Accession Number : AD0696171

Title :   THE USE OF RHENIUM AND ITS ALLOYS IN ELECTRONIC VACUUM DEVICES,

Corporate Author : FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OHIO

Personal Author(s) : Kiselev,A. V. ; Nikonov,V. P.

Report Date : 23 APR 1969

Pagination or Media Count : 18

Abstract : The article reviews the applications of rhenium and its alloys in cathode electronics and their use as structural parts of electronic devices, etc. The properties of rhenium as a thermionic emitter are discussed and compared to those of tungsten, tantalum, and molybdenum. The emissive properties of rhenium-barium cathodes are described. The uses of rhenium as base material for high-temperature cathodes are treated at length; the thermionic emission characteristics of rhenium-, tantalum-, niobium-, and molybdenum-base cathodes coated with thorium oxide, yttrium oxide, lanthanum oxide, and europium oxide are compared. Rhenium is also discussed as a field emitter, and as a material for heating elements when it is alloyed with tungsten.

Descriptors :   (*ELECTRON TUBE PARTS, *RHENIUM), (*RHENIUM ALLOYS, ELECTRON TUBE PARTS), CATHODES(ELECTRON TUBES), THERMIONIC EMISSION, RARE EARTH COMPOUNDS, OXIDES, COATINGS, BARIUM, TUNGSTEN ALLOYS, USSR

Subject Categories : Electrical and Electronic Equipment

Distribution Statement : APPROVED FOR PUBLIC RELEASE