Invention Grant
US5828164A Thermionic cathode using oxygen deficient and fully oxidized material
for high electron density emissions
失效
使用氧缺乏和完全氧化的材料用于高电子密度排放的热阴极
- Patent Title: Thermionic cathode using oxygen deficient and fully oxidized material for high electron density emissions
- Patent Title (中): 使用氧缺乏和完全氧化的材料用于高电子密度排放的热阴极
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Application No.: US647502Application Date: 1996-05-14
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Publication No.: US5828164APublication Date: 1998-10-27
- Inventor: Louis E. Branovich , Donald W. Eckart , Paul Fischer
- Applicant: Louis E. Branovich , Donald W. Eckart , Paul Fischer
- Applicant Address: DC Washington
- Assignee: The United States of America as represented by the Secretary of the Army
- Current Assignee: The United States of America as represented by the Secretary of the Army
- Current Assignee Address: DC Washington
- Main IPC: H01J1/28
- IPC: H01J1/28 ; H01J9/04 ; H01J1/14 ; H01J19/06 ; H01K1/04
Abstract:
A method is provided of preparing an impregnated cathode with enhanced thionic emission from a porous billet by impregnating the billed with a suitable impregnant in the presence of an oxygen deficient compound. Additives such as Ir, Os, and Rh react in such a way as to increase emission by reacting to generate oxygen deficient compounds such as WO.sub.2. Moreover, intermediate oxygen sufficient products formed in the chemical reactions can be used as impregnants providing they generate oxygen deficient compounds in the presence of the active emissive material.
Public/Granted literature
- US4048422A Production of copolymer powders from maleic anhydride and 1-olefins Public/Granted day:1977-09-13
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