A-site cation off-centering contribution on ferroelectricity and piezoelectricity in pseudo-cubic perovskite structure of Bi-based lead-free piezoelectrics

2021 ◽  
Vol 205 ◽  
pp. 114176
Author(s):  
Sangwook Kim ◽  
Hyunwook Nam ◽  
Ichiro Fujii ◽  
Shintaro Ueno ◽  
Chikako Moriyoshi ◽  
...  
Keyword(s):  
Perovskite Structure ◽  
Lead Free ◽  
A Site

Piezoelectric Properties and Dielectric Property of Li Added KNN Ceramics

2013 ◽  
Vol 566 ◽  
pp. 72-75 ◽  
Author(s):  
Akihiro Mitani ◽  
Yoshinari Oba
Keyword(s):  
Dielectric Property ◽  
Curie Temperature ◽  
Perovskite Structure ◽  
High Performance ◽  
Piezoelectric Properties ◽  
Piezoelectric Materials ◽  
Environmental Issues ◽  
Lead Free ◽  
High Curie Temperature ◽  
A Site

Recently, high performance lead-free piezoelectric materials are strongly demanded for environmental issues. (K0.5Na0.5)NbO3 (KNN) has been attracting interest as lead-free piezoelectric ceramics because of its high Curie temperature and excellent piezoelectric properties. In this study, we investigated effects of Li addition on piezoelectric properties of (Li,Na,K)(Nb+Ta)O3+CuO,BaTiO3 . We found that optimum Li ratio of A site and B site on the perovskite structure increases relative density and .

The Research on the Piezoelectric and Dielectric Properties of Bi0.5(Nak)0.5-BaTiO3 Lead-Free Ceramics

2014 ◽  
Vol 1035 ◽  
pp. 422-425
Author(s):  
Jian Yong Guo ◽  
Tao Sheng Zhou ◽  
Ji Hong Liao
Keyword(s):  
Dielectric Constant ◽  
Dielectric Properties ◽  
Perovskite Structure ◽  
Relative Dielectric Constant ◽  
Lead Free ◽  
Reactive Sintering ◽  
Lead Free Ceramics ◽  
Xrd Patterns ◽  
Sintering Method

The Bi0.5(Na1-xKx)0.5-yBaTiO3(BNK-BT) lead-free ceramics have been prepared by the solild reactive sintering method. XRD patterns show the BNK-BT ceramics had a perovskite structure. Piezoelectric and dielectric properties of the ceramics also have been studied. The results show that the samples had the best piezoelectric and dielectric properties when x=0.20, y=0.10. And the maximum of d33is 149 pC/N, while the relative dielectric constant is 1087.

scholarly journals A-site magnetism in A-site-ordered perovskite-structure oxides

2011 ◽  
Vol 249 (3) ◽  
pp. 423-434 ◽  
Author(s):  
Yuichi Shimakawa ◽  
Takashi Saito
Keyword(s):  
Perovskite Structure ◽  
A Site

The rich physics of A-site-ordered quadruple perovskite manganites AMn7O12

2021 ◽  
Author(s):  
Alexei A. Belik ◽  
Roger D Johnson ◽  
Dmitry Khalyavin
Keyword(s):  
Perovskite Structure ◽  
Double Exchange ◽  
Perovskite Manganites ◽  
Phonon Coupling ◽  
Electron Phonon Coupling ◽  
Jahn Teller ◽  
The Rich ◽  
A Site ◽  
Small Polarons

Perovskite-structure AMnO3 manganites played an important role in the development of numerous physical concepts such as double exchange, small polarons, electron-phonon coupling, and Jahn−Teller effects, and they host a variety...

scholarly journals Influence of Ta5+ content on the crystallographic structure and electrical properties of [001]PC-oriented (Li,Na,K)(Nb,Ta)O3 single crystals

CrystEngComm ◽  
2016 ◽  
Vol 18 (12) ◽  
pp. 2081-2088 ◽  
Author(s):  
Hairui Liu ◽  
Philippe Veber ◽  
Jurij Koruza ◽  
Daniel Rytz ◽  
Michael Josse ◽  
...  
Keyword(s):  
Electrical Properties ◽  
Single Crystals ◽  
Perovskite Structure ◽  
Solution Growth ◽  
Lead Free ◽  
Crystallographic Structure ◽  
Growth Method ◽  
Top Seeded Solution Growth

A series of centimeter-sized lead-free piezoelectric Li+- and Ta5+-modified (Na,K)NbO3 single crystals with an ABO3 perovskite structure was successfully grown by the top-seeded solution growth method.

Revealing the A‐Site Effect of Lead‐Free A 3 Sb 2 Br 9 Perovskite in Photocatalytic C(sp 3 )−H Bond Activation

2020 ◽  
Vol 59 (41) ◽  
pp. 18136-18139 ◽  
Author(s):  
Zhenzhen Zhang ◽  
Yuying Yang ◽  
Yingying Wang ◽  
Lanlan Yang ◽  
Qi Li ◽  
...  
Keyword(s):  
Bond Activation ◽  
Site Effect ◽  
Lead Free ◽  
A Site

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.

Structure and piezoelectric properties of K0.5Na0.5NbO3 based lead-free piezoceramics with slight deviation from A-site K or Na stoichiometry

2016 ◽  
Vol 36 (1-4) ◽  
pp. 30-39 ◽  
Author(s):  
Qing Ma ◽  
Bingbing Wan ◽  
Lijin Cheng ◽  
Shaojun Liu ◽  
Fusheng Liu
Keyword(s):  
Piezoelectric Properties ◽  
Lead Free ◽  
A Site

Pressure Effect on Intersite Charge Transfer in A-site-Ordered Double-Perovskite-Structure Oxide

2012 ◽  
Vol 24 (11) ◽  
pp. 2235-2239 ◽  
Author(s):  
You-wen Long ◽  
Takateru Kawakami ◽  
Wei-tin Chen ◽  
Takashi Saito ◽  
Tetsu Watanuki ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Perovskite Structure ◽  
Pressure Effect ◽  
Double Perovskite ◽  
A Site
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