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Author:

Zhu, Xiaoce (Zhu, Xiaoce.) | Wang, Yiman (Wang, Yiman.) | Liu, Wei (Liu, Wei.) | Yang, Fan (Yang, Fan.) | Liu, Xiang (Liu, Xiang.) | Wang, Jinshu (Wang, Jinshu.) (Scholars:王金淑)

Indexed by:

CPCI-S

Abstract:

In order to improve the mechanical strength and machining properties of Scandia Doped Dispenser (SDD) cathodes when they are applied into Vacuum Electron Devices (VEDs), an effort has been expended to increase the W grain sizes while maintaining the uniform doping of nanosized Scandia particle. By an improved liquid-solid (L-S) doping process, powders composed of W grains of about 1-2 micron in diameters with uniformly distributed nanosized scandium oxide particles have been fabricated. Cathodes constructed by above powders exhibited better properties in machining operations like lathing, and similar emission characteristics to that of SDD cathodes made from the powders with liquid-liquid doping methods.

Keyword:

scandate cathodes electron emission mechanical strength vacuum electron device

Author Community:

  • [ 1 ] [Zhu, Xiaoce]Beijing Univ Technol, Sch Mat Sci & Engn, 100 Pingleyuan, Beijing 100124, Peoples R China
  • [ 2 ] [Wang, Yiman]Beijing Univ Technol, Sch Mat Sci & Engn, 100 Pingleyuan, Beijing 100124, Peoples R China
  • [ 3 ] [Liu, Wei]Beijing Univ Technol, Sch Mat Sci & Engn, 100 Pingleyuan, Beijing 100124, Peoples R China
  • [ 4 ] [Yang, Fan]Beijing Univ Technol, Sch Mat Sci & Engn, 100 Pingleyuan, Beijing 100124, Peoples R China
  • [ 5 ] [Liu, Xiang]Beijing Univ Technol, Sch Mat Sci & Engn, 100 Pingleyuan, Beijing 100124, Peoples R China
  • [ 6 ] [Wang, Jinshu]Beijing Univ Technol, Sch Mat Sci & Engn, 100 Pingleyuan, Beijing 100124, Peoples R China

Reprint Author's Address:

  • 王金淑

    [Wang, Jinshu]Beijing Univ Technol, Sch Mat Sci & Engn, 100 Pingleyuan, Beijing 100124, Peoples R China

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Source :

2015 IEEE INTERNATIONAL VACUUM ELECTRONICS CONFERENCE (IVEC)

Year: 2015

Language: English

Cited Count:

WoS CC Cited Count: 0

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 6

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