Optimized piezoelectric properties and temperature stability in PSN‐PMN‐PT by adjusting the phase structure and grain size

2021 ◽  
Author(s):  
Feifei Guo ◽  
Chao Yang ◽  
Hongqiao Zhou ◽  
Shasha Dong ◽  
Pinyang Fang ◽  
...  
Keyword(s):  
Grain Size ◽  
Phase Structure ◽  
Piezoelectric Properties ◽  
Temperature Stability

scholarly journals Simultaneously improving piezoelectric properties and temperature stability of Na0.5K0.5NbO3 (KNN)-based ceramics sintered in reducing atmosphere

2021 ◽  
Author(s):  
Zhenyong Cen ◽  
Shuaishuai Bian ◽  
Ze Xu ◽  
Ke Wang ◽  
Limin Guo ◽  
...  
Keyword(s):  
Grain Size ◽  
Alkali Metal ◽  
Oxygen Vacancies ◽  
Piezoelectric Properties ◽  
Temperature Stability ◽  
Conventional Solid State Reaction ◽  
Sintering Aid ◽  
Reducing Atmosphere ◽  
Piezoelectric Strain ◽  
Free Material

AbstractIt is a very difficult work to sinter K0.5Na0.5NbO3 (KNN)-based materials with good reduction resistance in strong reducing atmosphere. 0.945K0.48Na0.52Nb0.96Ta0.04O3−0.055BaZrO3 + 0.03ZrO2 + y mol%MnO (KNNT−0.055BZ + 0.03Zr + yMn) ceramics sintered in reducing atmosphere were prepared successfully by conventional solid-state reaction methods. MnO dopant increases grain size at y = 5–8 due to strong lattice distortion and then decreases grain size at y = 9 due to much Mn4Nb2O9 accumulated at the grain boundary. MnO dopant as an excellent sintering aid can effectively reduce volatilization of alkali metal by decreasing the sintering temperature (Tsinter). Reducing alkali metal volatilization can greatly reduce oxygen vacancies and improve piezoelectric properties. MnO dopant can improve the anti-reduction properties. The KNNT−0.055BZ + 0.03Zr + yMn ceramics at y = 6–9 show outstanding anti-fatigue of unipolar piezoelectric strain under the synergistic effect of reduced oxygen vacancies due to reduced volatilization and increased grain size. Piezoelectric properties and temperature stability of KNNT−0.055BZ + 0.03Zr ceramics sintered in reducing atmosphere are improved simultaneously by MnO dopant. Optimum inverse piezoelectric coefficient (d 33 * ) of ceramics at y = 8 reaches up to 480 pm/V under low driving electric field E = 20 kV/cm at room temperature, and its temperature stability of d 33 * reaches 158 °C. It will be an excellent lead-free material candidate for the preparation of multilayer piezoelectric actuators co-fired with nickel electrode.

Sm-induced multifunctionality and poling effect on luminescence of Sm-doped (Ba0.85Ca0.15)(Ti0.9Zr0.1)O3 piezoceramics

2020 ◽  
Vol 13 (05) ◽  
pp. 2051023 ◽  
Author(s):  
Quanlin Wang ◽  
Jinfeng Lin ◽  
Yang Zhou ◽  
Cong Lin ◽  
Tengfei Lin ◽  
...  
Keyword(s):  
Grain Size ◽  
Phase Transformation ◽  
Curie Temperature ◽  
Phase Structure ◽  
Lattice Distortion ◽  
Piezoelectric Properties ◽  
Lead Free ◽  
Enhancement Factors ◽  
Conventional Sintering ◽  
The Relationship

The lead-free multifunctional ceramics Sm3+-doped (Ba0.85Ca0.15)(Ti0.9Zr0.1)O3 were synthesized via conventional sintering. The influences of Sm3+ concentration on phase structure, grain size, Curie temperature, ferro-/piezoelectric properties, as well as photoluminescence (PL) performances of the ceramics have been investigated. The results show that with the Sm3+ concentration of 0.4[Formula: see text]mol%, the integrated optoelectronic performances are best. In order to further study the relationship between ferroelectric and PL features, the poling effect on PL intensities of the ceramics has been focused on, giving the highest enhancement factors of 52.6% induced by both lattice distortion and phase transformation. The electric poling is an effective route to enhance the PL performance of luminescent ferroelectrics.

Phase structure and piezoelectric properties of high Curie temperature BiYbO3–PbTiO3–BaTiO3 ceramics

2009 ◽  
Vol 475 (1-2) ◽  
pp. 619-623 ◽  
Author(s):  
Gao Feng ◽  
Hong Rongzi ◽  
Liu Jiaji ◽  
Li Zhen ◽  
Cheng Lihong ◽  
...  
Keyword(s):  
Curie Temperature ◽  
Phase Structure ◽  
Piezoelectric Properties ◽  
High Curie Temperature

Effects of Bi0.5 Na0.5 HfO3 addition on the phase structure and piezoelectric properties of (K, Na)NbO3 -based ceramics

2017 ◽  
Vol 100 (9) ◽  
pp. 3920-3927 ◽  
Author(s):  
Yi Chen ◽  
Dandan Xue ◽  
Meng Shi ◽  
Xianquan Jiang ◽  
Zhiqian Chen ◽  
...  
Keyword(s):  
Phase Structure ◽  
Piezoelectric Properties

Enhanced piezoelectric properties and temperature stability of Bi4Ti3O12-based Aurivillius ceramics via W/Nb substitution

2019 ◽  
Vol 39 (4) ◽  
pp. 957-962 ◽  
Author(s):  
Xinchun Xie ◽  
Tianzi Wang ◽  
Zhiyong Zhou ◽  
Guofeng Cheng ◽  
Ruihong Liang ◽  
...  
Keyword(s):  
Piezoelectric Properties ◽  
Temperature Stability

Dielectric and Piezoelectric Properties of Lead Free (1-x-y)Na1/2Bi1/2TiO3-xBaTiO3-yBiFeO3 Piezoelectric Ceramics

2011 ◽  
Vol 492 ◽  
pp. 194-197 ◽  
Author(s):  
Yue Fang Wang ◽  
Xiu Jie Yi ◽  
Wei Pan ◽  
Guo Zhong Zang ◽  
Juan Du
Keyword(s):  
Electrical Properties ◽  
Dielectric Loss ◽  
Phase Structure ◽  
Perovskite Structure ◽  
Piezoelectric Properties ◽  
Piezoelectric Ceramics ◽  
Lead Free ◽  
Compositional Dependence ◽  
Pure Perovskite Structure ◽  
Dielectric And Piezoelectric Properties

Lead-free (1-x-y)Na1/2Bi1/2TiO3-xBaTiO3-yBiFeO3 ceramics were synthesized by ordinary sintering technique. The compositional dependence of phase structure and electrical properties of the ceramics was systematically investigated. All samples possessed pure perovskite structure. The dielectric and piezoelectric properties of ceramics were investigated with the amount of different BiFeO3 substitutions. The addition of BiFeO3 can not only decrease Ec and Pr but also lead to a significant degradation of the dielectric loss tanδ.

Grain Size Effect on Dielectric and Piezoelectric Properties of Alkoxy-Derived BaTiO3-Based Thin Films

2004 ◽  
Vol 43 (9B) ◽  
pp. 6525-6529 ◽  
Author(s):  
Kiyotaka Tanaka ◽  
Kazuyuki Suzuki ◽  
Desheng Fu ◽  
Kaori Nishizawa ◽  
Takeshi Miki ◽  
...  
Keyword(s):  
Thin Films ◽  
Grain Size ◽  
Size Effect ◽  
Piezoelectric Properties ◽  
Grain Size Effect ◽  
Dielectric And Piezoelectric Properties

Structure and Piezoelectric Properties of PZN-PNN-PT Ceramics

2007 ◽  
Vol 280-283 ◽  
pp. 223-226 ◽  
Author(s):  
Jin Song Pan ◽  
Xiao Wen Zhang ◽  
Ke Pi Chen ◽  
Chao Lei
Keyword(s):  
Phase Structure ◽  
Piezoelectric Properties ◽  
Perovskite Phase ◽  
Ferroelectric Ceramics ◽  
Phase Boundaries ◽  
Precursor Method ◽  
Pure Perovskite Phase ◽  
The Relationship ◽  
Columbite Precursor ◽  
Better Than

(1-x)(0.64PNN-0.36PT)-x(0.91PZN-0.09PT) ferroelectric ceramics with different x were synthesized by the columbite precursor method. The phase structure and piezoelectric properties were investigated. XRD profiles implied that with the increasing of x, samples could no longer maintain the pure perovskite phase. All the compositions were found to lie within the region of the morphotropic phase boundaries (MPBs) with different contents of rhombohedral and tetragonal phases. The piezoelectric coefficients for compositions with x £ 0.30 were obviously better than those for the rest ones and the composition with x = 0.15 exhibited the largest value of d33 among all the samples. The relationship between the structure and the piezoelectric properties was discussed.

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