Accession Number:

ADA025312

Title:

Electrical Properties of Polycrystalline Ceramic Insulators.

Descriptive Note:

Technical rept.,

Corporate Author:

FLORIDA UNIV GAINESVILLE DEPT OF MATERIALS SCIENCE AND ENGINEERING

Report Date:

1976-04-01

Pagination or Media Count:

26.0

Abstract:

Various models developed to treat the electrical properties of heterogenous systems are briefly reviewed. It is asserted that none of these models can be adequately applied or tested for a particular material without an adequate, quantitative microstructural description. The microstructural parameters of interest for a two-phase system of grains, pores and grain boundaries are described. Polycrystalline Al2O3 has been chosen as a model system a variety of samples with systematically related microstructures have been prepared by hot-pressing. AC electrical properties have been measured for some of these samples and microstructural analysis is underway. Correlations and the model testing will follow once sufficient microstructural data have been obtained. Author

Subject Categories:

  • Ceramics, Refractories and Glass
  • Electricity and Magnetism

Distribution Statement:

APPROVED FOR PUBLIC RELEASE