Accession Number : ADD007734

Title :   Method for Forming a Drive Hole in Arc Plasma Spray Fabricated Ferrite Phasors.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE ARMY WASHINGTON DC

Personal Author(s) : Babbitt,Richard W

Report Date : 25 Dec 1979

Pagination or Media Count : 4

Abstract : This patent discloses a method for forming a drive wire hole in a ferrite toroid phase shifter adapted to operate in the millimeter frequency range. The ferrite toroid is fabricated by the arc plasma spray process. A slab of boron nitride is initially bonded to the dielectric insert of the ferrite toroid and the ferrite powder is arc plasma sprayed on the composite boron nitride-dielectric structure. The formed ferrite toroid is then annealed, and during the annealing process, the boron nitride slab is completely sublimated to form the required drive wire hole. (Author)

Descriptors :   *Patents, *Material forming, *Holes(Openings), *Drives, *Arc spraying, Powders, Plasma spraying, Phase shift, Dielectrics, Inventions, Ferrites, Annealing, Frequency bands, Boron nitrides, Methodology, Toroids, Processing

Subject Categories : Mfg & Industrial Eng & Control of Product Sys

Distribution Statement : APPROVED FOR PUBLIC RELEASE