NDLI: Preparation of the REO-Mo secondary emitter with sub-micro structure by SPS method

Content Provider	IEEE Xplore Digital Library
Author	Wei Liu Jinshu Wang Na Li Jiuxing Zhang Meiling Zhou
Copyright Year	2004
Description	Author affiliation: Sch. of Mater. Sci. & Eng., Beijing Univ. of Technol., China (Wei Liu; Jinshu Wang; Na Li; Jiuxing Zhang; Meiling Zhou)
Abstract	Millimeter wave magnetron has exhibited promising prospect in its application. Due to intensive electron back-bombardment in millimeter wave magnetron, Ba-W dispenser cathodes may not be ideal long-acting electron source in such devices. The traditional Th-W cathode encounters fatal shortcoming of radioactivity. REO-Mo metal-ceramic cathode is one of the hopeful cathodes for millimeter wave magnetron because of their shortage of natural radioactivity background and lower cost than recently developed Ir-La alloy cathode. Investigations from Wang showed the low susceptivity of REO-Mo metal ceramic cathodes to electron bombardment and the dependence of secondary emission property on the distribution of different ingredient and microstructure of materials. Therefore, in this work, attempts are made to prepare the REO-Mo metal ceramic cathodes with fine sub-micro structure on the basis of precursor rare oxide doped molybdenum powder synthesized by a sol-gel and two-step method.
Starting Page	209
Ending Page	210
File Size	148398
Page Count	2
File Format	PDF
ISBN	0780384377
DOI	10.1109/IVESC.2004.1414201
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2004-09-06
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Millimeter wave devices Costs Millimeter wave technology Magnetic devices Inorganic materials Ceramics Electron emission Electron sources Microstructure Cathodes
Content Type	Text
Resource Type	Article

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