DocumentCode :
3489613
Title :
Barium Activity and Emissive Properties of Composite Oxides
Author :
Zorkin, A.Ya. ; Zorkina, O.A. ; Lemyakin, A.A.
Author_Institution :
Saratov State Tech. Univ.
fYear :
2006
fDate :
20-21 Sept. 2006
Firstpage :
394
Lastpage :
400
Abstract :
The influence of temperature and composition of BaO CaO SrO connection-oriented oxide-cathodes and BaO CaO Al2O3 connection-oriented aluminate cathodes on barium activity at free vacuum evaporation of oxides is examined. The increase of concentration of more stable oxides in comparison with baryta (CaO, SrO)) decreases the activity of oxygen and increase of barium activity. On the contrary, the additions of less stable oxides (2O3) increase oxygen activity and reduce barium activity. For receiving of the equal emission of various oxides the barium activity in them should be identical (about 10-12). The increased barium activity in triple oxide is the evidence of the tendency to education of nucleus pure barium
Keywords :
cathodes; evaporation; vacuum deposition; BaO-CaO-Al2O3; aluminate cathodes; barium activity; composite oxides emissive properties; oxide-cathodes; oxides vacuum evaporation; Aluminum oxide; Barium; Cathodes; Temperature; Vacuum technology;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Actual Problems of Electron Devices Engineering, International Conference on
Conference_Location :
Saratov
Print_ISBN :
1-4244-0246-8
Electronic_ISBN :
1-4244-0247-6
Type :
conf
DOI :
10.1109/APEDE.2006.307444
Filename :
4099658
Link To Document :
https://search.ricest.ac.ir/dl/search/defaultta.aspx?DTC=49&DC=3489613
بازگشت