Virtual Bookstore Citation Title MECHANICAL AND MICROSTRUCTURAL EVALUATION OF BARIUM STRONTIUM TITANATE THIN FILMS FOR IMPROVED ANTENNA PERFORMANCE AND RELIABILITY Author(s) Hubbard, C. W.; Fountzoulas, C. G.; Cole, M. W.; Sengupta, S. Corporate Author(s) ARMY RESEARCH LAB ABERDEEN PROVING GROUND MD Report Date 4/1/1999 Page Count 23 Abstract Ferroelectric barium strontium titanate (Ba(1-x)SrxTiO3 BSTO) films of1-micron nominal thickness were deposited on single crystals of sapphire andelectroded substrates at substrate temperatures varying from 30 deg C to 700 degC. The microstructure of the thin films was columnar at all substrate depositiontemperatures. The film microhardness showed a trend toward increased hardnesswith substrate temperature. Furthermore, with the elevation in substratetemperature, there was a parallel increase in film-substrate adhesionmeasurements, while the cohesion measurements were not influenced by substratetemperature. Price: $9.95 Available as PDF for download.   Prices are plus sales tax when purchased within New York State and shipping charges, if applicable