Mechanical and microstructural evaluation of barium strontium titanate thin films for improved antenna performance and reliability / C.W. Hubbard [and others].

Format:

Book

Government document

Contributor:

Hubbard, C. W.

U.S. Army Research Laboratory

Series:

ARL-TR (Aberdeen Proving Ground, Md.) ; 1360.

ARL-TR ; 1930

Language:

English

Subjects (All):

Thin films--Microstructure.

Thin films.

Ferroelectric crystals.

Phased array antennas.

Materials--Mechanical properties.

Materials.

Physical Description:

1 online resource (vi, 14 pages) : illustrations

Place of Publication:

Aberdeen Proving Ground, MD : Army Research Laboratory, [1999]

Summary:

Ferroelectric barium strontium titanate (Ba(1-x)SrxTiO3 BSTO) films of 1-micron nominal thickness were deposited on single crystals of sapphire and electroded substrates at substrate temperatures varying from 30 deg C to 700 deg C. The microstructure of the thin films was columnar at all substrate deposition temperatures. The film microhardness showed a trend toward increased hardness with substrate temperature. Furthermore, with the elevation in substrate temperature, there was a parallel increase in film-substrate adhesion measurements, while the cohesion measurements were not influenced by substrate temperature.

Notes:

Title from title screen (viewed on Apr 25, 2012).

"April 1999."

Includes bibliographical references (page 9).

Other Format:

Print version: Mechanical and microstructural evaluation of barium strontium titanate thin films for improved antenna performance and reliability

OCLC:

227890228