A Calcium Aluminate Electride Hollow Cathode

  title={A Calcium Aluminate Electride Hollow Cathode},
  author={Lauren Paula Rand and John Dalton Williams},
  journal={IEEE Transactions on Plasma Science},
This paper discusses the development and testing of a C12A7 electride hollow cathode. C12A7:e- is a crystalline ceramic in which electrons clathrated in subnanometer sized cages act as a conductive medium. C12A7:e- has a predicted work function of 0.6 eV and hence is of interest in electron emission devices. A 6-mm diameter hollow cathode was fabricated with a C12A7:e- insert and operated for over 50 h on xenon with no signs of degradation. It was successfully started at room temperature… CONTINUE READING
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LaB6 hollow cathodes for ion and Hall thrusters

  • D. Goebel, R. Watkins, K. Jameson
  • J. Propuls. Power, vol. 23, no. 3, pp. 552–558…
  • 2007
Highly Influential
3 Excerpts

C12A7 electride hollow cathode

  • L. Rand, J. Williams, J. Blakely, B. Beal, D. Brown
  • Proc. 60th JANNAF Propuls. Meeting, 2013.
  • 2013
1 Excerpt

Effect of a low work function insert on hollow cathode temperature and operation

  • L. Rand, J. Williams
  • Proc. 49th AIAA/ASME/SAE/ASEE Joint Propuls. Conf…
  • 2013
1 Excerpt

Iodine propellant space propulsion

  • J. Szabo, M. Robin, S. Paintal, B. Pote, V. Hruby, C. Freeman
  • Proc. 33rd Int. Electr. Propuls. Conf., 2013.
  • 2013
2 Excerpts

High density Hall thruster propellant investigations

  • J. Szabo, M. Robin, S. Paintal, B. Pote, V. Hruby
  • Proc. 48th AIAA/ASME/SAE/ASEE Joint Propuls. Conf…
  • 2012
1 Excerpt

Performance evaluation of an iodine-vapor Hall thruster

  • J. Szabo
  • J. Propuls. Power, vol. 28, no. 4, pp. 848–857…
  • 2012
1 Excerpt

Hollow cathode with electride insert

  • L. Rand, J. Williams, R. Hoyt
  • Proc. 47th AIAA/ASME/SAE/ASEE Joint Propuls. Conf…
  • 2011
1 Excerpt

Ultra low work function, nonconsumable insert for hollow cathodes formed from C12A7 electride

  • L. Rand, X. Qian, J. Williams
  • Proc. 57th JANNAF Propuls. Meeting, 2010.
  • 2010
1 Excerpt

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