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Preparation of nano-particle carbonates emission materials

Wang Xiao-Xia Luo Ji-Run Zhao Qing-Lan Wang Qi-Fu

Preparation of nano-particle carbonates emission materials

Wang Xiao-Xia, Luo Ji-Run, Zhao Qing-Lan, Wang Qi-Fu
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  • Abstract views:  2706
  • PDF Downloads:  861
  • Cited By: 0
Publishing process
  • Received Date:  25 November 2009
  • Accepted Date:  19 January 2010
  • Published Online:  05 May 2010

Preparation of nano-particle carbonates emission materials

  • 1. (1)Key Laboratory of High Power Microwave Sources and Technologies, Institute of Electronics,Chinese Academy of Sciences, Beijing 100190, China; (2)Key Laboratory of High Power Microwave Sources and Technologies, Institute of Electronics,Chinese Academy of Sciences, Beijing 100190, China, Graduate University of Chinese Academy of Sciences, Beijing 100039, China

Abstract: Oxide cathode has been widely used as electron emission source in vacuum electronic devices. Emission of an oxide cathode is dependent upon the ratio of the three kinds of ingredients and the microscopic shape of alkaline earth carbonates on the cathode surface. The synthesizing method plays a key role in dctermining the shape and ingredient of the carbonates. A gas-liquid synthetic method has been used to prepare the carbonate in this paper. The influences of temperature, concentration of constituents and whisk velocity were investigated. A nano-particle carbonate is synthesized by optimizing temperature and concentration.

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