Accession Number : AD0717686

Title :   Preparation and Electrical Properties of Some Ceramic Materials at Microwave Frequencies.

Descriptive Note : Physical sciences research papers,

Corporate Author : AIR FORCE CAMBRIDGE RESEARCH LABS L G HANSCOM FIELD MASS

Personal Author(s) : Stiglitz,Martin E.

Report Date : 07 DEC 1970

Pagination or Media Count : 17

Abstract : The need for high-dielectric constant, low-loss, temperature-stable ceramic materials for microwave-device application has given impetus to the study of various titanate and oxide mixtures. In the course of this research we have developed a material which has a temperature frequency coefficient of 530 ppm/deg C and a dielectric constant of 106, comparable to the American Lava T-96 Ceramic, but has a higher dielectric constant. Methods for mixing, firing, and aging of ceramic materials, as well as microwave measurement techniques, are presented and results are given in graphic form and tables. These results may be valuable to workers wishing to pursue the development of zero temperature coefficient materials further. (Author)

Descriptors :   (*CERAMIC MATERIALS, MANUFACTURING), (*RESONATORS, CERAMIC MATERIALS), (*TITANATES, *DIELECTRIC PROPERTIES), ELECTRICAL PROPERTIES, RUTILE, TITANATES, STRONTIUM COMPOUNDS, CALCIUM COMPOUNDS

Subject Categories : Ceramics, Refractories and Glass

Distribution Statement : APPROVED FOR PUBLIC RELEASE