Preparation and characterization of scandia and Re doped tungsten matrix impregnated cathode

Journal of Physics and Chemistry of Solids

Volumn 68, Issue 12, 2007, Pages 2209-2215

  Wang, Jinshu ^a   Li, Lili ^a   Liu, Wei ^a   Wang, Yanchun ^a   Zhao, Lei ^a   Wang, Yiman ^a  

^a BEIJING UNIVERSITY OF TECHNOLOGY   (China)

Author keywords

A. Electronic materials; B. Chemical synthesis; D. Surface properties

Indexed keywords

CATHODES; CURRENT DENSITY; DOPING (ADDITIVES); ELECTRIC SPACE CHARGE; IMPREGNATION; RHENIUM COMPOUNDS; SURFACE PROPERTIES; WORK FUNCTION;

CHEMICAL SYNTHESIS; ELECTRONIC MATERIALS; IMPREGNATED CATHODES; RE DOPED TUNGSTEN MATRIX;

SCANDIUM COMPOUNDS;

EID: 36248974153     PISSN: 00223697     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.jpcs.2007.05.014     Document Type: Article

References (14)

1. 3 mixed matrix impregnated cathodes. Appl. Surf. Sci. 17 (1984) 517-529
2. Hasker J., Van Esdonk J., and Crombeen J.E. Properties and manufacture of top-layer scandate cathodes. Appl. Surf. Sci. 26 (1986) 173-195
3. Crombeen C. Some experiment on the role of oxygen and surface reactions for tungsten and scandate thermionic emitters. IEEE Trans. Electron. Dev. 37 (1990) 2585-2588
4. van Slooten U., and Duine P.A. Scanning auger measurements of activated and sputter cleaned Re-coated scandate cathodes. Appl. Surf. Sci. 111 (1997) 24-29
5. Shih A., Yater J.E., and Hor C. Interaction of Sc and O on W. Appl. Surf. Sci. 191 (2002) 44-51
6. Hasker J., and Crombeen J.E. Scandium supply after ion bombardment on scandate cathode. IEEE on ED 37 12 (1990) 2589-2594
7. 2/C samples for phenol oxidation. Appl. Cata. B: Environ. 43 (2003) 163-269
8. Frenken J.W.M., Zagwijn P.M., van Slooten U., and Duine P.A. A model system for scandate cathodes. Appl. Surf. Sci. 111 (1997) 35-41
9. Liu W., Zhang K., Wang Y., Pan K., Gu X., Wang J., Li J., and Zhou M. Operating model for scandia doped matrix scandate cathode. Appl. Surf. Sci. 251 (2005) 80-88
10. Yuan H., Gu X., Pan K., Wang Y., Liu W., Zhang K., Wang J., Zhou M., and Li J. Characteristics of scandate-impregnated cathodes with submicron scandia doped matrices. Appl. Surf. Sci. 251 (2005) 106-113
11. Yamamoto S., Taguchi S., and Watanabe I. Electron emission properties and surface atom behavior of an impregnated cathode coated with tungsten thin film. Jpn. J. Appl. Phys. 25 7 (1986) 971-975
12. Gaertner G., Geittner P., Lydtin H., and Ritz A. Emission properties of top-layer scandate cathodes prepared by LAD. Appl. Surf. Sci. 111 (1997) 11-17
13. Gaertner G., and Barratt D. Life-limiting mechanisms in Ba-oxide, Ba-dispenser and Ba-scandate cathodes. Appl. Surf. Sci. 251 (2005) 73-79
14. 3 and W. Appl. Surf. Sci. 146 (1999) 31-38