Accession Number : ADA019200
Title : Manufacturing Methods and Technology Measure Arc - Plasma - for Sprayed Phase - Shifter Elements.
Descriptive Note : Quarterly progress rept. no. 1, 27 Jun-30 Sep 75,
Corporate Author : RAYTHEON CO WALTHAM MASS RESEARCH DIV
Personal Author(s) : VanHook,H. J. ; Lesensky,L. ; Miller,H.
Report Date : OCT 1975
Pagination or Media Count : 56
Abstract : Nonmagnetic Li-Ti ferrite dielectrics have been processed, fired and ground to final dimensions in preparation for arc plasma spraying (APS). Thermal expansion data are given on a series of compositions with variations in alumina content. The ferrite powder to be used for APS coating has been examined by SEM and X-ray fluorescent analysis. We report data on microwave and other properties of a series of phase shifter elements produced at USAECOM laboratories. Different firing schedules were investigated to determine the optimum trade-off in properties. Work is nearing completion on design and construction of APS equipment which will allow a series of samples to be sprayed and immediately fired according to the required schedule. (Author)
Descriptors : *Phase shift circuits, *Plasma spraying, *Arc spraying, Manufacturing, Coatings, Microwave equipment, Dielectrics, Ferrites, Lithium, Alumina, Powders
Subject Categories : Electrical and Electronic Equipment
Coatings, Colorants and Finishes
Distribution Statement : APPROVED FOR PUBLIC RELEASE