Invention Grant
- Patent Title: Impregnated yttric or gadolinium-containing Barium-aluminum-scandate cathodes and their fabrication methods
- Patent Title (中): 浸渍钇或钆钡铝钪阴极及其制造方法
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Application No.: US13340701Application Date: 2011-12-30
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Publication No.: US09349561B2Publication Date: 2016-05-24
- Inventor: Jinshu Wang , Wei Liu , Fan Yang , Xiang Liu , Hongyi Li , Meiling Zhou , Tieyong Zuo
- Applicant: Jinshu Wang , Wei Liu , Fan Yang , Xiang Liu , Hongyi Li , Meiling Zhou , Tieyong Zuo
- Applicant Address: CN Beijing
- Assignee: BEIJING UNIVERSITY OF TECHNOLOGY
- Current Assignee: BEIJING UNIVERSITY OF TECHNOLOGY
- Current Assignee Address: CN Beijing
- Agency: Han IP Corporation
- Priority: CN201110341108 20111102
- Main IPC: H01J1/14
- IPC: H01J1/14 ; H01J1/142 ; H01J1/13 ; H01J1/144 ; H01J9/04 ; H01J23/05
Abstract:
Impregnated rare earth metal-containing barium-aluminum-scandate cathodes with a rare earth oxide doped tungsten matrix and methods for the fabrication thereof are described. In one aspect, an impregnated rare earth metal-containing barium-aluminum-scandate cathode comprises: a rare earth oxide doped tungsten matrix, and an impregnated active substance. The active substance comprises scandium oxide (Sc2O3), a second rare earth oxide, and barium calcium aluminate, wherein the molar ratio of Ba:Ca:Al is about 4:1:1.
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