DE972884C - Process for generating metal deposits - Google Patents

Process for generating metal deposits

Info

Publication number
DE972884C
DE972884C DESCH22243A DESC022243A DE972884C DE 972884 C DE972884 C DE 972884C DE SCH22243 A DESCH22243 A DE SCH22243A DE SC022243 A DESC022243 A DE SC022243A DE 972884 C DE972884 C DE 972884C
Authority
DE
Germany
Prior art keywords
metal
metal compound
temperature
generating metal
opening
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
DESCH22243A
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German (de)
Inventor
Hermann Schladitz
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to DESCH22243A priority Critical patent/DE972884C/en
Application granted granted Critical
Publication of DE972884C publication Critical patent/DE972884C/en
Expired legal-status Critical Current

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Classifications

    • CCHEMISTRY; METALLURGY
    • C23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23CCOATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C16/00Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
    • C23C16/44Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating

Landscapes

  • Chemical & Material Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Chemical Vapour Deposition (AREA)

Description

Verfahren zur Erzeugung von Metallniederschlägen Die Erfindung betrifft ein Verfahren zur Erzeugung von Metallniederschlägen auf anorganischen oder organischen Körpern unter Verwendung von thermisch zersetzbaren Metallverbindungen. Es ist bekannt, den Körper vor oder während der Metallisierung mindestens auf die Zersetzungstemperatur der Metallverbindung zu erhitzen. Dieses Metallisierungsverfahren hat jedoch wesentliche Nachteile.Process for Generating Metal Precipitates The invention relates to a process for the production of metal deposits on inorganic or organic Bodies using thermally decomposable metal compounds. It is known, the body before or during the metallization to at least the decomposition temperature to heat the metal compound. However, this metallization process has essentials Disadvantage.

Wegen der hohen Temperaturen können hitzeempfindliche organische Stoffe nicht mit diesem Verfahren metallisiert werden. Es ist außerdem sehr schwierig, gleichbleibende Reaktionsbedingungen, insbesondere eine gleichbleibende günstige Temperatur am Abscheidungsort einzuhalten, so daß mit den vorbekannten Verfahren ein festhaftender, feinkörniger Metallüberzug nicht erzielt werden konnte und außerdem auch erhebliche Verluste durch Bildung von Metallstaub eintraten.Because of the high temperatures, heat-sensitive organic substances can cannot be metallized with this process. It is also very difficult constant reaction conditions, in particular a constant favorable one Maintain temperature at the point of deposition, so that with the previously known method a firmly adhering, fine-grained metal coating could not be achieved and moreover there were also considerable losses due to the formation of metal dust.

Um diese Schwierigkeiten teilweise zu vermeiden, war es bisher notwendig, den Metallisierungsprozeß im Vakuum vorzunehmen.In order to partially avoid these difficulties, it was previously necessary carry out the metallization process in a vacuum.

Bei dem Verfahren nach vorliegender Erfindung wird die in einem Druckbehälter auf hohe Temperatur gebrachte und bei hohem Druck stabil erhaltene dampfförmige Metallverbindung durch Entspannung zersetzt. Damit wird eine erhebliche Vereinfachung des Metallisierungsverfahrens erzielt, da die Erhitzung des zu metallisierenden Körpers vollständig in Wegfall kommt, demgemäß auch alle Schwierigkeiten der Temperatursteuerung vermieden werden, die mit der Temperatursteuerung bei der thermischen Zersetzung von Metallverbindungen verbunden sind. Bei dem neuen Verfahren kann der Zersetzungsprozeß ohne weiteres unter gleichbleibenden Bedingungen, d. h. unter Konstanthaltung von Druck und Temperatur bei der Entspannung erfolgen, so daß also auf Körpern jeder Art und Oberflächengestalt ein völlig gleichmäßiger, sehr feinkörniger außerordentlich festhaftender Metallüberzug hergestellt werden kann. Da bei dem neuen Verfahren der zu metallisierende Körper nicht erhitzt zu werden braucht, so ist es ohne weiteres möglich, mit dem neuen Verfahren auch hitzeempfindliche organische Stoffe, wie z. B. Papier, Textilien u. dgl., zu metallisieren.In the method according to the present invention, the in a pressure vessel brought to high temperature and obtained stably at high pressure vapor Metal compound decomposed by relaxation. This is a considerable simplification of the metallization process, since the heating of the Body is completely eliminated, accordingly all difficulties of temperature control avoided with temperature control during thermal decomposition are connected by metal connections. In the new process, the decomposition process just like that under constant conditions, d. H. while keeping it constant of pressure and temperature during relaxation, so that everyone on the body Type and surface shape a completely uniform, very fine-grained extraordinarily firmly adhering metal coating can be produced. As with the new procedure the body to be metallized does not need to be heated, so it is straightforward possible with the new process also heat-sensitive organic substances such. B. paper, textiles and the like. To metallize.

Für die Durchführung des neuen Verfahrens sind Metallcarbonyle besonders geeignet. Das Carbonyl wird in einem druckfesten Behälter auf einen entsprechend hohen Druck und eine hohe Temperatur gebracht, wobei diese Temperatur über der Zersetzungstemperatur der Metallverbindung bei normalem Druck liegt.Metal carbonyls are particularly useful for carrying out the new process suitable. The carbonyl is in a pressure-resistant container on a corresponding high pressure and high temperature, this temperature being above the decomposition temperature the metal connection is at normal pressure.

Aus diesem Behälter läßt man die Metallverbindung durch eine Düse austreten. Die bei diesem Austritt auftretende Entspannung auf niedrigen Druck bringt die Metallverbindung aus dem stabilen in den unstabilen Zustand, so daß sie zersetzt wird. Die Metallverbindung bzw. die Zersetzungsprodukte werden durch den hohen im Behälter herrschenden Druck mit großer Geschwindigkeit auf die Oberfläche des zu metallisierenden Körpers geblasen. -The metal compound is let out of this container through a nozzle step out. The relaxation that occurs at this exit brings it to low pressure the metal compound from the stable to the unstable state, so that it decomposes will. The metal compound or the decomposition products are due to the high im The pressure exerted at great speed on the surface of the container blown metallizing body. -

Claims (1)

PATENTANSPRUCH: Verfahren zur Erzeugung von Metallniederschlägen auf anorganischen oder organischen Körpern unter Verwendung von thermisch zersetzbaren Metallverbindungen, dadurch gekennzeichnet, daß die in einem Druckbehälter auf hohe Temperatur gebrachte und bei hohem Druck stabil erhaltene dampfförmige Metallverbindung mittels einer düsenartigen Öffnung entspannt und die durch diese Öffnung aus dem Behälter mit hoher Geschwindigkeit austretende, sich unter Metallabscheidung zersetzende Metallverbindung auf den zu metallisierenden Gegenstand gelenkt wird. In Betracht gezogene Druckschriften: Deutsche Patentschrift Nr. 504418; Chemical Engineering, 1949, S. 1z8.PATENT CLAIM: Process for generating metal precipitates inorganic or organic bodies using thermally decomposable Metal compounds, characterized in that the in a pressure vessel on high Vaporous metal compound brought to temperature and obtained stably at high pressure relaxed by means of a nozzle-like opening and the through this opening from the Containers escaping at high speed, decomposing with metal separation Metal compound is directed to the object to be metallized. Into consideration Printed publications: German Patent No. 504418; Chemical engineering, 1949, p. 1z8.
DESCH22243A 1949-10-22 1949-10-22 Process for generating metal deposits Expired DE972884C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DESCH22243A DE972884C (en) 1949-10-22 1949-10-22 Process for generating metal deposits

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DESCH22243A DE972884C (en) 1949-10-22 1949-10-22 Process for generating metal deposits

Publications (1)

Publication Number Publication Date
DE972884C true DE972884C (en) 1959-10-22

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Family Applications (1)

Application Number Title Priority Date Filing Date
DESCH22243A Expired DE972884C (en) 1949-10-22 1949-10-22 Process for generating metal deposits

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1261207B (en) * 1961-03-23 1968-02-15 Guenter Basler Dipl Ing Process for the production of an electrically semiconducting cover on thin threads made of insulating material

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE504418C (en) * 1928-02-28 1930-08-04 Siemens & Halske Akt Ges Process for the metallization of thermally unstable materials, especially organic insulating materials

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE504418C (en) * 1928-02-28 1930-08-04 Siemens & Halske Akt Ges Process for the metallization of thermally unstable materials, especially organic insulating materials

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1261207B (en) * 1961-03-23 1968-02-15 Guenter Basler Dipl Ing Process for the production of an electrically semiconducting cover on thin threads made of insulating material

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