Accession Number : AD0869174

Title :   Tube Failure Mechanisms.

Descriptive Note : Final rept. 1 May 68-30 Sep 69,

Corporate Author : RAYTHEON CO WALTHAM MA MICROWAVE AND POWER TUBE DIV

Personal Author(s) : Bouchard, Kenneth G. ; Lesensky, Leonard ; Weihrauch, Paul

Report Date : 25 MAR 1970

Pagination or Media Count : 98

Abstract : The investigation focused attention on (1) high voltage breakdown in vacuum as it occurs across vacuum gaps and along insulating surfaces and (2) surface studies of metal-oxide composite cathodes, as exemplified by the tungsten-thoria (W-ThO2) cermet cathode, pertaining to the chemical and topographical changes resulting from heat and electron bombardment. (Author)

Descriptors :   (*ELECTRON TUBES, FAILURE(ELECTRONICS)), CATHODES(ELECTRON TUBES), CERMETS, COPPER, SURFACE PROPERTIES, ELECTRIC DISCHARGES, DIFFUSION, PLATINUM, TUNGSTEN, TITANIUM ALLOYS.

Subject Categories : Electrical and Electronic Equipment

Distribution Statement : APPROVED FOR PUBLIC RELEASE