Low electric field-driven giant strain response in 〈001〉 textured BNT-based lead-free piezoelectric materials

2016 ◽  
Vol 52 (6) ◽  
pp. 3169-3178 ◽  
Author(s):  
Wangfeng Bai ◽  
Daqin Chen ◽  
Peng Zheng ◽  
Jingji Zhang ◽  
Bo Shen ◽  
...  
Keyword(s):  
Electric Field ◽  
Piezoelectric Materials ◽  
Lead Free ◽  
Strain Response

scholarly journals In-situ electric field induced lattice strain response observation in BiFeO3–BaTiO3 lead-free piezoelectric ceramics

2018 ◽  
Vol 126 (5) ◽  
pp. 316-320 ◽  
Author(s):  
Sangwook KIM ◽  
Gopal Prasad KHANAL ◽  
Hyun-Wook NAM ◽  
Minsu KIM ◽  
Ichiro FUJII ◽  
...  
Keyword(s):  
Electric Field ◽  
Lattice Strain ◽  
Piezoelectric Ceramics ◽  
Lead Free ◽  
Strain Response

Development of Lead-Free Piezoelectric Materials Using Domain Wall Engineering

2006 ◽  
Vol 320 ◽  
pp. 151-154
Author(s):  
Satoshi Wada ◽  
Koichi Yako ◽  
Tomomitsu Muraishi ◽  
Hirofumi Kakemoto ◽  
Takaaki Tsurumi
Keyword(s):  
Barium Titanate ◽  
Domain Wall ◽  
Electric Field ◽  
Single Crystals ◽  
Electric Fields ◽  
Applied Electric Field ◽  
Piezoelectric Materials ◽  
Domain Size ◽  
Lead Free ◽  
Gradient Domain

For the [111] oriented barium titanate (BaTiO3) single crystals, the patterning electrode was applied to induce the finer engineered domain configurations with domain size of 3 2m. The poling treatment was performed at 134 °C under electric fields below 6 kV/cm to inhibit the burning of the patterning electrode with photoresist. As the results, the gradient domain sizes from 3 to 8-9 2m were induced into the 31 resonator. The d31 was measured at -243.2 pC/N, and this value was almost 70 % of the expected d31 of –337.7 pC/N for the resonator with domain size of 3 2m. This difference was originated from lower applied electric field below 6 kV/cm. However, this study was revealed that the patterning electrode was very powerful tool to induce much finer domain sizes below 5 2m.

Temperature Dependence on Ferroelectric, Energy Storage Density, and Electric Field-Induced Strain Response of Lead-Free Bi0.485(Na0.388K0.097)Ba0.021Sr0.009TiO3 Ceramics

2019 ◽  
Vol 201 (1) ◽  
pp. 142-154
Author(s):  
Pharatree Jaita ◽  
Narumon Lertcumfu ◽  
Gobwute Rujijanagul
Keyword(s):  
Energy Storage ◽  
Electric Field ◽  
Temperature Dependence ◽  
Lead Free ◽  
Strain Response ◽  
Energy Storage Density ◽  
Storage Density ◽  
Optimum Density ◽  
Electric Field Induced Strain

In this research, Bi0.485(Na0.388K0.097)Ba0.021Sr0.009TiO3 or BNKBSrT ceramic sintered at various temperatures from 1100 °C to 1150 °C were investigated. The optimum density (5.80 g/cm3), mechanical (HK = 5.3 GPa, HV = 4.1 GPa, E = 62 GPa, and KIC = 1.35 MPa m1/2), dielectric (εr = 1525, tanδ = 0.0566), piezoelectric (d33 = 172 pC/N, g33 = 12 × 10−3 Vm/N), electric field-induced strain (Smax = 0.32%, d*33 = Smax/Emax = 640 pm/V, Q33 = 0.0340 m4/C2), and energy storage (W = 0.55 J/cm3, η = 67.2% @ 150 °C) were obtained for the ceramic sintered at 1125 °C.

Large Electric Field-Induced Strain Response Under a Low Electric Field in Lead-Free Bi1/2Na1/2TiO3-SrTiO3-BiAlO3 Ternary Piezoelectric Ceramics

2020 ◽  
Vol 49 (11) ◽  
pp. 6677-6685
Author(s):  
Hoang Thien Khoi Nguyen ◽  
Trang An Duong ◽  
Farrukh Erkinov ◽  
Chang Won Ahn ◽  
Byeong Woo Kim ◽  
...  
Keyword(s):  
Electric Field ◽  
Piezoelectric Ceramics ◽  
Lead Free ◽  
Strain Response ◽  
Large Electric Field ◽  
Electric Field Induced Strain

Strain and Current Responses During Electron Flux Excitation of Piezoelectric Ceramics

2002 ◽  
Author(s):  
Philip C. Hadinata ◽  
John A. Main
Keyword(s):  
Electric Field ◽  
Electrode Potential ◽  
Current Flow ◽  
Electron Flux ◽  
Piezoelectric Materials ◽  
Negative Control ◽  
Internal Electric Field ◽  
Strain Response ◽  
Opposite Face ◽  
Electric Field Induced Strain

The electric field induced strain in piezoelectric materials subjected to an electron flux is examined in this paper. An analysis using quantum mechanics indicates that stable and controllable strains with very low current draw should be achievable over a range of positive and negative control potentials. The model also predicts an instability in the internal electric field at larger negative potentials. The model was evaluated by observing the strain output of PZT5h plates subjected to an electron flux on one face and voltage inputs from a single electrode on the opposite face. The strain response and current flow were measured as a function of electrode potential and electron energy. All of the significant predictions of the model were verified by the experimental results. Further experiments were performed to examine the time response of the strain induced in the plate. It was found that the location and potential of the electron collector dramatically influences the dynamic response of the system.

Electric field-induced strain response of lead-free Fe 2 O 3 nanoparticles-modified Bi 0.5 (Na 0.80 K 0.20 ) 0.5 TiO 3 -0.03(Ba 0.70 Sr 0.03 )TiO 3 piezoelectric ceramics

2017 ◽  
Vol 43 ◽  
pp. S2-S9 ◽  
Author(s):  
Pharatree Jaita ◽  
Pichitchai Butnoi ◽  
Ratabongkot Sanjoom ◽  
Chamnan Randorn ◽  
Rattikorn Yimnirun ◽  
...  
Keyword(s):  
Electric Field ◽  
Piezoelectric Ceramics ◽  
Lead Free ◽  
Strain Response ◽  
Electric Field Induced Strain

scholarly journals Charging of Piezoelectric Cellular Polypropylene Film by Means of a Series Dielectric Layer

Polymers ◽  
2021 ◽  
Vol 13 (3) ◽  
pp. 333
Author(s):  
Pedro Llovera-Segovia ◽  
Gustavo Ortega-Braña ◽  
Vicente Fuster-Roig ◽  
Alfredo Quijano-López
Keyword(s):  
Electric Field ◽  
Corona Discharge ◽  
Dielectric Layer ◽  
Dielectric Breakdown ◽  
Piezoelectric Materials ◽  
High Resistivity ◽  
Internal Electric Field ◽  
Dielectric Polarization ◽  
Surface Flashover ◽  
In Series

Piezoelectric polymer cellular films have been developed and improved in the past decades. These piezoelectric materials are based on the polarization of the internal cells by means of induced discharges in the gas inside the cells. Internal discharges are driven by an external applied electric field. With this polarization method, cellular polypropylene (PP) polymers exhibit a high piezoelectric coefficient d33 and have been investigated because of their low dielectric polarization, high resistivity, and flexibility. Charging polymers foams is normally obtained by applying a corona discharge to the surface with a single tip electrode-plane arrangement or a triode electrode, which consists of a tip electrode-plane structure with a controlled potential intermediate mesh. Corona charging allows the surface potential of the sample to rise without breakdown or surface flashover. A charging method has been developed without corona discharge, and this has provided good results. In our work, a method has been developed to polarize polypropylene foams by applying an insulated high-voltage electrode on the surface of the sample. The dielectric layer in series with the sample allows for a high internal electric field to be reached in the sample but avoids dielectric breakdown of the sample. The distribution of the electric field between the sample and the dielectric barrier has been calculated. Experimental results with three different electrodes present good outcome in agreement with the calculations. High d33 constants of about 880 pC/N have been obtained. Mapping of the d33 constant on the surface has also been carried out showing good homogeneity on the area under the electrode.

The Characteristic of the La3Ga5SiO14 Single Crystal Grown by Vertical Bridgman Method in Ar Atmosphere

2006 ◽  
Vol 510-511 ◽  
pp. 842-845 ◽  
Author(s):  
Noriko Bamba ◽  
Kentaro Kato ◽  
Toshinori Taishi ◽  
Takayuki Hayashi ◽  
Keigo Hoshikawa ◽  
...  
Keyword(s):  
Melting Point ◽  
Single Crystal ◽  
Single Crystals ◽  
Room Temperature ◽  
Color Change ◽  
Piezoelectric Materials ◽  
Lead Free ◽  
Piezoelectric Constant ◽  
Interstitial Oxygen ◽  
Vertical Bridgman

Langasite (La3Ga5SiO14: denoted by LGS) single crystal is one of the lead free piezoelectric materials with high piezoelectricity that is maintained up to its melting point (1470°C). Although LGS single crystals have usually been grown by Czochralski (CZ) method in oxygen contained atmosphere to prevent evaporation of Ga, they were grown by the vertical Bridgman (VB) method in Ar atmosphere without oxygen, and their properties were evaluated in this work. Transparent and colorless LGS single crystals were successfully obtained without Ga evaporation by the VB method in Ar atmosphere, and their resistivity at room temperature was much higher than that grown by conventional CZ method. Piezoelectric constant d11 of the crystal grown by the VB method was 6 x 10-12 C/N, which was close to that of the crystal grown by CZ method. The colorless transparent LGS single crystal turned to orange and its resistivity decreased by annealing in air. Since an orange-colored transparent LGS single crystal has been grown by conventional CZ method, this indicates that color change and the resistivity decrease of LGS crystal is caused by extra interstitial oxygen atoms in the crystal.

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