Title :
1,000 A/cm2 cathode: To be or not to be?
Author :
Taran, A. ; Kyslytsyn, O. ; Podshyvalova, O. ; Ordanjan, S.
Author_Institution :
Phys. Dept., Nat. Aerosp. Univ., Kharkiv, Ukraine
Abstract :
Method of obtaining sintered and pressed composed materials based on BaxSr1-xHfO3, where x = 0.25, 0.50, 0.75, with 16, 20, 24, 60 % W (by mass), and experimental results of thermionic properties investigations of these materials are represented. The composition of 80% Ba0.75Sr0.25HfO3 - 20 % W (by mass) is characterized by the thermionic current density of 1014 A/cm2 at T = 1620 K.
Keywords :
barium compounds; cathodes; current density; strontium compounds; Ba0.75Sr0.25HfO3; cathode; pressed composed materials; sintered composed materials; thermionic current density; thermionic properties; Barium; Cathodes; Current density; Hafnium; Materials; Strontium; Tungsten; barium-strontium hafnate; cathode; thermionic current density; tungsten;
Conference_Titel :
Vacuum Electronics Conference (IVEC), 2013 IEEE 14th International
Conference_Location :
Paris
Print_ISBN :
978-1-4673-5976-4
DOI :
10.1109/IVEC.2013.6570929
