Cercetări experimentale privind emisia termo-electronică a catozilor din wolfram
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GUZGAN, Dorin, TOPALĂ, Pavel. Cercetări experimentale privind emisia termo-electronică a catozilor din wolfram. In: Orientări actuale în cercetarea doctorală, Ed. 7, 7 decembrie 2017, Bălți. Bălți, Republica Moldova: Tipografia "Indigou Color", 2017, Ediţia 7, p. 28.
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Orientări actuale în cercetarea doctorală
Ediţia 7, 2017
Colocviul "Orientări actuale în cercetarea doctorală"
7, Bălți, Moldova, 7 decembrie 2017

Cercetări experimentale privind emisia termo-electronică a catozilor din wolfram


Pag. 28-28

Guzgan Dorin, Topală Pavel
 
Universitatea de Stat „Alecu Russo” din Bălţi
 
 
Disponibil în IBN: 15 martie 2021


Rezumat

The paper presents results of experimental investigations aimed at the construction of cathodes for thermo-electronic emission. The method of pulsed electrical discharge machining was applied to confer a prescribed micro-geometry of the tungsten cathode active surface. Modification of the tungsten cathode surface micro-geometry involves the extraction and freezing of the Taylor cone meniscuses that are electric field and heat concentrators applied in order to increase the intensity of the thermo-electronic emission current.

Cuvinte-cheie
electrical discharges, tungsten, micro-geometry, meniscus, emission, thermoelectrons.

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