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

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)

Document Details

Document Type
Technical Report
Publication Date
Jan 15, 1964
Accession Number
AD0433657

Tags

DTIC Thesaurus Topics

  • Aluminum
  • Curie Temperature
  • Elements
  • Magnesium
  • Magnetic Phenomena
  • Magnetic Properties
  • Magnetic Transition Temperatures
  • Magnetization
  • Manganese
  • Materials
  • Metals
  • Power Levels
  • Resonance
  • Saturation

Fields of Study

  • Physics

Readers

  • Electronics Engineering
  • Materials Science and Engineering.
  • Surface Engineering/Surface Coating Technology.

Technology Areas

  • Microelectronics