Thermionic Emission of a Novel Y2Hf2O7 Ceramic Cathode Applied in High-Power Magnetron Tubes

被引：0
|
作者：
Qi, Shikai [1 ]
Wang, Xiaoxia [2 ]
Wang, Xingqi [2 ]
Hu, Mingwei [3 ]
Zeng, Wei [1 ]
Liu, Li [1 ]
机构：
[1] Jiujiang Univ, Inst Elect Engn, Jiujiang 332005, Peoples R China
[2] Chinese Acad Sci, Inst Elect, Key Lab High Power Microwave Sources & Technol, Beijing 100190, Peoples R China
[3] Xidian Univ, Sch Phys & Optoelect Engn, Xian 710071, Peoples R China
来源：
2020 IEEE 21ST INTERNATIONAL CONFERENCE ON VACUUM ELECTRONICS (IVEC 2020) | 2020年
关键词：
Magnetron; cathode; thermionic emission; lifetime; Y2Hf2O7;
D O I：
10.1109/IVEC45766.2020.9520552
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
In order to enhance output power and prolong lifetime of the high power magnetron tubes, a novel Y2Hf2O7 Ceramic cathode had been developed. The thermionic emission and lifetime characteristics of the Y2Hf2O7 cathode had been measured. The results show that the cathode can provide 0.15A/cm(2) , 3.5A/cm(2) current density for the space charge limitation at 1300 degrees Cbr, 1600 degrees C br respectively under 300V anode voltage. The lifetime of the cathode is more than 4100 h with an initial load of 0.5A/cm(2) at 1400 degrees Cbr.
引用
收藏
页码：367 / 368
页数：2
相关论文
共 50 条
  • [41] High power continuous-wave Yb:Y2O3 ceramic disc laser
    Qi, Y.
    Lou, Q.
    Zhou, J.
    Dong, J.
    Wei, Y.
    ELECTRONICS LETTERS, 2009, 45 (24) : 1238 - 1239
  • [42] Measurement and modeling of plasma parameters in reactive high-power impulse magnetron sputtering of Ti in Ar/O2 mixtures
    Cada, M.
    Lundin, D.
    Hubicka, Z.
    JOURNAL OF APPLIED PHYSICS, 2017, 121 (17)
  • [43] High efficiency emission of a laser based on Yb-doped (Lu,Y)2O3 ceramic
    Toci, Guido
    Pirri, Angela
    Patrizi, Barbara
    Maksimov, Roman N.
    Osipov, Vladimir V.
    Shitov, Vladislav A.
    Yurovskikh, Artern S.
    Vannini, Matteo
    OPTICAL MATERIALS, 2018, 83 : 182 - 186
  • [44] K2VOP2O7 as a novel high-voltage cathode material for potassium ion batteries
    He, Haiyan
    Cao, Kuo
    Zeng, Sihan
    Si, Juntao
    Zhu, Yiran
    Chen, Chun-Hua
    JOURNAL OF POWER SOURCES, 2023, 587
  • [45] Novel High Conductive Ceramic Materials Based on Two-Layer Perovskite BaLa2In2O7
    Tarasova, Nataliia
    Bedarkova, Anzhelika
    Animitsa, Irina
    Abakumova, Ekaterina
    Belova, Ksenia
    Kreimesh, Hala
    INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES, 2022, 23 (21)
  • [46] CARBON IN YBA2CU3O7-Y HIGH-T(C) CERAMIC SUPERCONDUCTORS
    RUDKOVSKAYA, LM
    RASUMOVSKAYA, ON
    FESENKO, EG
    FERROELECTRICS, 1992, 131 (1-4) : 353 - 361
  • [47] Degradation of LiNi0.8Co0.2O2 cathode surfaces in high-power lithium-ion batteries
    Kostecki, R
    McLarnon, F
    ELECTROCHEMICAL AND SOLID STATE LETTERS, 2002, 5 (07) : A164 - A166
  • [48] Facile synthesis of porous LiMn2O4 spheres as cathode materials for high-power lithium ion batteries
    Wang, YaZhou
    Shao, Xuan
    Xu, HaiYan
    Xie, Ming
    Deng, SiXu
    Wang, Hao
    Liu, JingBing
    Yan, Hui
    JOURNAL OF POWER SOURCES, 2013, 226 : 140 - 148
  • [49] Microstructure, mechanical property and bonding mechanism of SiC ceramic joint using a novel Y2Si2O7/Mullite glass-ceramic interlayer
    Sun, Liangbo
    Wang, Shuohao
    Hou, Chuanmei
    Wang, Dongbao
    Liu, Chunfeng
    Zhang, Xinghong
    Zhang, Jie
    CERAMICS INTERNATIONAL, 2023, 49 (11) : 17885 - 17893
  • [50] A novel design of oxidation protective β-Y2Si2O7 nanowire toughened Y2SiO5/Y2O3-Al2O3-SiO2 glass ceramic coating for SiC coated carbon/carbon composites
    Zhou, Lei
    Huang, Jianfeng
    Cao, Liyun
    Hao, Wei
    Wu, Wanchen
    CORROSION SCIENCE, 2018, 135 : 233 - 242
12345