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

被引：10

作者：

Ezealigo, Blessing N. ^{[1
]}

Orru, Roberto ^{[1
]}

Elissalde, Catherine ^{[2
]}

Debeda, Helene ^{[3
]}

Chung, U-Chan ^{[2
]}

Maglione, Mario ^{[2
]}

Cao, Giacomo ^{[1
]}

机构：

[1] Univ Cagliari, Interuniv Nazl Sci & Tecnol Mat INSTM, Unita Ric Consorzio, Dipartimento Ingn Meccan Chim & Mat, Via Marengo 2, I-09123 Cagliari, Italy

[2] Univ Bordeaux, CNRS, ICMCB, UMR 5026, 87 Ave Dr A Schweitzer, F-33608 Pessac, France

[3] Univ Bordeaux, Lab IMS, UMR 5218, 351 Cours Liberat, F-33405 Talence, France

来源：

CERAMICS INTERNATIONAL | 2021年 / 47卷 / 03期

关键词：

Dielectric permittivity; Spark plasma sintering; Piezoelectric; Post-annealing; Self-propagating high-temperature synthesis; ELECTRICAL-PROPERTIES; FERROELECTRIC PROPERTIES; PHASE-TRANSITION; GRAIN-SIZE; ELECTROMECHANICAL PROPERTIES; PIEZOELECTRIC PROPERTIES; COMBUSTION SYNTHESIS; BARIUM; ZR; BAZRXTI1-XO3;

D O I：

10.1016/j.ceramint.2020.09.210

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

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 degrees 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.

引用

页码：3614 / 3625

页数：12

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