Title of article
Correlation of the microstructure and microwave properties of Ba0.6Sr0.4TiO3 thick-films
Author/Authors
Zhou، نويسنده , , X. and Sazegar، نويسنده , , M. and Stemme، نويسنده , , F. and Hauكelt، نويسنده , , J. and Jakoby، نويسنده , , R. and Binder، نويسنده , , J.R.، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2012
Pages
8
From page
4311
To page
4318
Abstract
The influence of the microstructure of screen-printed Ba0.6Sr0.4TiO3 ceramic thick-films on their microwave properties has been investigated. The Ba0.6Sr0.4TiO3 powders were synthesized through a sol–gel route. The spray-dried precursors were calcined at different temperatures. Scanning electron microscopy images and BET measurements revealed the primary particle size of calcined powder depending on the calcination temperature. The Ba0.6Sr0.4TiO3 thick-films showed different microstructure after sintering due to the use of two different calcined BST powders as well as varying the sintering conditions. Permittivity, dielectric loss and tunability of thick-films were characterized with coplanar waveguide structures up to 40 GHz. A correlation of microstructure and microwave properties of the thick-films has been observed. Particularly the tunability could be improved by an optimized microstructure.
Keywords
BST , grain size , Thick-film , Tunable ferroelectrics , microwave properties
Journal title
Journal of the European Ceramic Society
Serial Year
2012
Journal title
Journal of the European Ceramic Society
Record number
1414627
Link To Document