Shear piezoelectric properties d24 and k24 of a [001] poled KNNTL-Mn single crystal

CrystEngComm ◽  
2019 ◽  
Vol 21 (45) ◽  
pp. 7011-7016
Author(s):  
Jiao Li ◽  
Guo-xiang Zhou ◽  
Jia Li
Keyword(s):  
Single Crystal ◽  
Coordinate System ◽  
Piezoelectric Properties ◽  
3D Space ◽  
System Rotation ◽  
Rotation Method

The distributions of d24 and k24 in the 3D space of a [001] poled (K, Na, Li)(Na, Ta)O3:Mn (KNNTL-Mn) single crystal were investigated by the coordinate system rotation method.

scholarly journals Growth of single crystals in the (Na1/2Bi1/2)TiO3–(Sr1–xCax)TiO3 system by solid state crystal growth

2021 ◽  
Author(s):  
Phan Gia Le ◽  
Huyen Tran Tran ◽  
Jong-Sook Lee ◽  
John G. Fisher ◽  
Hwang-Pill Kim ◽  
...  
Keyword(s):  
Crystal Growth ◽  
Solid State ◽  
Single Crystal ◽  
Single Crystals ◽  
Piezoelectric Properties ◽  
Single Crystal Growth ◽  
Crystal Growth Rate ◽  
Large Strains ◽  
Growth Technique ◽  
The Matrix

AbstractCeramics based on (Na1/2B1/2)TiO3 are promising candidates for actuator applications because of large strains generated by an electric field-induced phase transition. For example, the (1−x)(Na1/2Bi1/2)TiO3-xSrTiO3 system exhibits a morphotropic phase boundary at x = 0.2–0.3, leading to high values of inverse piezoelectric constant d*33, which can be further improved by the use of single crystals. In our previous work, single crystals of (Na1/2B1/2)TiO3-SrTiO3 and (Na1/2B1/2)TiO3-CaTiO3 were grown by the solid state crystal growth technique. Growth in the (Na1/2B1/2)TiO3-SrTiO3 system was sluggish whereas the (Na1/2B1/2)TiO3-CaTiO3 single crystals grew well. In the present work, 0.8(Na1/2Bi1/2)TiO3-0.2(Sr1−xCax)TiO3 single crystals (with x = 0.0, 0.1, 0.2, 0.3, 0.4) were produced by the solid state crystal growth technique in an attempt to improve crystal growth rate. The dependence of mean matrix grain size, single crystal growth distance, and electrical properties on the Ca concentration was investigated in detail. These investigations indicated that at x = 0.3 the matrix grain growth was suppressed and the driving force for single crystal growth was enhanced. Replacing Sr with Ca increased the shoulder temperature Ts and temperature of maximum relative permittivity Tmax, causing a decrease in inverse piezoelectric properties and a change from normal to incipient ferroelectric behavior.

scholarly journals Comparative study on the performance of piezo-active 1–3-type composites with lead-free components

2021 ◽  
pp. 2160003
Author(s):  
Ashura N. Isaeva ◽  
Vitaly Yu. Topolov
Keyword(s):  
Single Crystal ◽  
Piezoelectric Coefficient ◽  
Piezoelectric Properties ◽  
Volume Fraction ◽  
Lead Free ◽  
Figures Of Merit ◽  
Piezoelectric Energy ◽  
Harvesting Systems ◽  
Porous Matrices ◽  
Large Anisotropy

Piezoelectric properties and related figures of merit are studied in novel 1–3-type composites based on ferroelectric domain-engineered lead-free single crystal with the relatively large longitudinal piezoelectric coefficient [Formula: see text]. Relationships between the piezoelectric properties and the set of figures of merit are analyzed for the 1–3 and 1–3–0 composites that contain the same single-crystal and polymer components. For a composite characterized by 1–3–0 connectivity, an influence of a porous piezo-passive matrix on the figures of merit and their volume-fraction behavior is considered additionally. A large anisotropy of figures of merit is observed in the 1–3–0 composite with specific porous matrices. A diagram is put forward to show volume-fraction regions of the large anisotropy of figures of merit of the studied 1–3–0 composite. Due to large figures of merit and their considerable anisotropy, the studied lead-free composites can be applied in piezoelectric energy-harvesting systems, sensors, transducers, and so on.

Domain engineering and full matrix material constants of the [111]c-poled 0.63Pb(Mg1/3Nb2/3)-0.37PbTiO3 single crystal

CrystEngComm ◽  
2018 ◽  
Vol 20 (33) ◽  
pp. 4745-4751 ◽  
Author(s):  
Zhongyuan Yuan ◽  
Shijing Sang ◽  
Enwei Sun ◽  
Xudong Qi ◽  
Wei-Yi Chang ◽  
...  
Keyword(s):  
Single Crystal ◽  
Piezoelectric Properties ◽  
Matrix Material ◽  
Domain Engineering ◽  
Full Matrix ◽  
Material Constants ◽  
P Domain

Domain engineering was performed on a [111]c-oriented tetragonal ferroelectric 0.63Pb(Mg1/3Nb2/3)-0.37PbTiO3 (PMN-0.37PT) single crystal in order to achieve better piezoelectric properties.

scholarly journals (K, Na, Li)(Nb, Ta)O3 :Mn Lead-Free Single Crystal with High Piezoelectric Properties

2015 ◽  
Vol 98 (6) ◽  
pp. 1829-1835 ◽  
Author(s):  
Xiaoqing Huo ◽  
Rui Zhang ◽  
Limei Zheng ◽  
Shujun Zhang ◽  
Rui Wang ◽  
...  
Keyword(s):  
Single Crystal ◽  
Piezoelectric Properties ◽  
Lead Free
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