DE191790C - - Google Patents
Info
- Publication number
- DE191790C DE191790C DENDAT191790D DE191790DA DE191790C DE 191790 C DE191790 C DE 191790C DE NDAT191790 D DENDAT191790 D DE NDAT191790D DE 191790D A DE191790D A DE 191790DA DE 191790 C DE191790 C DE 191790C
- Authority
- DE
- Germany
- Prior art keywords
- class
- silicon
- bodies
- conductivity
- ladders
- 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.)
- Active
Links
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 229910010271 silicon carbide Inorganic materials 0.000 description 2
- HBMJWWWQQXIZIP-UHFFFAOYSA-N Silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 239000012298 atmosphere Substances 0.000 description 1
- 238000000889 atomisation Methods 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000012299 nitrogen atmosphere Substances 0.000 description 1
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 description 1
- 229910052715 tantalum Inorganic materials 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01K—ELECTRIC INCANDESCENT LAMPS
- H01K3/00—Apparatus or processes adapted to the manufacture, installing, removal, or maintenance of incandescent lamps or parts thereof
- H01K3/02—Manufacture of incandescent bodies
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Silicon Compounds (AREA)
- Carbon And Carbon Compounds (AREA)
- Ceramic Products (AREA)
Description
KAISERLICHESIMPERIAL
PATENTAMT.PATENT OFFICE.
PatentschriftPatent specification
KLASSE 21/. GRUPPECLASS 21 /. GROUP
Zusatz zum Patente 176001 vom 4. Januar 1905.Addendum to patent 176001 of January 4, 1905.
Patentiert im Deutschen Reiche vom 16. April 1907 ab. Längste Dauer: 3. Januar 1920.Patented in the German Empire on April 16, 1907. Longest duration: January 3, 1920.
Nach Patent 176001 werden Formkörper aus Siliziumkarbid unter Beimengung von Silizium durch Erhitzen in einer Stickstoffatmosphäre hergestellt. Diese Körper besitzen gute elektrische Leitfähigkeit und hohe mechanische Widerstandsfähigkeit. Sie vertragen auch hohe Temperaturen an der Luft. Es hat sich nun gezeigt, daß nach jenem Verfahren sich auch relativ sehr dünne Stäbchen und Fäden gewinnen lassen und daß diese, wenn sie in einer verdünnten Stickstoff- oder Wasserstoffatmosphäre oder auch im Vakuum erhitzt werden, sehr hohe Temperaturen vertragen und keine nennenswerte Zersetzung oder Zerstäubung erleiden. Sie sind daher für die Zwecke der elektrischen Glühlichtbeleuchtung vorzüglich geeignet.According to patent 176001, moldings are made made of silicon carbide with admixture of silicon by heating in a nitrogen atmosphere manufactured. These bodies have good electrical conductivity and high mechanical resistance. You tolerate also high temperatures in the air. It has now been shown that relatively very thin rods can also be produced using this method and let threads win and that these, if they are in a dilute nitrogen or in a hydrogen atmosphere or in a vacuum, very high temperatures tolerate and suffer no appreciable decomposition or atomization. They are therefore for the purpose of electrical Incandescent lighting excellently suited.
Je nach der Wahl des Verhältnisses von Silizium und Karborund und je nach der Wahl des Bindemittels kann man Körper von verschiedener Leitfähigkeit erhalten. Auch läßt sich die Leitfähigkeit durch Zusätze von Leitern 2. Klasse, wie z. B. Magnesia oder Leitern 1. Klasse, wie z. B. Wolframmetall oder Tantalmetall innerhalb weiter Grenzen variieren.Depending on the choice of the ratio of silicon and carborundum and depending on the Choosing the binder you can get bodies of different conductivity. The conductivity can also be increased by additives of ladders 2nd class, such as B. magnesia or ladders 1st class, such. B. Tungsten metal or tantalum metal vary within wide limits.
Claims (1)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE191790C true DE191790C (en) |
Family
ID=455166
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT191790D Active DE191790C (en) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE191790C (en) |
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0
- DE DENDAT191790D patent/DE191790C/de active Active
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