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
Links
- 238000000034 method Methods 0.000 title claims description 4
- 229910052741 iridium Inorganic materials 0.000 title description 10
- GKOZUEZYRPOHIO-UHFFFAOYSA-N iridium atom Chemical compound [Ir] GKOZUEZYRPOHIO-UHFFFAOYSA-N 0.000 title description 10
- 238000004519 manufacturing process Methods 0.000 title description 2
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 3
- 235000019270 ammonium chloride Nutrition 0.000 claims description 2
- IZJHFJOSJRYLBF-UHFFFAOYSA-N azanium;iridium;chloride Chemical compound [NH4+].[Cl-].[Ir] IZJHFJOSJRYLBF-UHFFFAOYSA-N 0.000 claims description 2
- 239000000758 substrate Substances 0.000 description 4
- 238000000137 annealing Methods 0.000 description 3
- 230000009970 fire resistant effect Effects 0.000 description 3
- 150000002503 iridium Chemical class 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- ATRRKUHOCOJYRX-UHFFFAOYSA-N Ammonium bicarbonate Chemical compound [NH4+].OC([O-])=O ATRRKUHOCOJYRX-UHFFFAOYSA-N 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- 239000001099 ammonium carbonate Substances 0.000 description 1
- 235000012501 ammonium carbonate Nutrition 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 150000002504 iridium compounds Chemical class 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 229910021653 sulphate ion Inorganic materials 0.000 description 1
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)
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) |
-
1905
- 1905-11-20 AT AT33753D patent/AT33753B/en active
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