The microstructure stabilization of tungsten carcasses of impregnated cathodes

 
V.Skorokhod,
  

I. M. Frantsevich Institute for Problems of Materials Science of the NAS of Ukraine, Krzhizhanovsky str., 3, Kyiv, 03142, Ukraine
Electrical Contacts and Electrodes - Kiev: Frantsevich Institute for Problems of Materials Science NASU, 2014, #12
http://www.materials.kiev.ua/article/1139

Abstract

The structure changes of the tungsten carcasses of impregnated cathodes dependently on the average powder particle size and manufacturing techniques after long hours operation in the cyclical heating mode at temperatures of 950—1200 °C (brightness) have been investigated. The ways to increase the thermal stability of tungsten carcasses microstructure of impregnated cathodes IC have been analyzed. Full text download


IMPREGNATED CATHODE, MICROSTRUCTURE, PARTICLE SIZE OF TUNGSTEN, SIZE OF PORES, THE PORE DENSITY PER UNIT SURFACE AREA, TUNGSTEN CARCASSES