Accession Number : AD0433657


Title :   DEVELOPMENT OF A FERRITE MATERIAL FOR A HIGHPOWER PHASE SHIFTER AT S-BAND.


Descriptive Note : Final rept., 18 Apr 62-15 Jan 64.


Corporate Author : AIRTRON INC MORRIS PLAINS N J


Report Date : 15 Jan 1964


Pagination or Media Count : 123


Abstract : This report includes the data obtained on gallium and aluminum substituted nickel ferrite. The material which seemed best capable for use in a phase shifter had a total aluminum plus gallium substitution of 0.975 moles. The composition was Ni.98Mn.02Ga.301Al.674Fe1.02504. This material had a Curie temperature of 200 C, a 20 Mc tan delta of approximately 0.003, a saturation magnetization of approximately 970 gauss, and a chi'' at resonance of approximately 4.0 at 930 gauss. This material when hot pressed did not show any decrease in relative susceptability at power levels as high as 2000 KW, whereas magnesium manganese ferrite showed non-linear effects at a power level of 20 KW. (Author)


Descriptors :   *FERRITES , *PHASE SHIFT CIRCUITS , SYNTHESIS(CHEMISTRY) , S BAND , MANUFACTURING , MATERIAL FORMING , PHYSICAL PROPERTIES , DIELECTRIC PROPERTIES , MAGNETIC PROPERTIES , SPINEL , OXIDES , IRON COMPOUNDS , NICKEL COMPOUNDS , ALUMINUM COMPOUNDS , GALLIUM COMPOUNDS , MANGANESE COMPOUNDS , X RAY DIFFRACTION , FLAME SPRAYING , SINTERING


Distribution Statement : APPROVED FOR PUBLIC RELEASE