Article
Materials Science, Multidisciplinary
Wei Liu, Haoxin Sun, Zhonghua Li, Jianhong Wang, Peikang Bai
Summary: Porous honeycomb lead zirconate titanate (PZT) ceramics with ordered pore channels were fabricated through ionotropic gelation. Cement-containing piezoelectric composites were created by casting piezoelectric cement/PZT paste with different mass fractions of PZT into the porous ceramics. The composites showed excellent electromechanical coupling behavior and proved to be suitable for structure health monitoring.
MATERIALS & DESIGN
(2023)
Article
Chemistry, Physical
Faysal Naeem, Mohsin Saleem, Hamid Jabbar, Gulraiz Tanvir, Fiza Asif, Abrar H. Baluch, Muhammad Irfan, Abdul Ghaffar, Adnan Maqbool, Tayyab Rafiq
Summary: This work successfully synthesized lead-free piezoelectric ceramics 0.74(Bi0.5Na0.5TiO3)-0.26(SrTiO3) (BNT-ST26) and niobium-substituted (Nb-BNT-ST26), and confirmed the effect of niobium substitution on the perovskite phase structure of BNT-ST26 ceramics through X-ray diffraction and Raman spectra. Electromechanical properties revealed that addition of 0.5% niobium resulted in the optimal piezoelectric performance and dielectric effect, making it suitable for high-temperature, stable, frequency-dependent, lead-free piezoelectric devices.
Article
Chemistry, Physical
Jiahao Jiang, Hong Li, Chunlin Zhao, Cong Lin, Xiao Wu, Tengfei Lin, Min Gao, Zhao Wang
Summary: The continuous improvement of piezoelectric coefficient and dielectric constant in lead-free piezoceramics based on KNN is achieved by phase boundary formation and the addition of a specific compound. This work demonstrates the potential multifunctional applications in high-temperature piezoelectric and dielectric devices with enhanced piezoelectricity and thermal stability.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Physical
Supalak Manotham, Pharatree Jaita, Pichitchai Butnoi, Narumon Lertcumfu, Gobwute Rujijanagul
Summary: This study demonstrates an alternative approach to increase the depolarization temperature of BNT-based perovskite piezoelectric materials by using boron oxide as an additive, which also enhances various properties of the ceramics.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Materials Science, Ceramics
Seong Wook Cho, Jeong Min Baik, Young Hun Jeong
Summary: Dielectric, ferroelectric, and piezoelectric properties of 0.36(Bi1-xSmx)ScO3-0.64PbTiO3 (BSPT-xSm) ceramics were studied for high temperature piezo-electric device application. Sm-substitution in BSPT-xSm ceramics resulted in degradation of their rhombohedral side and enhancement of dielectric constant. However, the grain size and ferroelectric behavior showed insignificant variations. The BSPT-3%Sm ceramic exhibited excellent piezoelectric values and a high ferroelectric transition temperature.
CERAMICS INTERNATIONAL
(2023)
Article
Polymer Science
Qisong Shi, Shifeng He, Yongqing He, Yibo Wu, Ruofan Liu
Summary: This study demonstrates the design and application of a multifunctional piezoelectric composite nanofiber membrane. By adding ionic liquids and ferric chloride hexahydrate (FeCl3 center dot 6H(2)O) to polyacrylonitrile (PAN), the properties of the composite nanofibers, including mechanical, piezoelectric, dielectric, and ferroelectric properties, were improved. The results show that the composite nanofibers have great potential in energy storage devices and flexible piezoelectric sensors.
JOURNAL OF APPLIED POLYMER SCIENCE
(2023)
Article
Materials Science, Ceramics
Renrui Fang, Zhiyong Zhou, Ruihong Liang, Xianlin Dong
Summary: By modulating A-site deficiency, significant enhancements in dielectric and piezoelectric properties of PN-based ceramics were achieved while maintaining a high Curie temperature. This method provides a simple and effective strategy to improve the overall performance in the PN-based ceramic system.
CERAMICS INTERNATIONAL
(2021)
Article
Materials Science, Ceramics
Feifei Guo, Shaokun Zhang, Wei Long, Pinyang Fang, Xiaojuan Li, Zengzhe Xi
Summary: In this study, a two-step solid-state reaction method was used to prepare PNN-PZT/xSnO(2) ceramics, and the effects of SnO2 on their crystalline structure, electromechanical properties, and temperature stability were investigated. The results showed that the introduction of SnO2 improved the performance of PNN-PZT ceramics and provided a promising piezoelectric material for applications such as medical ultrasonic transducers.
CERAMICS INTERNATIONAL
(2022)
Article
Engineering, Manufacturing
Chun-Lei Liu, Quanpei Du, Han Zhou, Jia-Min Wu, Guangzu Zhang, Yu-Sheng Shi
Summary: This study successfully utilized VPP technology to fabricate PZT ceramics, and the addition of PS powders improved the curing performance of the slurry. The particle size of PS powders was found to impact the electrical properties of the resulting ceramics, highlighting the importance of careful control during fabrication.
ADDITIVE MANUFACTURING
(2023)
Article
Materials Science, Ceramics
Renfen Zeng, Fen Ye, Xiangping Jiang, Chao Chen, Xiaokun Huang, Xin Nie
Summary: The microstructure and properties of Ce-doped BTTW-BITT ceramics were analyzed, and it was found that an appropriate amount of Ce ion doping could improve the performance, enhance the piezoelectric activity, and improve the thermal stability.
CERAMICS INTERNATIONAL
(2022)
Article
Chemistry, Applied
Xing Fan, Mengdi Sun, Zhong Li, Zhenhua Chen, Xiaoyong Zhou, Quanxuan Lu, Zhicheng Zhang
Summary: With the increasing attention in the biomedical field and intelligent wearable devices, flexible piezoelectric materials, such as polyvinylidene fluoride (PVDF)-based polymers, have shown a broad potential in the field of sensors. However, the existing materials are expensive and difficult to process, hindering their commercial application. This study focuses on the poly(vinylidene fluoride-tetrafluoroethylene) (P(VDF-TFE), F24) copolymers due to their low cost and great potential in the piezoelectric field. The researchers systematically investigated the structure and dielectric properties of P(VDF-TFE) copolymers with different TFE contents, and explored the effect of thermal annealing on their piezoelectric performances. The results showed that the sample F24-20A130 exhibited the best piezoelectric properties, with a piezoelectric stress constant (d33) of -20 pC/N. This sample also demonstrated excellent response sensitivity in sensing tests, making it a promising material for flexible sensor applications in healthcare and wearable devices.
REACTIVE & FUNCTIONAL POLYMERS
(2022)
Article
Chemistry, Physical
Manish Badole, Hari Narayanan Vasavan, Samriddhi Saxena, Asish Kumar Das, Velaga Srihari, Sunil Kumar
Summary: The effects of La3+ and Al3+ substitution on the structural, dielectric, and piezo-electric properties of (1-x)(K0.5Bi0.5)TiO3-xLaAlO3 ceramics were investigated. With the increase in LAO content, a decrement in tetragonal distortion and an increase in cubic symmetry were observed. The incorporation of LAO in KBT resulted in an improved relaxor behavior and a suppression of oxygen vacancies. The piezo-electric properties were enhanced, with the 3% LAO-doped sample exhibiting the highest piezo-electric charge coefficient and improved piezo-electric voltage coefficient. An energy harvesting experiment was performed on the poled 3% LAO-doped ceramic, showing promising results under normal finger tapping.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Materials Science, Ceramics
Mehdi Shoorangiz, Zahra Sherafat, Elham Bagherzadeh
Summary: The emerging smart PVDF-based composites can address the intrinsic property deficiencies in their components. The properties of these composites are determined by their constituents and fabrication method. In this study, potassium sodium niobate (KNN) and MWCNTs were used as primary reinforcement and to improve electrical properties, respectively. Solution casting was employed to prepare PVDF-KNN-CNT composite films. SEM, XRD, FTIR, and TGA methods were used to characterize the composites, and dielectric, piezoelectric, and ferroelectric properties were investigated. The results showed that the composites' dielectric, piezoelectric, and ferroelectric properties strongly depend on KNN content.
CERAMICS INTERNATIONAL
(2022)
Article
Chemistry, Physical
S. Praharaj, A. Singha, D. Rout
Summary: The study focuses on synthesizing and characterizing a Pb-free perovskite material, which shows significant improvements in key parameters. The doped ceramics exhibit abnormal behavior in dielectric response and temperature stability, making them promising for high-temperature capacitor applications.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Materials Science, Ceramics
Dongxia Tian, Pan Chen, Xu Yang, Baojin Chu
Summary: The study demonstrates a scaling effect in BaTiO3 and Ba0.83Sr0.17TiO3 ceramics with sub-millimeter thickness, showing reduced dielectric constant, increased coercive field, and decreased piezoelectric response. This effect is possibly due to surface layers with a stabilized ferroelectric phase and higher coercive field.
CERAMICS INTERNATIONAL
(2021)
