Open AccessЭмиссионные свойства металлопористых катодов, модифицированных наноуглеродом
Author(s) -
Т.М. Крачковская,
Л.А. Мельников
Publication year - 2018
Publication title -
pisʹma v žurnal tehničeskoj fiziki
Language(s) - English
Resource type - Journals
eISSN - 1726-7471
pISSN - 0320-0116
DOI - 10.21883/pjtf.2018.22.46916.17460
Subject(s) - nanoclusters , tungsten , materials science , cathode , barium , carbon fibers , current density , chemical engineering , elemental analysis , diode , nanotechnology , metallurgy , composite material , inorganic chemistry , optoelectronics , chemistry , composite number , physics , quantum mechanics , engineering
The results of studying the emissive ability, structure, and elemental composition of the surface of an impregnated cathode with a fine-grained tungsten matrix with addition of polyhedral multilayer carbon nanostructures of the fulleroid type (0.2−0.7 wt %), impregnated with barium-calcium aluminate with addition of sulfoadduct of carbon nanoclusters (0.1−0.2 wt %), are presented. The tests in diode prototypes showed that these cathodes provide a current density of 20 A/cm^2.