DE727062C - Process for the vacuum-tight connection of metal objects with ceramic bodies - Google Patents

Process for the vacuum-tight connection of metal objects with ceramic bodies

Info

Publication number
DE727062C
DE727062C DEA80746D DEA0080746D DE727062C DE 727062 C DE727062 C DE 727062C DE A80746 D DEA80746 D DE A80746D DE A0080746 D DEA0080746 D DE A0080746D DE 727062 C DE727062 C DE 727062C
Authority
DE
Germany
Prior art keywords
vacuum
ceramic
metal
tight connection
metal objects
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
Application number
DEA80746D
Other languages
German (de)
Inventor
Dipl-Ing Guenther Dobke
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.)
AEG AG
Original Assignee
AEG AG
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 AEG AG filed Critical AEG AG
Priority to DEA80746D priority Critical patent/DE727062C/en
Application granted granted Critical
Publication of DE727062C publication Critical patent/DE727062C/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • C04B37/021—Joining burned ceramic articles with other burned ceramic articles or other articles by heating with metallic articles in a direct manner, e.g. direct copper bonding [DCB]
    • 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
    • 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
    • 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
    • C04B2237/02—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
    • C04B2237/30—Composition of layers of ceramic laminates or of ceramic or metallic articles to be joined by heating, e.g. Si substrates
    • C04B2237/32—Ceramic
    • C04B2237/34—Oxidic
    • C04B2237/341—Silica or silicates
    • 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
    • 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
    • C04B2237/60—Forming at the joining interface or in the joining layer specific reaction phases or zones, e.g. diffusion of reactive species from the interlayer to the substrate or from a substrate to the joining interface, carbide forming at the joining interface

Description

Verfahren zum vakuumdichten Verbinden von Metallgegenständen mit keramischen Körpern Bei den bekannten vakuumdichten. Verbindungen zwischen Metall und Keramik wird entweder eine Metallmanschette mittels eines Glasflusses mit dem Keramikkörper verbunden oder die Keramikoberfläche zunächst metallisiert und dann. an diese Metallfläche die Metallmanschette in der üblichen Weise angelötet. Nach ieinem manderen Verfahren wird die Keramikoberfläche zunächst mit einem Glasfluß versehen, auf den Metallteilchen aufgesintert werden. An diese Metallteilchen wird die Metallmanschette mittels Hart oder Weichlötung befestigt. Es ist auch bekannt, Metallgegenstände mit keramischen Körpern derart zu verbinden, daß das als Bindemittel benutzte Metall unmittelbar auf die Keramikoberfläche aufgeschmolzen wird. Das letztere Verfahren ist zur Herstellung vakuumdichter Verbindungen nicht benutzt worden. Man würde auf diese Weise vakuumdichte und temperaturfeste Verbindungen erhalten, wenn zwischen der Keramik und dem Metall eine unmittelbare chemische Umsetzung eintreten würde. Zur Erzielung einer solchen chemischen Verbindung wird bei dem Verfahren nach der Erfindung eine aus Silber oder Kupfer als Grundmetall bestehende Legierung, die als Leglerungsbiestandteile Silicium, Mangan, Bor, Zinn, Lithium oder Phosphor enthält, auf die Keramikoberfläche aufgebracht, mit der diese Legierungsbestandteile beim Aufschmelzen chemische Verbindungen eingeben. Die Zusammensetzung der Legierung richtet sich nach der Zusammensetzung des Keramikkörpers und der Gasatmosphäre, in der die Verschmelzung vorgenommen wird. Zum Aufschmelzen auf einen Porzellankörper empfiehlt sich die Verwendung einer Silber-Mangan- oder Silber-Silicium-Legierung, wenn in einer oxydierenden Atmosphäre gearbeitet wird. Es bilden sich dann an der Grenzfläche zwischen dem Metall und der Keramik aus dein Oxyd der Beimischung und der Keramik selbst Zwischenerzeugnisse auf Silicatgrundluge, z. B. Mangan-Silicat, die sowohl im Metall ,als auch im Keramikkörper löslich sind und eine Benetzung herbeiführen.Process for the vacuum-tight connection of metal objects with ceramics Bodies With the known vacuum-tight. Connections between metal and ceramics is either a metal sleeve by means of a glass flux with the ceramic body connected or the ceramic surface first metallized and then. on this metal surface the metal sleeve is soldered in the usual way. According to another procedure the ceramic surface is first provided with a glass flux on the metal particles be sintered on. The metal sleeve is attached to these metal particles by means of hard or soldered. It is also known to combine metal objects with ceramic To connect bodies in such a way that the metal used as a binder immediately is melted onto the ceramic surface. The latter method is for manufacturing vacuum-tight connections have not been used. One would be vacuum-tight that way and temperature-resistant connections obtained when between the ceramic and the metal an immediate chemical reaction would occur. To achieve such chemical compound becomes one of silver in the method according to the invention or copper as the base metal, which are used as constituent parts of the alloy Contains silicon, manganese, boron, tin, lithium or phosphorus on the ceramic surface applied, with which these alloy constituents chemical compounds when melting input. The composition of the alloy depends on the composition the ceramic body and the gas atmosphere in which the fusion is carried out. For melting onto a porcelain body, we recommend using a silver-manganese or silver-silicon alloy when worked in an oxidizing atmosphere will. It then forms at the interface between the metal and the ceramic from the oxide of the admixture and the ceramic itself intermediate products on a silicate base, z. B. Manganese silicate, which are soluble in both the metal and the ceramic body and bring about wetting.

In ähnlicher Weise kann bei Magnesium= Silicaten, z. B. Steatit oder ähnlichen Werkstoffen, vorgegangen werden. Bei diesen Werkstoffen ist :es jedoch im allgemeinen vorteilhafter, in :einer reduzierenden Atmosphäre oder im Vakuum zu arbeiten, weil aus diesen Verbindungen beim Erhitzen Sauerstoff frei wird, der in der geschilderten-Weise zur Bildung der Zwischenschichten dient.Similarly, in the case of magnesium = silicates, e.g. B. steatite or similar materials. With these materials it is: however generally more advantageous in: a reducing atmosphere or in a vacuum to work because oxygen is released from these compounds when heated, the serves in the manner described to form the intermediate layers.

Claims (1)

PATENTANSPRUCH: Verfahren zum vakuumdichten Verbinden von Metallgegenständen mit keramischen Körpern durch Aufschmelzen einer unmittelbar auf die Keramikoberfläche au.fgebrachten Legierung, dadurch gekennzeichnet, daß die Legierung als Grundmetall Silber oder Kupfer und als Legierungsbestandteile Silicium, Mangan. Bor. Zinn, Lithium oder Phosphar enthält, die beim Aufschmelzen mit der Keramikoberfläche chemische Verbindungen eingehen.PATENT CLAIM: Process for the vacuum-tight connection of metal objects with ceramic bodies by melting one directly onto the ceramic surface applied alloy, characterized in that the alloy is used as the base metal Silver or copper and, as alloy components, silicon and manganese. Boron. Tin, lithium or contains phosphorous, which are chemical when melted onto the ceramic surface Make connections.
DEA80746D 1936-10-14 1936-10-14 Process for the vacuum-tight connection of metal objects with ceramic bodies Expired DE727062C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEA80746D DE727062C (en) 1936-10-14 1936-10-14 Process for the vacuum-tight connection of metal objects with ceramic bodies

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEA80746D DE727062C (en) 1936-10-14 1936-10-14 Process for the vacuum-tight connection of metal objects with ceramic bodies

Publications (1)

Publication Number Publication Date
DE727062C true DE727062C (en) 1942-10-27

Family

ID=6948126

Family Applications (1)

Application Number Title Priority Date Filing Date
DEA80746D Expired DE727062C (en) 1936-10-14 1936-10-14 Process for the vacuum-tight connection of metal objects with ceramic bodies

Country Status (1)

Country Link
DE (1) DE727062C (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE925519C (en) * 1943-06-06 1955-03-24 Siemens Ag Process for joining ceramic parts with parts made of oxidizable metals
DE965989C (en) * 1950-11-19 1957-08-14 Licentia Gmbh Process for the production of ceramic-metal connections
DE968557C (en) * 1953-05-12 1958-03-06 Philips Nv Method for joining ceramic objects with one another or with metal objects

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE925519C (en) * 1943-06-06 1955-03-24 Siemens Ag Process for joining ceramic parts with parts made of oxidizable metals
DE965989C (en) * 1950-11-19 1957-08-14 Licentia Gmbh Process for the production of ceramic-metal connections
DE968557C (en) * 1953-05-12 1958-03-06 Philips Nv Method for joining ceramic objects with one another or with metal objects

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