Article
Materials Science, Multidisciplinary
Haoyang Leng, Yongke Yan, Xiaotian Li, Sumanta Kumar Karan, Mark Fanton, Shashank Priya
Summary: It is found that 001 textured ceramics have higher d(33) values compared to random and 111 textured ceramics, while 111 textured ceramics exhibit higher Q(m) values due to less polarization rotation. MnO2 doping can further improve the Q(m) values for both 001 and 111 textured ceramics. These results highlight the potential of textured piezoelectric ceramics for high-power applications.
JOURNAL OF MATERIALS CHEMISTRY C
(2023)
Article
Chemistry, Inorganic & Nuclear
Yunjing Shi, Xiaoyu Dong, Bo Shen, Jiwei Zhai
Summary: In this study, the piezoelectric properties of 0.7BFBT-T were enhanced through quenching. A suitable quenching temperature increased the content of the rhombohedral phase, leading to a highly distorted structure and magnification of the dipole moment, which was beneficial for enhancement of the polarity. Furthermore, quenching inhibited oxygen vacancies and increased the size and orderliness of domains, reducing the pinning effect.
INORGANIC CHEMISTRY FRONTIERS
(2022)
Article
Physics, Applied
Mingyang Tang, Xin Liu, Yike Wang, Xiaodan Ren, Zhuo Xu, Yongke Yan
Summary: In this study, [001] textured Sm0.025Pb0.9625(Mg1/3Nb2/3)(0.74)Ti0.26O3 (Sm-PMN-26PT) ceramics were synthesized using the templated grain growth method. The dielectric, piezoelectric, and electromechanical properties of both untextured and textured ceramics were investigated. The textured ceramics showed excellent piezoelectric properties, with a high d(33) coefficient of 1882 pC/N and an extremely high d(33)* of 2510 pm/V at room temperature. The improvement in piezoelectric properties was attributed to the increase in dielectric constant e(33) and electrostriction coefficient Q(33) in the textured ceramics.
JOURNAL OF APPLIED PHYSICS
(2023)
Article
Chemistry, Physical
Dae-Su Kim, Jae-Min Eum, Su-Hwan Go, Ho-Sung Shin, Hero Kim, Seok-June Chae, Sun-Woo Kim, Eun-Ji Kim, Jong-Un Woo, Sahn Nahm
Summary: Thick films of 0.96(K0.5Na0.5)(Nb1-ySby)O-3-0.04SrZrO(3) [KN(N1-ySy)-SZ] were textured using NaNbO3 templates, showing promising piezoelectric properties. A thick film with 3.0 mol% NaNbO3 seed exhibited high d(33) values and excellent thermal stability, making it a suitable candidate for piezoelectric energy harvesters.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Materials Science, Multidisciplinary
Yaqing Ma, Linjing Liu, Hang Xie, Zerui Zhang, Qiangwei Kou, Rui Lv, Bin Yang, Yunfei Chang, Fei Li
Summary: In this study, the piezoelectric response of (Bi0.5Na0.5)TiO3 (BNT)-based ceramics was enhanced by exploring piezoelectric anisotropy and domain engineering in composition and microstructure-controlled textured ceramics. The textured ceramics exhibited more ordered domains and facilitated domain switching behavior, resulting in significantly enhanced piezoelectric properties compared to non-textured counterparts.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2024)
Article
Materials Science, Ceramics
Kun Zheng, Yi Quan, Jian Zhuang, Jinyan Zhao, Wei Ren, Lingyan Wang, Zhe Wang, Gang Niu, Chunlong Fei, Zhishui Jiang, Li Wen
Summary: Textured ceramics with 1% Sm-substituted PMN-29PT were successfully prepared, exhibiting enhanced piezoelectric properties and reduced relaxor behaviors compared to their non-textured counterparts. The improvements in dielectric and piezoelectric properties were discussed from the standpoint of extrinsic contributions in textured ceramics, indicating potential for high performance piezoelectrics at a lower cost.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2021)
Article
Chemistry, Physical
Su-Hwan Go, Yeon-Gyeong Chae, Seok-June Chae, Eun-Ji Kim, Hyeon-Min Yu, Wan-Ho Cho, Sahn Nahm
Summary: A [001]-textured KNNS-0.02CZ-0.02ABZ piezoceramic with a large d(33) value was found, which shows great potential for loudspeaker applications.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Materials Science, Ceramics
Mingyang Tang, Xin Liu, Xiaodan Ren, Yike Wang, Yue Wu, Sanhong Wang, Zhuo Xu, Liwei D. Geng, Yongke Yan
Summary: This article characterized the dielectric, ferroelectric, and piezoelectric properties of random and textured Mn-PMN-PZT ceramics under uniaxial stress. Textured ceramics showed a better piezoelectric response and depolarization resistance under uniaxial pressure, while the ferroelectricity of both random and textured ceramics was suppressed.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2023)
Article
Nanoscience & Nanotechnology
Yunjing Shi, Xiaoyu Dong, Fei Yan, Kun Zhu, Guanglong Ge, Jinfeng Lin, Yingbo Cao, Jiwei Zhai
Summary: BiFeO3-xBaTiO3 ceramics were prepared using the templated grain growth method, with the addition of BaTiO3 templates improving orientation degree and remanent polarization of the materials, making them easier and quicker to pole.
SCRIPTA MATERIALIA
(2021)
Article
Materials Science, Ceramics
Mingyang Tang, Liqing Hu, Yue Wu, Yike Wang, Xin Liu, Xiaodan Ren, Shuguang Zheng, Sanhong Wang, Zhuo Xu, Liwei Geng, Yongke Yan
Summary: This study investigates the electromechanical properties of [001]-textured Mn-PMN-PZT ceramics under high pressure. The dielectric constant of textured ceramics increases first and then decreases as pressure increases. The method of direct calculation and admittance fitting can obtain similar results, but the admittance fitting method provides more accurate results at high pressure.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2023)
Article
Materials Science, Ceramics
Michael J. Brova, Beecher H. Watson, Rebecca L. Walton, Elizabeth Kupp, Mark A. Fanton, Richard J. Meyer, Gary L. Messing
Summary: This study investigates the effects of composition and residual template particles on the electromechanical properties of CuO-doped PYN-PMN-PT ceramics, showing that textured compositions exhibit improved properties but must be sufficiently on the rhombohedral side of the morphotropic phase boundary.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2021)
Article
Materials Science, Ceramics
Shuai Yang, Mingwen Wang, Lu Wang, Jinfeng Liu, Jie Wu, Jinglei Li, Xiangyu Gao, Yunfei Chang, Zhuo Xu, Fei Li
Summary: Textured PMN-28PT ceramics with high-quality texturing degree of 99% and using only 1 vol.% of BT templates were successfully fabricated, showing 80% piezoelectric coefficient and 96% electromechanical coefficient comparable to single crystal counterparts. With further enhancement of piezoelectric properties through AC-poling, the textured PMN-28PT ceramics are considered promising for advanced electromechanical devices due to their high properties, low cost, and easy mass production.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2022)
Article
Materials Science, Multidisciplinary
Haoyan Leng, Yongke Yan, Bo Wang, Tiannan Yang, Hairui Liu, Xiaotian Li, Rammohan Sriramdas, Ke Wang, Mark Fanton, Richard J. Meyer, Long-Qing Chen, Shashank Priya
Summary: This study addresses the challenge of achieving simultaneous presence of hard and soft piezoelectric properties and demonstrates the ultrahigh combined soft and hard piezoelectric properties of MnO2 and CuO co-doped Pb(In1/2Nb1/2)O-3-Pb(Mg1/3Nb2/3)O-3-PbTiO3 ceramics. The outstanding electromechanical properties are explained by considering composition/phase selection, crystallographic anisotropy, and defect engineering.
Article
Nanoscience & Nanotechnology
Qiangwei Kou, Bin Yang, Haobin Lei, Shuai Yang, Zerui Zhang, Linjing Liu, Hang Xie, Yuan Sun, Yunfei Chang, Fei Li
Summary: Lead-free ceramics with superior piezoelectric performance are synthesized by a synergistic design strategy of integrating crystallographic texture, multiphase coexistence, and doping engineering, without sacrificing the Curie temperature. This work provides important guidelines for developing novel ceramics with outstanding piezoelectric properties and can largely expand application fields of textured BaTiO3-based ceramics into high-performance and multilayer electronic devices.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Engineering, Manufacturing
Quanpei Du, Chao Zhang, Chun-Lei Liu, Wenjing Zhou, Fangfang Zeng, Kanghua Li, Kailun Zou, Guifen Fan, Shenglin Jiang, Qiuyun Fu, Jia-Min Wu, Guangzu Zhang
Summary: This study innovatively utilizes the VPP technique to fabricate highly textured and 3D-structural barium titanate piezoelectric ceramics. Compared to random ceramics, printed textured barium titanate ceramics exhibit smaller dielectric permittivity, larger piezoelectric coefficient, significantly increased piezoelectric voltage coefficient g33 and figure of merit d33xg33, and improved piezoelectric output performance.
ADDITIVE MANUFACTURING
(2023)
Article
Chemistry, Physical
Jing Guo, Mingming Si, Xuetong Zhao, Li Wang, Ke Wang, Jianyu Hao, Hong Wang, Clive A. Randall
Summary: This study successfully integrated C-60 with ZnO using a cold sintering process, forming thin C-60 layers at the ZnO grain boundaries and significantly improving the electrical properties of the material.
Article
Engineering, Environmental
Liuting Li, Jiufeng Dong, Renchao Hu, Xianqiang Chen, Yujuan Niu, Hong Wang
Summary: In this study, the introduction of calcium fluoride nanoparticles into polyimide films was found to increase the permittivity and power density, while reducing conduction loss. This novel fluoride nanofiller shows great potential for improving energy storage in high-temperature composites.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Engineering, Environmental
Huajing Fang, Liangliang Wu, Hailong Ma, Wenting Wu, Lingqi Wu, Yue Zhang, Hong Wang
Summary: This study presents a dual-function biomimetic eye based on a photoelectrochemical device, which integrates light intensity detection and light transmission adjustment. The rational design of interfaces and electrolyte enables stable operation in harsh environments, offering potential applications in bionic devices.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Materials Science, Ceramics
Jianyu Hao, Jing Guo, Changli Fu, Mingming Si, Xian Xue, Xiaomeng Li, Hong Wang
Summary: This study investigates the cold sintering process of Na2WO4 ceramics using Na2WO4·2H2O dry powders as the liquid phase. The effects of sintering parameters on the CSP are systematically studied, and the optimum cold sintering conditions are determined.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2022)
Article
Materials Science, Ceramics
Xianqiang Chen, Binfeng Zhao, Naichao Chen, Jin Cheng, Mingzhao Dang, Feng Wang, Xinwei Xu, Hong Wang
Summary: Nano-sized CaF2 powders synthesized using a wet chemical method enable low-temperature sintering and superior microwave dielectric properties. The addition of LiF as a sintering aid further improves the microwave dielectric properties of CaF2 ceramics.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2022)
Article
Chemistry, Physical
Yujuan Niu, Jiufeng Dong, Yifei He, Xinwei Xu, Shuai Li, Kai Wu, Qing Wang, Hong Wang
Summary: In this study, a high-temperature dielectric based on polyimide and polyetherimides was developed, which effectively suppressed high-field electrical conduction at high temperatures by creating a molecular stacking structure at the interface and accumulating space charges. The material exhibited excellent capacitive performance even at high temperatures and was compatible with roll-to-roll processing.
Article
Materials Science, Ceramics
Binfeng Zhao, Xianqiang Chen, Naichao Chen, Xinwei Xu, Yani Lu, Jin Cheng, Hong Wang
Summary: With the development of 5G/6G communication, the demand for low-temperature co-fired ceramic (LTCC) has become increasingly important. In this study, the addition of a sintering aid successfully lowered the sintering temperature of ceramics, making them suitable for LTCC technology and potential candidates for 5G/6G applications.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2023)
Article
Robotics
Daiyue Wei, Quan Xiong, Jiufeng Dong, Huacen Wang, Xuanquan Liang, Shiyu Tang, Xinwei Xu, Hongqiang Wang, Hong Wang
Summary: This study successfully develops nanocomposite films with high dielectric constant and low loss by accumulating charges at the matrix-filler interfaces, enhancing the force. Additionally, ultra-thin and lightweight EA clutches are fabricated with low power consumption and high load-bearing capacity. The extensive applications of this technology in the field of robotics are demonstrated through the display of a dexterous robotic hand.
Article
Materials Science, Multidisciplinary
Long Teng, Li Li, Jingxia Huang, Shuai Li, Renchao Hu, Xuechang Zhou, Hong Wang
Summary: This study presents a fully recyclable transient electronic device that can destroy circuits upon thermal trigger and recycle electronic components with high efficiency, offering new possibilities for sustainable electronic devices.
ADVANCED MATERIALS TECHNOLOGIES
(2023)
Article
Chemistry, Physical
Renchao Hu, Desheng Pan, Xinwei Xu, Bin Xiao, Hong Wang
Summary: This study synthesized Fex(CoyNi1-y)100-x particles with two phases (face-centered cubic (FCC) and hexagonal close-packed (HCP)) and found that they exhibit excellent electromagnetic wave absorption, suitable for addressing electromagnetic interference in 5G networks in both centimeter-wave and millimeter-wave bands, with a wide bandwidth range and remarkable absorption performance.
JOURNAL OF MATERIOMICS
(2023)
Article
Chemistry, Multidisciplinary
Fei Jin, Yuanming Zhu, Li Li, Zizhao Pan, Desheng Pan, Meng Gu, Qian Li, Lang Chen, Hong Wang
Summary: High-entropy strategy is used to fabricate an ultra-thin spinel ferrite film with superior saturation magnetization, low coercivity, excellent resistivity, and switchable magnetic anisotropy, which is of great significance for the development of high-density memory devices.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Zizhao Pan, Li Li, Lina Wang, Guangfu Luo, Xinwei Xu, Fei Jin, Jiufeng Dong, Yujuan Niu, Liang Sun, Chuanfei Guo, Wenqing Zhang, Qing Wang, Hong Wang
Summary: This study reported the control of energy level of charge traps in polymer film capacitors by tailoring molecular structures, leading to significant inhibition of charge loss at high temperatures. The optimized crosslinking structure exhibited ultrahigh discharged energy density and high charge/discharge efficiencies, along with excellent cyclability and self-healing features.
ADVANCED MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Yujuan Niu, Ruixin Zhang, Jiufeng Dong, Zizhao Pan, Hong Wang
Summary: In recent years, there has been an increasing demand for high temperature-resistant dielectrics due to the growing need for power supply in harsh environments. However, polymer-based composites with high glass-transition-temperature polymers face challenges in achieving homogeneous dispersion of fillers. This study focuses on the design and preparation of poly-etherimide (PEI)-based nanocomposites filled with modified BT nanoparticles. The nanocomposites, mBT/PEI, exhibit improved dielectric and energy storage performance, with a maximum energy density of 4.2 J cm-3 at 2 vol%, which is 31% higher than that of the nanocomposite BT/PEI without surface modification.
Article
Chemistry, Physical
Zizhao Pan, Yupeng Pan, Li Li, Xinwei Xu, Jiufeng Dong, Fei Jin, Liang Sun, Yujuan Niu, Chen Xu, Hong Wang
Summary: By introducing high contents of medium-polar ester group and end-group (St) modification into a biodegradable polymer polylactic acid (PLA), the loss can be synergistically reduced and the energy storage density (Ue) and charge-discharge efficiency (h) can be enhanced. The modified PLA polymer (PLA-St) exhibits an Ue of 6.5 J/cm(3) with an ultra-high h (95.4%), outperforming the best reported dielectric polymers. The modified molecular structures generate deep trap centers and restrict the local dipole motions, resulting in reduced conduction loss and improved high-temperature capacitive performance. Additionally, the PLA-St polymer shows excellent self-healing ability and cyclic stability surviving over 500,000 charge-discharge cycles. This work provides an efficient route to next-generation eco-friendly dielectric polymers with high energy density, low loss, and long-term stability.
JOURNAL OF MATERIOMICS
(2023)
Article
Materials Science, Ceramics
Xiaomeng Li, Xian Xue, Qiyin Lin, Zeming Qi, Hong Wang, Yingying Zhao, Jing Guo
Summary: This work presents temperature stable xLi2MoO4-(1-x)(LiBi)0.5MoO4 (x = 0, 40, 50, 60, 70, 100 vol%) microwave dielectric ceramics obtained by cold sintering process under mild sintering conditions. The ceramics exhibit high relative densities and good microwave dielectric properties, with TCF = +0.7 ppm/degrees C obtained at x = 50 vol%. The dielectric responses are dominated by polar optical phonons based on the fitted infrared reflectivity spectrum.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2023)
