtronic, Inc. Alloy composition and brazing therewith, particularly for _ceramic-metal seals in electrical feedthroughs
US5853661A (en) * 1994-07-05 1998-12-29 Cendres Et Metaux Sa High gold content bio--compatible dental alloy
US5972157A (en) * 1995-11-20 1999-10-26 Alliedsignal Inc. Joining of rough carbon-carbon composites with high joint strength
FR2751640B1 (en) * 1996-07-23 1998-08-28 Commissariat Energie Atomique COMPOSITION AND METHOD FOR REACTIVE BRAZING OF CERAMIC MATERIALS CONTAINING ALUMINUM

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2739375A (en) * 1952-09-12 1956-03-27 Handy & Harman Joining of non-metallic materials and brazing filler rods therefor
US2979813A (en) * 1956-09-28 1961-04-18 Horizons Inc Joining of graphite members

Also Published As

Publication number Publication date
US3196536A (en) 1965-07-27
AT248834B (en) 1966-08-25
BE621794A (en) 1900-01-01
CH445267A (en) 1967-10-15
BE621795A (en) 1900-01-01
GB937947A (en) 1963-09-25

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