Phase structure, dielectric properties, and relaxor behavior of (K0.5Na0.5)NbO3–(Ba0.5Sr0.5)TiO3 lead-free solid solution for high temperature applications

2009 ◽  
Vol 105 (12) ◽  
pp. 124104 ◽  
Author(s):  
Hongliang Du ◽  
Wancheng Zhou ◽  
Fa Luo ◽  
Dongmei Zhu ◽  
Shaobo Qu ◽  
...  
Keyword(s):  
Solid Solution ◽  
High Temperature ◽  
Dielectric Properties ◽  
Phase Structure ◽  
Lead Free ◽  
Relaxor Behavior ◽  
Temperature Applications

scholarly journals Original Reaction Sequence of Pb(Yb1/2Nb1/2)O3-PbTiO3: Consequences on Dielectric Properties and Chemical Order

2015 ◽  
Vol 2015 ◽  
pp. 1-6 ◽  
Author(s):  
Charlotte Cochard ◽  
Fabienne Karolak ◽  
Christine Bogicevic ◽  
Orland Guedes ◽  
Pierre-Eymeric Janolin
Keyword(s):  
Solid Solution ◽  
Dielectric Constant ◽  
High Temperature ◽  
Dielectric Properties ◽  
Double Perovskite ◽  
Underlying Mechanism ◽  
Relaxor Behavior ◽  
Chemical Order ◽  
High Temperature Synthesis ◽  
End Members

The solid solution [Pb(Yb1/2Nb1/2)O3]1−x-[PbTiO3]xwas synthesized withx≤60%, using several high-temperature techniques as well as room-temperature mechanosynthesis. The high-temperature synthesis reveals a reaction path involving the synthesis first of the end-members before the solid solution. The density and dielectric constant measured on the ceramics prepared from these powders indicate the crucial role of the synthesis technique in the subsequent properties. Mechanosynthesis results in ceramics with higher density and dielectric constant. Identical optimized sintering conditions were then applied to all investigated compositions and the resulting dielectric properties and chemical orders were compared. All polar orders (antiferroelectricity, ferroelectricity, and relaxor behavior) were evidenced. The 1 : 1 chemical order on the B-site of Pb(Yb1/2Nb1/2)O3results in the formation of a double perovskite Pb2YbNbO6, and the superstructures in the X-ray diagrams signing the existence of this order persist up to 30% PbTiO3. The underlying mechanism for substitution of Yb or Nb by Ti is presented.

scholarly journals Lead-free relaxor thin films with huge energy density and low loss for high temperature applications

Nano Energy ◽  
2020 ◽  
Vol 71 ◽  
pp. 104536 ◽  
Author(s):  
A. Kursumovic ◽  
W.-W. Li ◽  
S. Cho ◽  
P.J. Curran ◽  
D.H.L. Tjhe ◽  
...  
Keyword(s):  
Thin Films ◽  
High Temperature ◽  
Energy Density ◽  
Lead Free ◽  
Low Loss ◽  
Temperature Applications

High temperature lead-free BNT-based ceramics with stable energy storage and dielectric properties

2020 ◽  
Vol 8 (2) ◽  
pp. 683-692 ◽  
Author(s):  
Chaoqiong Zhu ◽  
Ziming Cai ◽  
Bingcheng Luo ◽  
Limin Guo ◽  
Longtu Li ◽  
...  
Keyword(s):  
High Temperature ◽  
Energy Storage ◽  
Dielectric Properties ◽  
Temperature Stability ◽  
Lead Free ◽  
Capacitance Variation

The designed 0.8BNTSZ–0.2NN ceramic demonstrates superb temperature stability with a capacitance variation <±15 from −55 °C to 545 °C.

Synthesis, structure, dielectric properties and relaxor behavior of a novel solid solution (1-x)Pb(Mg1/3Nb2/3)O3-xBi(Zn2/3Nb1/3)O3

2018 ◽  
Vol 534 (1) ◽  
pp. 42-49 ◽  
Author(s):  
Z. Liu ◽  
Y. Yuan ◽  
P. Jaimeewong ◽  
H. Wu ◽  
W. Ren ◽  
...  
Keyword(s):  
Solid Solution ◽  
Dielectric Properties ◽  
Relaxor Behavior

Lead-Free Ceramics with High Energy Density and Reduced Losses for High Temperature Applications

2017 ◽  
Vol 19 (6) ◽  
pp. 1700019 ◽  
Author(s):  
Tatiana Correia ◽  
Mark Stewart ◽  
Angela Ellmore ◽  
Knuth Albertsen
Keyword(s):  
High Temperature ◽  
Energy Density ◽  
High Energy ◽  
High Energy Density ◽  
Lead Free ◽  
Lead Free Ceramics ◽  
Temperature Applications

Relaxor behavior and dielectric properties of (La, Ta)-modified (K0.5Na0.5)NbO3 lead-free ceramics

2009 ◽  
Vol 484 (1-2) ◽  
pp. 233-238 ◽  
Author(s):  
Jigong Hao ◽  
Zhijun Xu ◽  
Ruiqing Chu ◽  
Wei Li ◽  
Guorong Li ◽  
...  
Keyword(s):  
Dielectric Properties ◽  
Lead Free ◽  
Relaxor Behavior ◽  
Lead Free Ceramics
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