Influence of the Spark Plasma Sintering temperature on the structure and dielectric properties of BaTi(1-x)ZrxO3 ceramics

In this work, structural and dielectric properties of BaTi(1-x)ZrxO3 (BTZ) ceramics prepared by Spark Plasma Sintering (SPS) from powders obtained via Self-propagating High-temperature Synthesis (SHS) are shown to be strongly affected by the sintering temperature. In addition, a post-annealing treat...

Full description

Saved in:
Bibliographic Details
Published in:Ceramics international 2021-02, Vol.47 (3), p.3614-3625
Main Authors: Ezealigo, Blessing N., Orrù, Roberto, Elissalde, Catherine, Debéda, Hélène, Chung, U-Chan, Maglione, Mario, Cao, Giacomo
Format: Article
Language:English
Subjects:
Chemical Sciences
Dielectric permittivity
Material chemistry
Piezoelectric
Post-annealing
Self-propagating high-temperature synthesis
Spark plasma sintering
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:In this work, structural and dielectric properties of BaTi(1-x)ZrxO3 (BTZ) ceramics prepared by Spark Plasma Sintering (SPS) from powders obtained via Self-propagating High-temperature Synthesis (SHS) are shown to be strongly affected by the sintering temperature. In addition, a post-annealing treatment in air of the as-prepared ceramics leads to a transition from the hexagonal to the tetragonal and cubic phases. The SPS ceramics corresponding to compositions 0.05 ≤ x ≤ 0.20 and obtained at a sintering temperature of 1200 °C exhibit a standard ferroelectric behavior. In contrast, a diffuse phase transition is observed for the case of ceramics sintered at higher temperatures. Finally, the BTZ ceramic containing 5 at.% of Zr displays the best dielectric permittivity and piezoelectric properties as compared to the other compositions taken into account.
ISSN:0272-8842
1873-3956
DOI:10.1016/j.ceramint.2020.09.210