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VACUUM ›› 2022, Vol. 59 ›› Issue (4): 76-79.doi: 10.13385/j.cnki.vacuum.2022.04.14

• Vacuum Technology Application • Previous Articles     Next Articles

Preparation of Molten Heater Assembly

LIU Yan-wen1, MENG Ming-feng1, ZHANG Xiao-lin1, ZHU Hong1, WANG Guo-jian1,2, ZHAO Heng-bang1, WANG Xiao-xia1, ZHANG Zhi-qiang1   

  1. 1. Aerospace Information Research Institute,Chinese Academy of Sciences,Beijing 100190,China;
    2. University of the Chinese Academy of Sciences,Beijing 100049,China
  • Received:2021-09-22 Online:2022-07-25 Published:2022-08-09

Abstract: Microwave vacuum electronic devices are used in a wide variety of areas such as radar, space technology and electron accelerators. The heater assembly is one of the cores for the vacuum electronic devices. Their performances directly determine the reliability and lifetime of the electronic devices. A strategy to develop a new type of method for heater assembly is proposed in order to overcome the shortcomings of traditional heater assembly preparation process. High temperature vacuum sintering technology is used to melt the heater and the insulating material together, which improves the compactness of the heater assembly, reduces the adsorption of residual gas, enhances the impact resistance of the heater assembly, and overcomes the shortcomings of brittleness of the heater.

Key words: microwave vacuum device, thermal cathode, heater assembly, vacuum sintering

CLC Number: 

  • TN103
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