Accession Number : AD0719174

Title :   Effects of Zinc on the Switching Properties of Lithium Ferrite.

Descriptive Note : Research and development technical rept.,

Corporate Author : ARMY ELECTRONICS COMMAND FORT MONMOUTH N J

Personal Author(s) : Babbitt,Richard W.

Report Date : NOV 1970

Pagination or Media Count : 20

Abstract : The paper discusses the effects of Zn substitution on the switching and hysteresis loop properties of lithium ferrite cores. The Zn reduced the coercive force and thus permitted the use of smaller grains and hence faster switching time (ts). The compositions investigated were: Li(0.5-x/2)Zn(x)Fe(2.5-x/2)04 with x = 0.1, 0.2, and 0.3. Samples were evaluated for grain sizes ranging from 1 to 6 microns. As the grain size was decreased, t sub s decreased and the required drive field (H sub m) increased. Over a substantial range of grain sizes, the decrease in t sub s was faster than the increase in (H sub m). Also discussed are the effects of Zn substitution on the hysteresis loop squareness and temperature stability. (Author)

Descriptors :   (*MAGNETIC CORES, SWITCHING CIRCUITS), (*FERRITES, MAGNETIC PROPERTIES), LITHIUM COMPOUNDS, ZINC COMPOUNDS, FERRATES, HYSTERESIS, GRAIN SIZE, THERMAL STABILITY

Subject Categories : Inorganic Chemistry
      Electrical and Electronic Equipment
      Electricity and Magnetism

Distribution Statement : APPROVED FOR PUBLIC RELEASE