AT33753B - Process for the production of thin plates or films from metallic iridium. - Google Patents

Process for the production of thin plates or films from metallic iridium.

Info

Publication number
AT33753B
AT33753B AT33753DA AT33753B AT 33753 B AT33753 B AT 33753B AT 33753D A AT33753D A AT 33753DA AT 33753 B AT33753 B AT 33753B
Authority
AT
Austria
Prior art keywords
iridium
films
production
thin plates
metallic iridium
Prior art date
Application number
Other languages
German (de)
Inventor
Herschel Clifford Parker
Original Assignee
Herschel Clifford Parker
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 Herschel Clifford Parker filed Critical Herschel Clifford Parker
Application granted granted Critical
Publication of AT33753B publication Critical patent/AT33753B/en

Links

Landscapes

  • Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
  • Surface Treatment Of Glass (AREA)

Description

  

   <Desc/Clms Page number 1> 
 
 EMI1.1 
 



     Den Gegenstand   der vorliegenden Erfindung bildet ein Verfahren zur Herstellung von Iridiumschichten von   homogener und   dichter Materialbeschaffenheit durch   Glühen   einer Iridium- 
 EMI1.2 
   feuerbeständigen   Unterlagen, wobei entweder (auf durchsichtigen Unterlagen)   Iridiumfilms   oder   Iridiumplättchen   gewonnen werden, welche zu   Drähten   oder Scheiben weiterverarbeitet werden können. 



   Die Ausscheidung von metallischem Iridium durch Glühen von in der Hitze zersetzbaren Iridiumsalzen auf feuerbeständigen Unterlagen ist an sich bekannt. Auf diese Weise wurden   bereits selbstzündende   Glühkörper hergestellt, indem   man     Glühstrümpfe,   also poröse Tragkörper, mit einer Lösung zersetzbarer Iridiumsalze imprägnierte, wobei behufs Aufrechterhaltung 
 EMI1.3 
 



   Im Gegensatze hiezu werden gemäss der vorliegenden Erfindung homogene und dichte   nietallische Iridiumachichten   durch   Auftragung     zersetzlichel'Iridiu11lverbindungen   auf un-   durchbrochene (durchsichtige oder undurchsichtige) Flächen hergestellt, wobei durch Beigabe     von flüchtigen Reduktionsmitteln die   dichte   Materialbeschanenheit der abgeschiedenen Schicht     nicht nur gefördert, sondern geradezu bewirkt wird.   



     Die praktische Ausführung des vorliegenden Verfahrens besteht darin, dass   ein   Gemenge   von 
 EMI1.4 
   Flächen von   feuerfestem Material aufgetragen und erhitzt wird, bis sich das metallische Iridium ausgeschieden hat. Hiebei können als Tragkörper Röhren oder beliebig geformte Hohlkörper 
 EMI1.5 
   flächen sich das Iridium met@llisch niederschlägt. Diese Iridiumfilms   finden als mit leitender Schicht versehene Leuchtröhren für   Glühlampen     Verwendung.   



   Andererseits kann der metallische Beschlag auf Platten erzeugt werden und nach Er- 
 EMI1.6 
 

 <Desc/Clms Page number 2> 

 könnte für den vorliegenden Zweck keine Anwendung finden, da infolge der hohen Zersetzungs. temperatur des Sulfates der Spiegel gewissermassen in das Glas eingebrannt wird und daher von diesem als   Plättchen nicht abgelöst   werden könnte ; ferner wird die Kontinuität des Spiegel nur durch die starke Verdünnung mit Alkohol naturgemäss auf Kosten der Dicke der Schicht erzielt. 



   PATENT-ANSPRÜCHE : 
 EMI2.1 
 durch Glühen von in der Hitze zersetzbaren Iridiumsalzen auf   feuerbeständigen   Unterlagen, dadurch gekennzeichnet, dass ein Gemenge einer Iridiumammoniumchlorverbindung und eines reduzierend wirkenden, in der Hitze flüchtigen Körpers, wie Ammoniumchlorid oder   Ammonium-   karbonat auf undurchsichtigen oder durchsichtigen Flächen geglüht wird.



   <Desc / Clms Page number 1>
 
 EMI1.1
 



     The subject of the present invention is a process for the production of iridium layers of homogeneous and dense material properties by annealing an iridium
 EMI1.2
   Fire-resistant substrates, whereby either iridium film or iridium platelets are obtained (on transparent substrates), which can be further processed into wires or discs.



   The precipitation of metallic iridium by annealing heat-decomposable iridium salts on fire-resistant substrates is known per se. Self-igniting incandescent bodies have already been produced in this way by impregnating incandescent mantles, ie porous support bodies, with a solution of decomposable iridium salts, with the aim of maintaining them
 EMI1.3
 



   In contrast to this, according to the present invention, homogeneous and dense nietallic iridium layers are produced by applying decomposable iridium compounds to uninterrupted (transparent or opaque) surfaces, with the addition of volatile reducing agents not only promoting the dense material nature of the deposited layer, but actually causing it .



     The practical implementation of the present method is that a mixture of
 EMI1.4
   Refractory material is applied to surfaces and heated until the metallic iridium has precipitated. Tubes or hollow bodies of any shape can be used as supporting bodies
 EMI1.5
   areas where the iridium is deposited metallic. These iridium films are used as light tubes provided with a conductive layer for incandescent lamps.



   On the other hand, the metallic fitting can be produced on panels and
 EMI1.6
 

 <Desc / Clms Page number 2>

 could not be used for the present purpose because of the high degree of decomposition. temperature of the sulphate the mirror is burnt into the glass to a certain extent and therefore could not be detached from it as a platelet; furthermore, the continuity of the mirror is naturally only achieved through the strong dilution with alcohol at the expense of the thickness of the layer.



   PATENT CLAIMS:
 EMI2.1
 by annealing iridium salts which are decomposable in the heat on fire-resistant substrates, characterized in that a mixture of an iridium ammonium chloride and a reducing body which is volatile in the heat, such as ammonium chloride or ammonium carbonate, is annealed on opaque or transparent surfaces.

 

Claims (1)

2. Ausführungsform des Verfahrens nach Anspruch 1, dadurch gekennzeichnet, dass das Gemenge aus zwei Teilen Iridiumammoniumchlorid und einem Teile Ammoniumchlorid g bildet wird. 2. Embodiment of the method according to claim 1, characterized in that the mixture is formed from two parts of iridium ammonium chloride and one part of ammonium chloride.
AT33753D 1905-11-20 1905-11-20 Process for the production of thin plates or films from metallic iridium. AT33753B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT33753T 1905-11-20

Publications (1)

Publication Number Publication Date
AT33753B true AT33753B (en) 1908-07-25

Family

ID=3549561

Family Applications (1)

Application Number Title Priority Date Filing Date
AT33753D AT33753B (en) 1905-11-20 1905-11-20 Process for the production of thin plates or films from metallic iridium.

Country Status (1)

Country Link
AT (1) AT33753B (en)

Similar Documents

Publication Publication Date Title
DE1496540B1 (en) Process for the production of coatings from metallic copper and / or silver on ceramic molded bodies that have been removed from glass
DE112016003672T5 (en) Chemically strengthened glass
AT33753B (en) Process for the production of thin plates or films from metallic iridium.
DE649620C (en) Process for the production of glass objects combined from several individual parts
DE2236815A1 (en) GLASSES, GLASS CERAMICS AND PROCESS FOR THEIR PRODUCTION
CH244060A (en) Process for the production of a body with a core made of an alloy containing chromium and bodies produced by this process.
DE822715C (en) Mirror and process for its manufacture
DE1771233A1 (en) Method for consolidating a layer of a vitreous or vitro-crystalline material
AT137832B (en) Wireless electrical resistance.
DE2644915C3 (en) Glass ceramic of the SiO2 -Al2 O3 -CaO system with needle-shaped ß-wollastonite crystals
DE1106577B (en) Process for the production of objects from a platinum-rhodium alloy, e.g. B. spinnerets for glass
DE809337C (en) Glass melting container
DE958698C (en) Process for the production of a flexible glass film for electrotechnical purposes
DE1015298B (en) Process for the surface treatment of metals by applying layers of silicate
DE829201C (en) Multilayer product made of glass
DE506459C (en) Process for the production of metal coatings on bodies from non-conductive oxides for indirectly heated cathodes of electrical discharge vessels
DE529081C (en) Process for exploiting the oligodynamic effect of metals
DE929390C (en) Process for the production of essentially cloudless glass with a transparent, electrically conductive coating
DE926459C (en) Process for surface silvering
DE872635C (en) Process for the production of bubble-free fusion connections between ferrous metals and electrical insulating materials
DE2310726C2 (en) Method for increasing the mechanical strength of objects made of glass, ceramics and the like.
DE756869C (en) Colored wall or cladding panel made of glass
DE713006C (en) Permanent surface mirror with high reflectivity
DE394271C (en) Process for the production of conductive coverings on insulating layers for capacitors
DE2505270A1 (en) PROCESS FOR HYDRATING SILICATE GLASSES