Giant strain and electric-field-induced phase transition in lead-free (Na0.5Bi0.5)TiO3-BaTiO3-(K0.5Na0.5)NbO3 single crystal

2016 ◽  
Vol 108 (2) ◽  
pp. 022903 ◽  
Author(s):  
Chao Chen ◽  
Xiangyong Zhao ◽  
Yaojin Wang ◽  
Haiwu Zhang ◽  
Hao Deng ◽  
...  
Keyword(s):  
Phase Transition ◽  
Electric Field ◽  
Single Crystal ◽  
Lead Free

scholarly journals Synthesis and characterization of lead-free ternary component BST–BCT–BZT ceramic capacitors

2014 ◽  
Vol 04 (02) ◽  
pp. 1450014 ◽  
Author(s):  
Venkata Sreenivas Puli ◽  
Dhiren K. Pradhan ◽  
Brian C. Riggs ◽  
Shiva Adireddy ◽  
Ram S. Katiyar ◽  
...  
Keyword(s):  
Phase Transition ◽  
Dielectric Constant ◽  
Energy Density ◽  
Electric Field ◽  
Hysteresis Loop ◽  
Electric Fields ◽  
Room Temperature ◽  
Thermal Hysteresis ◽  
Lead Free ◽  
Maximum Electric Field

Polycrystalline sample of lead-free 1/3( Ba 0.70 Sr 0.30 TiO 3) + 1/3( Ba 0.70 Ca 0.30 TiO 3) + 1/3( BaZr 0.20 Ti 0.80 O 3)( BST - BCT - BZT ) ceramic was synthesized by solid state reaction method. Phase purity and crystal structure of as-synthesized materials was confirmed by X-ray diffraction (XRD). Temperature-dependent dielectric permittivity studies demonstrated frequency-independent behavior, indicating that the studied sample has typical diffuse phase transition behavior with partial thermal hysteresis. A ferroelectric phase transition between cubic and tetragonal phase was noticed near room temperature (~ 330 K). Bulk P–E hysteresis loop showed a saturation polarization of 20.4 μC/cm2 and a coercive field of ~ 12.78 kV/cm at a maximum electric field of ~ 115 kV/cm. High dielectric constant (ε ~ 5773), low dielectric loss (tan δ ~ 0.03) were recorded at room temperature. Discharge energy density of 0.44 J/cm3 and charge energy density of 1.40 J/cm3 were calculated from nonlinear ferroelectric hysteresis loop at maximum electric field. Dielectric constant at variable temperatures and electric fields, ferroelectric to paraelectric phase transition and energy storage properties were thoroughly discussed.

In-situ electric field induced nanoscale BO6 octahedral tilting in lead-free Fe-doped 0.95(Na1/2Bi1/2)TiO3–0.05BaTiO3 single crystal

2019 ◽  
Vol 165 ◽  
pp. 94-97
Author(s):  
Saidong Xue ◽  
Haosu Luo ◽  
Xiangyong Zhao ◽  
Feifei Wang ◽  
Di Lin ◽  
...  
Keyword(s):  
Electric Field ◽  
Single Crystal ◽  
Lead Free ◽  
Octahedral Tilting

Temperature and Electric Field Dependent Phase Transformations in [001] PMN-PT Single Crystal

2021 ◽  
Vol 875 ◽  
pp. 55-59
Author(s):  
Ghulam Shabbir ◽  
Ahmad H. Qureshi
Keyword(s):  
Phase Transition ◽  
Phase Diagram ◽  
Electric Field ◽  
Single Crystal ◽  
Cubic Phase ◽  
Zero Field ◽  
Field Phase ◽  
Phase Transition Temperatures ◽  
Field Dependent ◽  
Oriented Single Crystal

The capacitance of (1-x)Pb(Mg1/3Nb2/3)O3-xPbTiO3 (PMN-xPT) [001]-oriented single crystal was examined as a function of temperature and applied external dc electric field. The phase transition temperatures under the applied electric field were measured upon cooling the crystal (zero-field heating field-cooling condition) from paraelectric cubic phase. From these data, temperature versus electric field phase diagram of PMN-xPT crystal have been constructed and discussed.

Electric field induced phase transition and domain structure evolution in (Pb, La)(Zr, Sn, Ti)O3 single crystal

2015 ◽  
Vol 107 (7) ◽  
pp. 072909 ◽  
Author(s):  
Jinghan Gao ◽  
Qiang Li ◽  
Yuanyuan Li ◽  
Fangping Zhuo ◽  
Qingfeng Yan ◽  
...  
Keyword(s):  
Phase Transition ◽  
Electric Field ◽  
Single Crystal ◽  
Domain Structure ◽  
Structure Evolution
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