DE971072C - Process for the production of electrically conductive oxide surface layers on non-glazed ceramic bodies - Google Patents

Process for the production of electrically conductive oxide surface layers on non-glazed ceramic bodies

Info

Publication number
DE971072C
DE971072C DES38191A DES0038191A DE971072C DE 971072 C DE971072 C DE 971072C DE S38191 A DES38191 A DE S38191A DE S0038191 A DES0038191 A DE S0038191A DE 971072 C DE971072 C DE 971072C
Authority
DE
Germany
Prior art keywords
conductive oxide
electrically conductive
surface layers
oxide surface
production
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
DES38191A
Other languages
German (de)
Inventor
Dr-Ing Karl Hans Reiss
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.)
Siemens Reiniger Werke AG
Original Assignee
Siemens Reiniger Werke 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 Siemens Reiniger Werke AG filed Critical Siemens Reiniger Werke AG
Priority to DES38191A priority Critical patent/DE971072C/en
Application granted granted Critical
Publication of DE971072C publication Critical patent/DE971072C/en
Expired legal-status Critical Current

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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
    • C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/009—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone characterised by the material treated
    • 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
    • C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/53—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone involving the removal of at least part of the materials of the treated article, e.g. etching, drying of hardened concrete
    • C04B41/5338—Etching
    • 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
    • C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/80—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone of only ceramics
    • C04B41/91—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone of only ceramics involving the removal of part of the materials of the treated articles, e.g. etching
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B1/00—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
    • 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
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/90—Electrical properties
    • C04B2111/94—Electrically conducting materials

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Surface Treatment Of Glass (AREA)

Description

Verfahren zur Herstellung elektrisch leitender Oxyd-Oberflächenschichten auf nicht glasierten keramischen Körpern Die Erfindung betrifft ein Verfahren zur Herstellung elektrisch leitender Oxyd-Oberflächenschichten auf nicht glasierten keramischen Körpern.Process for the production of electrically conductive oxide surface layers on non-glazed ceramic bodies The invention relates to a method for Manufacture of electrically conductive oxide surface layers on non-glazed surfaces ceramic bodies.

Es ist ein Verfahren zur Herstellung von Metallüberzügen auf keramischen Körpern bekannt, bei dem dem aufzubringenden Metall Alkali- oder Erdalkalifluoride zugesetzt werden. Die Metall-Alkalifluorid- bzw. Metall-Erdalkalifluorid-Mischung wird hierbei auf dem keramischen Körper festgesintert. Nach diesem Verfahren, bei dem Fluoride mit dem aufzubringenden Überzugsmaterial gemischt werden, wurden jedoch nicht Oxyd-Oberflächenschichten, also Halbleiter, hergestellt.It is a process for the production of metal coatings on ceramics Bodies known in which the metal to be applied is alkali or alkaline earth fluoride can be added. The metal-alkali fluoride or metal-alkaline earth fluoride mixture is sintered onto the ceramic body. Following this procedure, at the fluoride are mixed with the coating material to be applied, however not oxide surface layers, i.e. semiconductors, produced.

Zur Herstellung von elektrisch leitenden Oxyd-Oberflächenschichten auf Gläsern ist es bekannt, auf die erhitzte Glasoberfläche eine Zinnhalogen-oder Indiumhalogenverbindung aufzubringen, z. B. in der Weise, daß die betreffenden auf Temperaturen- von etwa 3oo bis 500° C erhitzten Flächen mit einer Lösung einer derartigen Verbindung besprüht oder in eine solche Lösung eingetaucht werden, bzw. daß Nebel der geschmolzenen Verbindung gegen die erhitzten Flächen geblasen werden. Die Halogenverbindung verwandelt sich unter der Mitwirkung des Luftsauerstoffes an der Glasoberfläche in ein Oxyd, das elektrisch leitet.For the production of electrically conductive oxide surface layers On glasses it is known to apply a tin halogen or tin to the heated glass surface Apply indium halogen compound, e.g. B. in such a way that the concerned on Temperatures from about 300 to 500 ° C heated surfaces with a solution of such Compound sprayed or immersed in such a solution, or that mist the molten compound is blown against the heated surfaces will. The halogen compound is transformed with the help of atmospheric oxygen on the surface of the glass into an electrically conductive oxide.

Die unmittelbare übertragung dieses Verfahrens zur Herstellung von leitenden Oxyd-Oberflächenschichten auf nichtglasierten keramischen Körpern führt nur zu unbefriedigenden Ergebnissen. Die auf diese Weise hergestellten Beläge weisen ungleichmäßige Schichtdicken und hohe Widerstandswerte auf und zeigen eine nur mangelhafte Haftfestigkeit.The direct transfer of this method of making conductive oxide surface layers on non-glazed ceramic bodies only to unsatisfactory results. The coverings produced in this way show uneven layer thicknesses and high resistance values and only show poor quality Adhesion Strength.

Diese Nachteile bei der Herstellung von elektrisch leitenden Oxyd-Oberflächenschichten auf nicht glasierten keramischen Körpern nach dem angegebenen Verfahren werden erfindungsgemäß dadurch vermieden, daß im Rahmen einer Vorbehandlung an den zu behandelnden Flächen des keramischen Körpers die Oberfläche dieser Körper durch Einwirkung von Flußsäure oder von Fluoriden - diese unter Wärmezufuhr - angeätzt wird.These disadvantages in the production of electrically conductive oxide surface layers on non-glazed ceramic bodies according to the specified method are according to the invention thereby avoided that as part of a pretreatment on the surfaces to be treated of the ceramic body, the surface of these bodies by the action of hydrofluoric acid or by fluorides - these are etched with the addition of heat.

Nach einem weiteren Merkmal der Erfindung wird die elktrisch leitende Oxydschicht bei höheren Temperaturen (bis 8oo° C) in oxydierender Atmosphäre nachgebrannt. Durch diese Nachbehandlung lassen sich höhere Leitfähigkeiten und eine bessere Haftfähigkeit der leitenden Schicht erzielen. Durch mehr oder weniger intensive Vor- und Nachbehandlung kann man den Widerstandswert der leitenden Schicht in weiten Grenzen beeinflussen. Insbesondere gestattet die Nachbehandlung Korrekturen an den Widerstandswerten der leitenden Schichten vorzunehmen.According to a further feature of the invention, the electrically conductive Oxide layer burned afterwards at higher temperatures (up to 8oo ° C) in an oxidizing atmosphere. This post-treatment allows higher conductivities and better adhesion achieve the conductive layer. Through more or less intensive pre- and post-treatment the resistance value of the conductive layer can be influenced within wide limits. In particular, the post-treatment allows corrections to be made to the resistance values of the make conductive layers.

Claims (1)

PATENTANSPRÜCHE: i. Verfahren zur Herstellung elektrisch leitender Oxyd-Oberflächenschichten auf nicht glasierten keramischen Körpern, dadurch gekennzeichnet, daß zunächst die Oberfläche der keramischen Körper durch Einwie cung von. Flußsäure oder von Fluoriden - diese unter Wärmeeinwirkung - angeätzt wird und daß danach in bei der Herstellung von elektrisch leitenden Oxyd-Oberflächenschichten von Gläsern bekannter Weise auf die auf Temperaturen von etwa 3oo bis 5oo° C erhitzten Oberflächen eine Zinnhalogen- oder Indiumhalogenverbindung aufgebracht wird. a. Verfahren nach Anspruch i, dadurch gekennzeichnet, daß die leitende Oxydschicht bei höheren Temperaturen (bis 8oo° C) in oxydierender Atmosphäre nachbehandelt wird. In Betracht gezogene Druckschriften: Deutsche Patentschrift Nr. 873 375.PATENT CLAIMS: i. Process for the production of electrically conductive Oxide surface layers on non-glazed ceramic bodies, characterized in that that first the surface of the ceramic body by Einwie cung of. Hydrofluoric acid or by fluorides - these under the action of heat - is etched and that afterwards in the manufacture of electrically conductive oxide surface layers on glasses known way on the heated to temperatures of about 3oo to 5oo ° C surfaces a tin halogen or indium halogen compound is applied. a. Procedure according to Claim i, characterized in that the conductive oxide layer at higher temperatures (up to 8oo ° C) is post-treated in an oxidizing atmosphere. Considered Publications: German Patent No. 873 375.
DES38191A 1954-03-18 1954-03-18 Process for the production of electrically conductive oxide surface layers on non-glazed ceramic bodies Expired DE971072C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DES38191A DE971072C (en) 1954-03-18 1954-03-18 Process for the production of electrically conductive oxide surface layers on non-glazed ceramic bodies

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DES38191A DE971072C (en) 1954-03-18 1954-03-18 Process for the production of electrically conductive oxide surface layers on non-glazed ceramic bodies

Publications (1)

Publication Number Publication Date
DE971072C true DE971072C (en) 1958-12-04

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Family Applications (1)

Application Number Title Priority Date Filing Date
DES38191A Expired DE971072C (en) 1954-03-18 1954-03-18 Process for the production of electrically conductive oxide surface layers on non-glazed ceramic bodies

Country Status (1)

Country Link
DE (1) DE971072C (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE873375C (en) * 1943-02-27 1953-04-13 Siemens Ag Process for the production of metal coatings on ceramics

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE873375C (en) * 1943-02-27 1953-04-13 Siemens Ag Process for the production of metal coatings on ceramics

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