[001] Oriented BifeO 3-Based Lead-Free Ceramic with a Rapid Piezoelectric Response Under Low Poling Voltage

2021 ◽  
Author(s):  
Yunjing Shi ◽  
Xiaoyu Dong ◽  
Fei Yan ◽  
Kun Zhu ◽  
Guanglong Ge ◽  
...  
Keyword(s):  
Lead Free ◽  
Piezoelectric Response ◽  
Lead Free Ceramic ◽  
Poling Voltage

scholarly journals Temperature-Dependent Ferroelectric and Piezoelectric Response of Yb3+ and Tm3+ co-Doped Ba0.95Ca0.05Ti0.90Zr0.10O3 Lead-Free Ceramic

2020 ◽  
Author(s):  
Yongshang Tian ◽  
Qiqi Wang ◽  
Bingqian Zhang ◽  
Panpan Qin ◽  
Yansheng Gong ◽  
...  
Keyword(s):  
Structural Characteristics ◽  
Orthorhombic Phase ◽  
Lead Free ◽  
Piezoelectric Response ◽  
Structural Defects ◽  
Future Research ◽  
Electrical Measurements ◽  
Temperature Dependent ◽  
Lead Free Ceramic ◽  
Co Doped

Abstract The electrical properties of piezoelectric ceramics are temperature-dependent, which affects their potential for applications in environments with temperature variation. In this work, a Yb3+ and Tm3+ co-doped Ba0.95Ca0.05Ti0.90Zr0.10O3 (BCTZ-YT) dense lead-free ceramic was prepared using a modified polymeric precursor route. The structural characteristics were investigated by X-ray diffraction, scanning electron microscopy, and Raman spectroscopy. The temperature-dependence of the ferroelectricity, piezoelectricity, and permittivity was studied in detail. On the basis of structural and electrical measurements at various temperatures, the mechanism of a lack of oxygen vacancies, small structural defects, and small defect dipoles was deduced. This study reveals that the ferroelectricity and piezoelectricity are temperature-dependent, whereas the capacitance is essentially unchanged with increasing temperature owing to the presence of a pure orthorhombic phase. The results of this study are expected to inform future research.

A novel relaxor (Bi,Na,Ba)(Ti,Zr)O 3 lead‐free ceramic with high energy storage performance

2021 ◽  
Author(s):  
Muhammad Kashif Bilal ◽  
Jian Wang ◽  
Rabia Bashir ◽  
Huan Liu ◽  
Sana Ullah Asif ◽  
...  
Keyword(s):  
Energy Storage ◽  
High Energy ◽  
Lead Free ◽  
Storage Performance ◽  
Lead Free Ceramic ◽  
High Energy Storage

Temperature-driven phase transitions and enhanced piezoelectric responses in Ba(Ti0.92Sn0.08)O3 lead-free ceramic

2019 ◽  
Vol 45 (4) ◽  
pp. 4461-4466 ◽  
Author(s):  
Lingcan Qin ◽  
Changrong Zhou ◽  
Qingning Li ◽  
Ling Yang ◽  
Jiwen Xu ◽  
...  
Keyword(s):  
Phase Transitions ◽  
Lead Free ◽  
Lead Free Ceramic

Technology and Properties of Ferroelectromagnetic Lead–Free BFN–Ferrite Composites

2013 ◽  
Vol 58 (4) ◽  
pp. 1405-1409 ◽  
Author(s):  
D. Bochenek ◽  
P. Niemiec
Keyword(s):  
Magnetic Properties ◽  
Ceramic Composite ◽  
Composite Powder ◽  
Barium Carbonate ◽  
Lead Free ◽  
Relaxation Phenomena ◽  
Lead Free Ceramic ◽  
Calcination Method ◽  
Ferrite Composites

Abstract A lead free ceramic composite 0.9BaFe0:5Nb0:5O3-0.1Ni0:5Zn0:5Fe2O4 (BFN-NZF) with ferroelectromagnetic properties have been obtained in presented work. Ceramic composite powder obtained from the simple oxides Fe2O3, Nb2O5, ZnO, NiO and barium carbonate BaCO3. The composition of the composite was chosen so that the ratio of the BFN and NZF components was 90:10. The synthesis of components of BFN-NZF composite was performed using the calcination method. Final densification of synthesized powder has been done using free sintering. The XRD, the microstructure, EDS and dielectric investigations were performed. For comparison of the BFN ceramic and the BFN-NZF composites, temperature and frequency impedance research was conducted. Relaxation phenomena were observed at temperatures above 235°C in the BFN ceramic and above 150°C in the BFN-NZF composite. Obtained results show the coexistence of ferroelectric and magnetic properties. Such properties of obtained composites give the possibility to use them in magnetoelectric transducers.

Enhanced energy storage properties of a novel lead-free ceramic with a multilayer structure

2018 ◽  
Vol 6 (29) ◽  
pp. 7905-7912 ◽  
Author(s):  
Fei Yan ◽  
Haibo Yang ◽  
Lin Ying ◽  
Tong Wang
Keyword(s):  
Energy Storage ◽  
Solid State ◽  
Multilayer Structure ◽  
Tape Casting ◽  
Lead Free ◽  
Solid State Sintering ◽  
Energy Storage Properties ◽  
Lead Free Ceramic ◽  
Sintering Method ◽  
Storage Properties

A (SrTiO3 + Li2CO3)/(0.94Bi0.54Na0.46TiO3 − 0.06BaTiO3) (STL/BNBT) lead-free ceramic with a multilayer structure was shaped via the tape-casting and subsequent lamination technique, and sintered using the conventional solid state sintering method.

Defect chemistry and colossal dielectric behavior of Nd-modified SrTiO3 lead-free ceramic materials

2020 ◽  
Vol 46 (10) ◽  
pp. 16644-16652 ◽  
Author(s):  
Xu Guo ◽  
Yongping Pu ◽  
Wen Wang ◽  
Jiamin Ji ◽  
Jingwei Li ◽  
...  
Keyword(s):  
Ceramic Materials ◽  
Defect Chemistry ◽  
Dielectric Behavior ◽  
Lead Free ◽  
Lead Free Ceramic

A temperature stable (Ba1–Ce )(Ti1–/2Mg/2)O3 lead-free ceramic for X4D capacitors

2020 ◽  
Vol 821 ◽  
pp. 153480 ◽  
Author(s):  
Dandan Han ◽  
Changhao Wang ◽  
Dayong Lu ◽  
Fayaz Hussain ◽  
Dawei Wang ◽  
...  
Keyword(s):  
Lead Free ◽  
Lead Free Ceramic

Lead-Free Ceramic Transducers for Sonar Applications

2018 ◽  
Author(s):  
Valsala Kurusingal ◽  
Christopher Dean ◽  
George Gatsios
Keyword(s):  
Lead Free ◽  
Lead Free Ceramic

Structural and dielectric properties of the (Bi0.500Na0.500)0.920Ba0.065La0.010TiO3 lead-free ceramic system

2018 ◽  
Vol 533 (1) ◽  
pp. 85-91
Author(s):  
Y. Mendez-González ◽  
F. Calderón-Piñar ◽  
A. Peláiz-Barranco ◽  
A. Pentón-Madrigal ◽  
P. Saint-Grégoire ◽  
...  
Keyword(s):  
Dielectric Properties ◽  
Lead Free ◽  
Ceramic System ◽  
Lead Free Ceramic

FLEXOELECTRIC COMPOSITE — A NEW PROSPECT FOR LEAD-FREE PIEZOELECTRICS

2010 ◽  
Vol 03 (01) ◽  
pp. 79-81 ◽  
Author(s):  
BAOJIN CHU ◽  
WENYI ZHU ◽  
NAN LI ◽  
L. ERIC CROSS
Keyword(s):  
Piezoelectric Properties ◽  
Piezoelectric Materials ◽  
Physical Phenomenon ◽  
Mechanical Strain ◽  
Dielectric Materials ◽  
Electric Polarization ◽  
Lead Free ◽  
Piezoelectric Response ◽  
Bst Ceramics ◽  
Better Than

Flexoelectricity describes the physical phenomenon of the generation of electric polarization from mechanical strain gradient in solid insulators. In common dielectric materials, the flexoelectric coefficient is trivially small ~10-10 C/m. In Ba(Sr,Ti)O 3 (BST) ceramics, flexoelectric coefficient up to 10-4 C/m was observed. Such high coefficient makes it possible to design high piezoelectric response flexoelectric composites. In this letter, we will demonstrate that the newly designed flexoelectric composites could have piezoelectric properties better than conventional piezoelectric materials.

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