Accession Number:

AD0802961

Title:

INVESTIGATION OF THE STOICHIOMETRIC AND STRUCTURAL VARIABLES WHICH AFFECT CONDUCTIVITY IN FERROMAGNETIC CERAMIC MATERIALS FOR USE IN MAGNETIC CIRCUITS.

Descriptive Note:

Technical rept. May 60-May 61,

Corporate Author:

GENERAL ELECTRIC RESEARCH LAB SCHENECTADY NY

Report Date:

1961-05-01

Pagination or Media Count:

85.0

Abstract:

Results of investigations of the electrical resistivity, thermoelectric power, thermal conductivity, optical reflectivity, and absorption as functions of temperature are reported for magnetite and cobalt iron ferrites prepared as high-purity single crystals with controlled stoichiometry. New data are compared with those in the literature. The influence of the magnetic transition on thermal conductivity in the ferrites is deduced by a comparison with data for nonmagnetic spinels. An idealized model for the electrical properties is partially developed from the electrical and optical results. Author

Subject Categories:

  • Crystallography

Distribution Statement:

APPROVED FOR PUBLIC RELEASE