Accession Number : ADA297282

Title :   Thin Films of Novel Ferroelectric Composites,

Corporate Author : ARMY RESEARCH LAB WATERTOWN MA MATERIALS DIRECTORATE

Personal Author(s) : Sengupta, S. ; Sengupta, L. C. ; Stowell, S. ; Vijay, D. P. ; Desu, S. B.

PDF Url : ADA297282

Report Date : MAY 1995

Pagination or Media Count : 13

Abstract : Composites of BSTO combined with other non electrically active oxides have demonstrated adjustable electronic properties which can be tailored for use in various electronic devices. These novel composites of barium strontium titanate (BSTO) and Oxide III compounds have already exhibited promising results in their ceramic form. The additive oxides modify the dielectric constant, tunability (change in the dielectric constant with applied voltage), and dielectric loss of the material. One application has been for use in phased array antennas and insertion has been accomplished into several working antenna systems. To further accommodate the frequencies required by these phased array antennas, thin films of the composites have been fabricated. Preliminary studies have indicated that thin films of such composites exhibit similar behavior as their bulk ceramic counterparts. The purpose of this study is to investigate the properties of the BSTO/Oxide III based compounds in thin film form. (MM)

Descriptors :   *COMPOSITE MATERIALS, *THIN FILMS, *FERROELECTRIC MATERIALS, ELECTROMAGNETIC PROPERTIES, DIELECTRICS, ELECTRICAL PROPERTIES, DIELECTRIC PROPERTIES, OXIDES, BARIUM TITANATES, RADIO WAVES, ANTENNA ARRAYS, BARIUM COMPOUNDS, PHASED ARRAYS, STRONTIUM COMPOUNDS.

Subject Categories : Electrical and Electronic Equipment
      Electricity and Magnetism

Distribution Statement : APPROVED FOR PUBLIC RELEASE