An Ammonium Perrhenate Impregnated Ni Sponge Oxide Cathode

被引：0

作者：

Wang, Xiaoxia ^{[1
]}

Zhao, Qinglan ^{[1
]}

Luo, Jirun ^{[1
]}

Liao, Xianheng ^{[1
]}

Li, Yun ^{[1
]}

Zhang, Qi ^{[1
]}

机构：

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

来源：

2013 IEEE 14TH INTERNATIONAL VACUUM ELECTRONICS CONFERENCE (IVEC) | 2013年

关键词：

Oxide Cathode; Ammonium perrhenate (NH4ReO4); High Emission Current; Lifetime;

D O I：

暂无

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 this paper we mainly describes the research progress in a kind of ammonium perrhenate impregnated Ni sponge oxide cathode, which includes the preparation of Ni-Re sponge layer by impregnated ammonium perrhenate solution and the cathode properties testing. The testing results show that the pc emission current density of the cathode reaches 35.6A/cm(2) with a 10 mu s pulse width at a temperature of 850 square and that the emission current, after 3000h lifetime at a temperature of 800 square, has decreased less than 5% with 1.63 A/cm(2) DC current.

引用

页数：2

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