Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/25613
Title: Improved dielectric properties of BaxSr1-xTiO3-based composite ceramics derived from core-shell structured nanopowders
Authors: Tian, H
Qi, J
Wang, Y 
Chan, HLW 
Choy, CL 
Issue Date: 2005
Source: Progress in solid state chemistry, 2005, v. 33, no. 2-4 SPEC. ISS., p. 207-215 How to cite?
Journal: Progress in Solid State Chemistry 
Abstract: We performed a study on the dielectric properties of BaxSr1-xTiO3-Mg0.9Zn0.1O (BST-MZO) composite ceramics derived from core-shell structured nanopowders with the shell of zinc doped MgO and core of BaxSr1-xTiO3. It was found that the ceramics exhibit a significant improvement in dielectric response under a DC electric field. The Curie temperature decreases more significantly in the BST-MZO composite ceramics compared to that of pure BST ceramics. The tunability of Ba0.75Sr0.25TiO3-40%MZO is 23.49% at 20 °C. The dielectric properties at high frequency also show low dielectric constant and great reduction in dielectric loss. These ceramics are expected to be useful in microwave devices.
URI: http://hdl.handle.net/10397/25613
ISSN: 0079-6786
DOI: 10.1016/j.progsolidstchem.2005.11.019
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