FIELD: electronics. SUBSTANCE: invention refers to manufacture of oxide cathodes for electron guns. In process of manufacture of oxide cathodes suspension containing triple carbonate of alkali-earth metals is injected with scandium nitrate (less than 5 per cent by mass) or indium nitrate (less than 2.5 per cent by mass) in the form of solution which is added drop by drop. EFFECT: improved quality of oxide cathodes.
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Authors
Dates
1996-05-20—Published
1990-12-07—Filed