Journal ArticleDOI
Large Piezoelectric Effect in Pb-Free Ceramics
Reads0
Chats0
TLDR
It is predicted that the single-crystal form of the MPB composition of the present system may reach a giant d(33) = 1500-2000 pC/N, which may provide a new recipe for designing highly piezoelectric materials (both Pb-free and P b-containing) by searching MPBs starting from a TCP.Abstract:
We report a non-Pb piezoelectric ceramic system Ba(Ti(0.8)Zr(0.2))O(3)-(Ba(0.7)Ca(0.3))TiO(3) which shows a surprisingly high piezoelectric coefficient of d(33) approximately 620 pC/N at optimal composition. Its phase diagram shows a morphotropic phase boundary (MPB) starting from a tricritical triple point of a cubic paraelectric phase (C), ferroelectric rhombohedral (R), and tetragonal (T) phases. The high piezoelectricity of the MPB compositions stems from the composition proximity of the MPB to the tricritical triple point, which leads to a nearly vanishing polarization anisotropy and thus facilitates polarization rotation between 001T and 111R states. We predict that the single-crystal form of the MPB composition of the present system may reach a giant d(33) = 1500-2000 pC/N. Our work may provide a new recipe for designing highly piezoelectric materials (both Pb-free and Pb-containing) by searching MPBs starting from a TCP.read more
Citations
More filters
Journal ArticleDOI
Determining Multi‐Component Phase Diagrams with Desired Characteristics Using Active Learning
Yuan Tian,Ruihao Yuan,Dezhen Xue,Yumei Zhou,Yunfan Wang,Xiangdong Ding,Jun Sun,Turab Lookman +7 more
TL;DR: It is demonstrated how to predict and experimentally validate phase diagrams for multi‐component systems from a high‐dimensional virtual space of all possible phase diagrams involving several elements based on small existing experimental data.
Journal ArticleDOI
Enhanced piezoelectric properties and constricted hysteresis behaviour in PZT ceramics induced by Li+–Al3+ ionic pairs
TL;DR: Li+−Al3+ ionic pairs doping was proposed in this paper to enhance the piezoelectric properties of PbZr0.52Ti0.48O3 (PZT) ceramic.
Journal ArticleDOI
Thermal-stability of the enhanced piezoelectric, energy storage and electrocaloric properties of a lead-free BCZT ceramic
Soukaina Merselmiz,Zouhair Hanani,Zouhair Hanani,Zouhair Hanani,Daoud Mezzane,Daoud Mezzane,Anna G. Razumnaya,Anna G. Razumnaya,M'barek Amjoud,L. Hajji,Svitlana Terenchuk,Brigita Rožič,Igor A. Luk'yanchuk,Igor A. Luk'yanchuk,Zdravko Kutnjak +14 more
TL;DR: In this paper, the BCZT relaxor ferroelectric ceramic has been elaborated by the solid-state reaction route, and the temperature-dependence of the structural, electrical, piezoelectric, energy storage and electrocaloric properties was investigated.
Journal ArticleDOI
Phase transition, microstructure, and electrical properties of Ca, Zr, and Sn-modified BaTiO3 lead-free ceramics
Hui Wang,Jiagang Wu +1 more
TL;DR: In this paper, the effects of Ca 2+ content on the phase structure, microstructure, and electrical properties of lead-free ceramics were investigated by the conventional solid-state method.
Journal ArticleDOI
Structural, dielectric, and ferroelectric properties of lead-free BCZT ceramics elaborated by low-temperature hydrothermal processing
Zouhair Hanani,Zouhair Hanani,Daoud Mezzane,M'barek Amjoud,Yaovi Gagou,Khalid Hoummada,C. Perrin,Anna G. Razumnaya,Anna G. Razumnaya,Zdravko Kutnjak,Adnane Bouzina,Mimoun El Marssi,Mohamed Gouné,Brigita Rožič +13 more
TL;DR: In this article, the structural, dielectric, and ferroelectric properties of sintered BCZT ceramics at 1250°C/10h were investigated.
References
More filters
Journal ArticleDOI
Lead-free piezoceramics
Yasuyoshi Saito,Hisaaki Takao,Toshihiko Tani,Tatsuhiko Nonoyama,Kazumasa Takatori,Takahiko Homma,Toshiatsu Nagaya,Masaya Nakamura +7 more
TL;DR: A lead-free piezoelectric ceramic with an electric-field-induced strain comparable to typical actuator-grade PZT is reported, achieved through the combination of the discovery of a morphotropic phase boundary in an alkaline niobate-based perovskite solid solution, and the development of a processing route leading to highly textured polycrystals.
Journal ArticleDOI
Ultrahigh strain and piezoelectric behavior in relaxor based ferroelectric single crystals
Seung Eek Park,Thomas R. Shrout +1 more
TL;DR: In this article, the piezoelectric properties of relaxor based ferroelectric single crystals, such as Pb(Zn1/3Nb2/3)O3 and PbTiO3, were investigated for electromechanical actuators.
Journal ArticleDOI
Polarization rotation mechanism for ultrahigh electromechanical response in single-crystal piezoelectrics
Huaxiang Fu,Ronald E. Cohen +1 more
TL;DR: It is shown that a large piezoelectric response can be driven by polarization rotation induced by an external electric field, and the computations suggest how to design materials with better performance, and may stimulate further interest in the fundamental theory of dielectric systems in finite electric fields.
Journal ArticleDOI
Lead-free piezoelectric ceramics: Alternatives for PZT?
Thomas R. Shrout,Shujun Zhang +1 more
TL;DR: In this paper, the intrinsic nature of the dielectric and piezoelectric properties of Pb(Zr,Ti)O3 is compared with the various families of soft and hard PZTs.
Journal ArticleDOI
Large electric-field-induced strain in ferroelectric crystals by point-defect-mediated reversible domain switching.
TL;DR: It is shown that with a different mechanism, an aged BaTiO3 single crystal can generate a large recoverable nonlinear strain of 0.75% at a low field of 200 V mm−1.