Article
Chemistry, Physical
Jin Su Baek, Jung-Hyuk Koh
Summary: In this paper, the correlation between the Curie temperature and tolerance factor of the (1-x)BHT-xBCT system was studied. It was found that the Curie temperature can be controlled by the tolerance factor, and this was confirmed through experiments on (1-x)BHT-xBCT ceramics.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Materials Science, Ceramics
Mei-Chieh Yu, Cheng-Che Tsai, Cheng-Shong Hong, Yuan-Xin Zhang, Guang-Huan Feng, Sheng-Yuan Chu
Summary: In this study, multilayer piezoelectric ceramics were prepared using the solid-state synthesis technique and sintered in a reduced atmosphere. The addition of LiF effectively reduced the sintering temperature and increased the activation energy. The study also analyzed the effects of domain wall contributions and Rayleigh behavior on the electrical properties of the ceramics.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2023)
Article
Materials Science, Ceramics
Wen Mo, Xin Luo, Yangyang Zhang, Huiyan Niu, Ziyan Fang, Liangwei Hu, Kun Liu, Qifan Li, Yong Chen, Meng Shen
Summary: In this work, Na0.5Bi4.5Ti3.94-xMn0.06NbxO15+y bismuth-layered ferroelectric ceramics were prepared and the effect of Nb5+ content on crystal morphology, electrical properties, and piezoelectric performance was systematically investigated. The introduction of Nb5+ increased the ratio of b/a lattice parameter, leading to octahedral distortion and structural transformation tendency, which improved the ferroelectric properties and achieved enhanced piezoelectric performance in Na0.5Bi4.5Ti3.94-xMn0.06NbxO15+y ceramics.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2023)
Article
Engineering, Electrical & Electronic
Liqing Hu, Liwen Fu, Xiaodan Ren, Shuguang Zheng, Sanhong Wang, Zhuo Xu, Yongke Yan
Summary: High-temperature ultrasonic detection technology has gained significant attention in recent years. The detection capability of conventional piezoelectric ceramics is limited at high temperatures. This study presents a new approach by doping ceramics with 0.125 mol% Nb5+, resulting in improved temperature stability and greater potential for high-temperature piezoelectric device applications.
SENSORS AND ACTUATORS A-PHYSICAL
(2023)
Article
Chemistry, Physical
Shiyi Zhang, Mengdi Cheng, Yangxi Yan, Zhimin Li, Pangpang Wang, Ri-ichi Murakami, Dongyan Zhang
Summary: In this study, Nd3+ ions were introduced into PNN-PHT ceramics through the solid-state method, resulting in excellent piezoelectric and dielectric properties. The optimized piezoelectric coefficient, dielectric constant, electromechanical coupling factor, and dielectric loss were found to be 1125 pC/N, 8667, 0.66%, and 1.94% respectively. The extrinsic contribution to the piezoelectricity of the Nd-doped PNN-PHT ceramics was found to be up to 19% in the optimal region.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Nanoscience & Nanotechnology
Changbai Long, Wenjie Zhou, Wei Ren, Yijun Zhang, Kun Zheng, Laijun Liu
Summary: By introducing (Li0.5Pr0.5) co-substitution at the A site, the piezoelectric activity and electrical resistivity of CaBi2Ta2O9-based ceramics were significantly improved, making them suitable for high-temperature piezoelectric applications.
SCRIPTA MATERIALIA
(2021)
Article
Materials Science, Multidisciplinary
Xuewen Peng, Tianwen Zhu, Ting Wang, Xunzhong Shang, Taosheng Zhou, Weiping Gong, Jinming Guo
Summary: Simultaneous achievement of large piezoelectric response and broad service temperature range was achieved by introducing manganese dioxide (MnO2) into a BY-PZT matrix and optimizing the Zr/Ti ratios. The addition of MnO2 significantly increased the Q(m) and decreased the tan delta, while further adjusting the Ti nonstoichiometry improved the Q(m) and reduced the tan delta. This study not only solves the problem of pyrochlore phase generation in the mass production of BY-PZT-based ceramics, but also opens up possibilities for using the new power-type piezoelectric ceramics in high-temperature applications.
JOURNAL OF MATERIALS SCIENCE
(2023)
Article
Materials Science, Ceramics
Myang Hwan Lee, Hae In Choi, Da Jeong Kim, Ji Su Kim, Tae Kwon Song
Summary: Hard piezoelectric properties were investigated in lead-free BiFeO3-BaTiO3 (BF- BT) ceramics. Rhombohedral (R) phase ceramics of (1 - x)BF-xBT (x = 0.20-0.30) were prepared. The x = 0.20 ceramic showed the best hard piezoelectric properties, with the highest Q(m) = 403 and the highest T-C = 607°C. In contrast, the x = 0.30 ceramic showed soft piezoelectric properties, with d(3)(3) = 301 pC/N and k(p) = 0.33, and T-C = 510°C. The BF-BT system in the R-phase-rich region has good hard piezoelectric properties for transducer applications.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2023)
Article
Chemistry, Physical
Shaozhao Wang, Huajiang Zhou, Daowen Wu, Lang Li, Yu Chen
Summary: In this study, SrBi4Ti4O15 high-temperature piezoelectric ceramics with the addition of different oxides were prepared and investigated for their phase structures and electrical properties. The addition of Cr2O3 was found to significantly enhance the piezoelectric properties of SBT. Among the compositions, Sr0.92Gd0.053Bi4Ti4O15 + 0.2 wt% Cr2O3 exhibited the best electrical properties, making it suitable for high-stability piezoelectric sensors operating below 500 degrees C.
Article
Engineering, Electrical & Electronic
Xueliang Duan, Juanjuan Wang, Yuyang He, Pengkang Ma
Summary: In this study, high-dielectric (1 - x)(Bi0.5Na0.5)TiO3-x(Ba0.85Ca0.15)(Zr0.1Ti0.9)O-3 (BNT-BCZT) ceramics were fabricated by combining solid-state sintering technique and two-part synthesis. XRD measurements confirmed the formation of a stable solid solution between BNT and BCZT. The BNT-BCZT ceramics exhibited larger piezoelectric constant, lower remnant polarization, and lower coercive field compared to pure BNT ceramics.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2023)
Article
Materials Science, Ceramics
Feifei Zhang, Yugen Xu, Heng Yang, Shangyi Guan, Wei Shi, Yulin Chen, Chenting Huang, Jie Xing, Hong Liu, Qiang Chen
Summary: This study synthesized Bi4Ti3O12 high-temperature piezoelectric ceramics composed of 0.03 mol (Nb, Ta)(5+) substituting B site and x mol CeO2 (x = 0-0.05) substituting A site using the conventional solid-state reaction method. The effects of Ce additive on the structures and electrical properties of these ceramics were investigated systematically.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2022)
Article
Materials Science, Ceramics
Feng Luo, Zhimin Li, Jiyuan Chen, Yan Yangxi, Dongyan Zhang, Maolin Zhang, Yue Hao
Summary: BiFeO3-BaTiO3-based solid solutions show promising potential for high-temperature piezoelectric devices due to their high Curie temperature and excellent electrical properties. An optimized composition with intentional introduction of MnO and MnO2 mixture resulted in a large piezoelectric constant and high thermal stability in the ceramic specimen. The high d(33) in the ceramic was attributed to a synergistic effect of rhombohedral distortion, intrinsic response, and ferroelectric order.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2022)
Article
Engineering, Electrical & Electronic
Yuanyuan Sun, Huabin Yang, Shibo Guan, Jiwen Xu, Weiran Huang, Minhong Jiang, Qiaohong Chen
Summary: Experimental study investigated the structure, microstructure, piezoelectric properties, ferroelectric properties, and Curie temperature of BFBT-BZT ceramics, showing that the composition at x=0.3 exhibits high piezoelectric performance and Curie temperature. Additionally, ceramics at x=0.24 display a high Curie temperature and low dielectric loss.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2021)
Article
Engineering, Electrical & Electronic
Fanghui Mou, An Xue, Qibin Liu, Shiqiang Peng, Yuanyu Wang, Enpei Cai, Sifan Wang
Summary: The study found that different doping contents can affect the phase coexistences of lead-free piezoelectric ceramics, with ceramics exhibiting multiphase coexistences showing superior electrical properties, achieving outstanding performance at x = 0.2 mol%.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2021)
Article
Engineering, Electrical & Electronic
Yunjing Shi, Hongli Wu, Yang Liu, Zunqi Liu, Jiwei Zhai
Summary: In this study, Hf-doped BiFeO3-based ceramics were prepared and their effects on the crystal structure and piezoelectric properties were investigated. The introduction of Hf led to an enlarged bond length and bond angle, resulting in a distorted structure of the R phase. The Hf4+ doping effectively increased the content of the R phase and enhanced the remanent polarization and piezoelectric response, while reducing the dielectric loss.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2023)