Preparation of nano-particle carbonates emission materials

被引：4

作者：

Wang Qi-Fu ^{[1
,2
]}

Wang Xiao-Xia ^{[1
]}

Luo Ji-Run ^{[1
]}

Zhao Qing-Lan ^{[1
]}

机构：

[1] Chinese Acad Sci, Inst Elect, Key Lab High Power Microwave Sources & Technol, Beijing 100190, Peoples R China

[2] Chinese Acad Sci, Grad Univ, Beijing 100039, Peoples R China

来源：

ACTA PHYSICA SINICA | 2010年 / 59卷 / 10期

基金：

中国国家自然科学基金;

关键词：

gas-liquid synthetic method; nano-particle carbonate; crystal; oxide cathode; NANOSTRUCTURES;

D O I：

10.7498/aps.59.7383

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

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 determining 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.

引用

页码：7383 / 7389

页数：7

共 21 条

[1] Syntheses of BaCO3 nanostructures by ultrasonic method
Alavi, Mohammad Amiri
Morsali, Ali
[J]. ULTRASONICS SONOCHEMISTRY, 2008, 15 (05) : 833 - 838
[2] [Anonymous], 1984, J ELECT SCI
[3] Simulation of pulse shortening phenomena in high power microwave tube using PIC method
Gong, YB
Zhang, Z
Wei, YY
Meng, FB
Fan, ZK
Wang, WX
[J]. ACTA PHYSICA SINICA, 2004, 53 (11) : 3990 - 3995
[4] [姜鲁华 Jiang Luhua], 2002, [功能材料, Journal of Functional Materials], V33, P545
[5] Microwave synthesis of SrCO3 one-dimensional nanostructures assembled from nanocrystals using ethylenediamine additive
Ma, Ming-Guo
Zhu, Ying-Jie
[J]. MATERIALS LETTERS, 2008, 62 (15) : 2512 - 2515
[6] Fabrication and characterization of BaCO3 nanostructures
Ma, Ming-Guo
Zhu, Ying-Jie
Cheng, Guo-Feng
Huang, Yue-Hong
[J]. MATERIALS LETTERS, 2008, 62 (17-18) : 3110 - 3113
[7] The base metal of the oxide-coated cathode
Poret, F
Roquais, JM
[J]. APPLIED SURFACE SCIENCE, 2005, 251 (1-4) : 31 - 41
[8] REN J, 2005, SCI TECHNOLOGY PARTI
[9] THE EMISSION CARBONATE CRYSTALLITE AND OXIDE CATHODE PERFORMANCE IN ELECTRON-TUBES
SHAFER, D
TURNBULL, J
[J]. APPLIED SURFACE SCIENCE, 1981, 8 (1-2) : 225 - 230
[10] An easy method to prepare nanowire
Wang, L
Zhu, YF
[J]. CHEMISTRY LETTERS, 2003, 32 (07) : 594 - 595

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