Title :
Preparation and performance of the ammonium perrhenate impregnated W matrix Ba-W cathode
Author :
Xiaoxia Wang ; Mingwei Hu ; Shikai Qi ; Jirun Luo ; Yanwen Liu ; Qinglan Zhao ; Yun Li ; Qi Zhang ; Jiao Han
Author_Institution :
Key Lab. of High Power Microwave Sources & Technol., Inst. of Electron., Beijing, China
Abstract :
In this paper we mainly describes the research progress in a kind of ammonium perrhenate impregnated W matrix Ba-W cathode, which includes the preparation of W-Re matrix by impregnated ammonium perrhenate solution and the cathode properties testing. The lifetime testing results show that the emission current, after 16056h lifetime at a temperature of 1000 °Cbr, has still increased more than 8% with 3.0 A/cm2 DC current.
Keywords :
ammonium compounds; barium compounds; cathodes; life testing; tungsten compounds; Ba-W; NH4ReO4; W-Re; ammonium perrhenate solution; cathode properties testing; emission current; lifetime testing; time 16056 h; Cathodes; Furnaces; Heating; Image color analysis; Matrix decomposition; Powders; Testing; Ammonium perrhenate (NH4ReO4); Impregnated barium tungsten Cathode; long Lifetime;
Conference_Titel :
Vacuum Electronics Conference (IVEC), 2015 IEEE International
Print_ISBN :
978-1-4799-7109-1
DOI :
10.1109/IVEC.2015.7223933
