Accession Number : ADD012876
Title : Method of Making a Long Life High Current Density Cathode from Tungsten and Iridium Powders Using a Barium Iridiate as the Impregnant.
Descriptive Note : Patent Application,
Corporate Author : DEPARTMENT OF THE ARMY WASHINGTON DC
Personal Author(s) : Branovich,Louis E ; Freeman,Gerard L ; Smith,Bernard
Report Date : 15 Apr 1987
Pagination or Media Count : 9
Abstract : The general object of this invention is to provide a method of increasing the life and current density of the cathode of S.N. 023,161. A more particular object of the invention is to provide a method of making a long life high current density cathode for millimeter and microwave applications. It has now been found that the aforementioned objects can be attained by impregnating a tungsten-iridium billet with a barium iridiate. More particularly, according to the invention, a long life high current density cathode suitable for operation in millimeter and microwave applications is made from a mixture of tungsten and iridium powders using a barium iridiate. Keywords: Patent application.
Descriptors : *PATENT APPLICATIONS, *IRIDIUM, *MICROWAVES, *TUNGSTEN, *CATHODES, BARIUM, POWDERS, MIXTURES, IMPREGNATION, INVENTIONS
Subject Categories : Electrical and Electronic Equipment
Distribution Statement : APPROVED FOR PUBLIC RELEASE