Article
Engineering, Electrical & Electronic
Thi Hinh Dinh, Hyoung-Su Han, Vu Diem Ngoc Tran, Vinh Le Van, Jae-Shin Lee
Summary: Ternary lead-free (0.86-x)Bi0.5Na0.5TiO3-0.14Bi(0.5)K(0.5)TiO(3)-xBaZrO(3) piezoelectric ceramics with high relative density and a single perovskite structure were successfully fabricated. The addition of BaZrO3 enhances the piezoelectric properties, with the highest d(33) observed in the x = 0.01 composition and the highest d(33)* found in the x = 0.03 composition. Especially, the x = 0.03 composition exhibits a high d(33)* of 645 pm/V with a small variation in the temperature range of 25-100 degrees C. These investigated piezoelectric ceramics have great potential for thermal stability lead-free piezoelectric actuator applications.
JOURNAL OF ELECTRONIC MATERIALS
(2023)
Article
Materials Science, Ceramics
Sujata Swain, P. Kumar, Sonia
Summary: Lead-free ferroelectric ceramics BaTiO3, Ba(Zr0.2Ti0.8)O-3-0.5(Ba0.7Ca0.3)TiO3, and (Bi0.5Na0.5)TiO3-2.6(BaTiO3)-12(Bi0.5K0.5)TiO3 were synthesized by high energy ball milling assisted solid-state reaction route. Detailed characterizations were carried out on dielectric, polarization-electric field loop, and mechanical properties of these sintered ceramics.
CERAMICS INTERNATIONAL
(2021)
Article
Engineering, Electrical & Electronic
Jianjia Zhang, Yue Wen, Mengmeng Hao, Fangfang Zeng, Huitao Guo, Guifen Fan, Wenzhong Lv
Summary: The KNLN-0.06BZ lead-free ceramics prepared by TSS exhibited higher density and better electrical properties compared to those prepared by CS, possibly due to fewer oxygen vacancies facilitating domain switching. Multiple phases may coexist in all ceramic samples, with lower energy barrier at the phase boundary allowing for effective domain switching and resulting in high piezoelectric properties.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2021)
Article
Engineering, Electrical & Electronic
Kang Zhao, Mupeng Zheng, Xiaodong Yan, Mankang Zhu, Yudong Hou
Summary: Lead-free piezoceramics are at the international research forefront in functional materials. This study used ultrafine powder synthesized by the molten salt method to prepare high-quality Ba0.85Ca0.15Ti0.9Zr0.1O3 (BCTZ) ceramics, and found enhanced piezoelectric properties at an intermediate grain size. Optimization of the poling parameters resulted in excellent performance under different poling methods, providing new insights for improving the performance of piezoelectric ceramics.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2021)
Article
Acoustics
Huabin Yang, Yuanyuan Sun, Huayun Gao, Xinyi Zhou, Hua Tan, Chang Shu, David Salamon, Shibo Guan, Shenggui Chen, Haibo Zhang
Summary: In this study, BF-xBT ceramics were prepared by a solid-state approach, and the effect of BT content on the properties was investigated. The ceramic with a BT content of 0.30 exhibited the highest sensitivity and showed excellent stability under high-temperature conditions.
IEEE TRANSACTIONS ON ULTRASONICS FERROELECTRICS AND FREQUENCY CONTROL
(2022)
Article
Materials Science, Ceramics
Tianqiong Wu, Wu Zhang, Fafu Liu, Zhanmin Dou, Shengqiang Han, Pengyuan Fan, Sheng-Gui Chen, Chanatip Samart, David Salamon, Hua Tan, Haibo Zhang
Summary: In this research, the introduction of 0.93NBT-0.07BT ceramic into 0.7BF-0.3BT ceramic has enhanced the piezoelectric property by creating a morphotropic phase boundary. XRD analysis confirms the presence of a homogeneous solid solution in the (0.7BF-0.3BT)-x(0.93NBT-0.07BT) ceramics, still within the MPB region. This study provides a new approach for the application of BF-BT ceramics in high-temperature piezoelectric devices.
CERAMICS INTERNATIONAL
(2023)
Article
Engineering, Electrical & Electronic
Jianzhou Du, Cong Yang, Yunping Li, Jingyi Yan, Long Qiu, Luming Wang, Kongjun Zhu
Summary: In this study, xPZN-PZT ternary piezoelectric ceramics with different PZN content were prepared using the solid-state reaction method. The effect of PZN content on the phase structure, dielectric, piezoelectric, and ferroelectric properties of the ceramics was investigated. The results showed that the increase in PZN content led to a slight increase in grain size. The 0.2PZN-PZT ceramic samples exhibited optimum properties at a high Curie temperature, indicating a balance between the Curie temperature and piezoelectric properties.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2023)
Article
Materials Science, Ceramics
Congcong Tian, Pengfei Wang, Yongchen Wang, Jiacheng Du, Jianguo Chen, Hui Zhao, Yan Wang, Jinrong Cheng
Summary: This research fabricates the piezoelectric ceramics of (0.9-x)BiFeO3xPbTiO3-0.1Ba(Zr0.5Ti0.5)O3 (BF-xPT-0.1BZT) and achieves ceramics with high Curie temperature and large piezoelectric constant. BF-0.31PT-0.1BZT ceramics possess excellent dielectric and piezoelectric properties, making them potential for high temperature piezoelectric applications.
CERAMICS INTERNATIONAL
(2023)
Article
Materials Science, Multidisciplinary
Neha, Richa Pandey, Manoj Bhatnagar, Parveen Kumar, Rajesh Kumar Malik, Chandra Prakash
Summary: Ceramic samples with a perovskite structure were prepared using the conventional solid state reaction method. The samples exhibited high dielectric constant and energy storage efficiency at room temperature.
Article
Chemistry, Physical
Dafu Zeng, Peng Nong, MingZhao Xu, Qinpeng Dong, Yue Pan, Xiang Wang, Jiaming Wang, Shiyu Yang, Huanfu Zhou, Xiuli Chen
Summary: In this study, the energy storage density of lead-free ceramic capacitors was optimized by doping with highly polarized Bi0.5Na0.5TiO3 and realizing the synergistic optimization of polarization and electric field breakdown strength. The 0.15BNT ceramics exhibited excellent total and recoverable energy storage density, high energy storage efficiency, and a high-power density, large discharge density, and ultrafast discharge time. Additionally, the 0.15BNT ceramics also showed excellent frequency and temperature stability. These properties make them promising candidates for applications.
JOURNAL OF POWER SOURCES
(2023)
Article
Materials Science, Ceramics
Bo Jia, Zengzhe Xi, Feifei Guo, Shaokun Zhang, Shasha Dong, Wei Long, Xiaojuan Li, Pinyang Fang, Zhonghua Dai
Summary: CuO-doped PSN-PMN-PT ceramics synthesized at low sintering temperature exhibit improved phase transition temperature and piezoelectric properties, making them promising candidates for multilayer piezoelectric devices and pyroelectric infrared detectors applications.
CERAMICS INTERNATIONAL
(2021)
Review
Materials Science, Multidisciplinary
Xuefan Zhou, Guoliang Xue, Hang Luo, Chris R. Bowen, Dou Zhang
Summary: This comprehensive review focuses on the development of lead-free sodium bismuth titanate (BNT) based ceramics, discussing their composition, microstructure, macroscopic properties, and potential applications in various fields. It also highlights the origin of macroscopic behavior, strategies for optimizing functional properties, and current challenges in this area, while introducing the potential applications of BNT-based ceramics in electrocaloric, oxide-ion conduction, and luminescence fields. Future perspectives and emerging research directions in this growing area are also provided.
PROGRESS IN MATERIALS SCIENCE
(2021)
Article
Materials Science, Multidisciplinary
Yi Quan, Lingyan Wang, Wei Ren, Jinyan Zhao, Jian Zhuang, Kun Zheng, Zhe Wang, Tomoaki Karaki, Zhishui Jiang, Li Wen
Summary: In this study, lead-free piezoelectric ceramics modified with Sm3+ were successfully prepared with enhanced piezoelectric properties and high thermal stability. The introduction of Sm3+ significantly improved the piezoelectric properties, with optimal performance achieved at 0.3% mol Sm3+ modification.
FRONTIERS IN MATERIALS
(2021)
Article
Chemistry, Inorganic & Nuclear
Muhammad Aamir, Salman Ali Khan, Tauseef Ahmed, Ali Hussain, Soonil Lee
Summary: The effects of Y3+ substitution on the crystal structure, microstructure, and electrical properties of BYNT-6BT ceramics were investigated. Y3+ substitution improved the ferroelectric and piezoelectric properties, reduced the relative permittivity, and expanded the temperature stability. Optimal composition (x = 0.05) exhibited excellent dielectric properties with low dielectric loss and stable behavior over a wide temperature range.
SOLID STATE SCIENCES
(2023)
Article
Materials Science, Multidisciplinary
Thomas Schulz, Vignaswaran Veerapandiyan, Marco Deluca, Joerg Toepfer
Summary: Bulk ceramic samples of the perovskite series were prepared using the conventional solid-state route, with careful characterization of Bi2O3 raw materials being essential. X-ray diffraction analysis revealed the formation of perovskite main phase, and samples with higher CaZrO3 fraction showed a flattening of permittivity-temperature curves along with low dielectric losses.Samples with x = 0.2 exhibited a temperature stable permittivity of epsilon(r) approximate to 600 with small dielectric losses, qualifying them as suitable high temperature capacitor dielectric materials.
MATERIALS RESEARCH BULLETIN
(2022)
Article
Biotechnology & Applied Microbiology
Feng Guan, Bo Shi, Jingyun Zhang, Xinjian Wan
Summary: By analyzing gene expression data at multiple time points and comparing resistant and susceptible varieties, this study identifies differentially expressed genes associated with Fusarium wilt in bitter gourd. Further analysis reveals upregulated genes involved in phenylpropanoid biosynthesis, plant-pathogen interaction, and mitogen-activated protein kinase signaling pathway. The resistant variety exhibits earlier formation of tyloses to prevent fungal spread, and shows higher enzymatic activities and levels of oxidative stress markers compared to the susceptible variety upon Fusarium wilt infection. This study provides insights into the disease resistance mechanism in bitter gourd.
Article
Polymer Science
Fuping Xu, Yu Feng, Guang Liu, Changhai Zhang, Changming Li, Qingguo Chen, Qingguo Chi
Summary: The serious deterioration of energy density of polymer energy storage dielectrics in high temperature environment is a major obstacle to the application of dielectric film capacitors in electrical and electronic engineering. This study proposes a simple and low-cost method to grow inorganic polar functional layer on the surface of polymer film, which significantly improves the polarization characteristics and energy storage density of the dielectric at high temperature. The in situ growth of Ti(OH)(4) functional layer on the surface of polyetherimide (PEI) film achieves a high energy storage density of 4.59 J/cm(2) at 150 degrees C and 600 MV/m.
JOURNAL OF APPLIED POLYMER SCIENCE
(2023)
Article
Engineering, Electrical & Electronic
Chunbiao Wang, Yu Feng, Changhai Zhang, Tiandong Zhang, Qingguo Chi, Qingguo Chen, Qingquan Lei
Summary: By introducing polyhedral oligomeric silsesquioxanes (POSS) into epoxy, composites with improved high temperature resistance and insulation are prepared. The composite with a filling content of 2.5% exhibits the highest dipole relaxation activation energy value and the lowest dielectric constant and loss. Trap energy and density are tested and calculated, with the deepest traps introduced in the 1% POSS composite. The composites show similar trends in DC breakdown strength, DC conductivity, and space charge dynamics.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2023)
Article
Materials Science, Multidisciplinary
Hailong Shi, Weimin Gan, Claude Esling, Yudong Zhang, Xiaojun Wang, Emad Maawad, Andreas Stark, Xiaohu Li, Lidong Wang
Summary: In this study, the orientation evolution of cold-rolled Cu foils during heating was investigated, and the results showed a transition from the cold-rolling texture to a recrystallization texture dominated by two rotated orientations. The formation of the recrystallization texture was influenced by both intrinsic microstructural factors and extrinsic geometrical factors. The post-nucleation growth was affected by the biaxial thermal elastic constraint and surface energy, resulting in a mixed texture at the completion of recrystallization. The coherent Sigma 3 boundaries stabilized the growth of the new components.
MATERIALS CHARACTERIZATION
(2023)
Article
Materials Science, Multidisciplinary
Mengjia Feng, Yu Feng, Changhai Zhang, Tiandong Zhang, Xu Tong, Qiang Gao, Qingguo Chen, Qingguo Chi
Summary: Optimizing the high-temperature energy storage characteristics of energy storage dielectrics is important for the development of pulsed power devices and power control systems. Selecting a polymer with a higher glass transition temperature (T-g) and combining it with other polymers can improve the high-temperature breakdown strength and energy storage efficiency. The novel high-T-g polymer fiber-reinforced microstructure, with polyimide fibers distributed in the composite dielectric, shows excellent high-temperature energy storage properties.
ENERGY & ENVIRONMENTAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Chang Gao, Weili Li, Lu Jing, Zhao Wang, Lei Shi, Jie Sheng, Lidong Wang, Yu Zhao, Weidong Fei
Summary: Enhanced photovoltaic effect is achieved in the films with nanostructure of ferroelectric nanocrystalline particles embedded in amorphous or poor crystalline matrix. The designed ZCFLO photoferroelectrics films exhibit high efficiency photovoltaic effect with above-bandgap photovoltage, improved fill factor (83.4%), switchable photoresponse (50.3 mA W-1), and high power conversion efficiency (14.4%).
ADVANCED FUNCTIONAL MATERIALS
(2023)
Review
Chemistry, Multidisciplinary
Dong Yue, Jing-Hua Yin, Wen-Chao Zhang, Xiao-Xing Cheng, Mao-Hua Zhang, Jian-Jun Wang, Yu Feng
Summary: The breakthrough of energy storage technology allows for revolutionary energy generation through distribution and adaptation across space-time. This review article summarizes the application of computational simulation technologies in energy-storage polymer dielectrics, highlighting the effects of control variables and design structures on material properties, especially dielectric breakdown and energy storage performance. The article reviews the prediction and evaluation of material properties using various data analysis methods and discusses the outlook and challenges based on current developments. It provides an overview of the state-of-the-art advances in breakdown modeling in energy-storage polymer dielectrics and presents prospects for synthesizing high energy-storage polymer dielectrics through computational simulation.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Materials Science, Characterization & Testing
Wenchao Zhang, Min Jiang, Feng Guan, Shiyu Liu, Liangjun Wang, Yanpeng Li, Dong Yue, Jialong Li, Xiaoxu Liu, Yu Feng
Summary: In this study, high-temperature sintering was used to substitue Al3+ for Si4+ in SiO2 to create hole traps, resulting in acceptor-doped fillers Si1-0.75xAlxO2 (SA (x mol%)). Polyimide (PI) dielectric materials containing these SA fillers with different contents were synthesized through in-situ polymerization. The hole traps in the fillers modulated the electrical behavior of the polymer dielectric, significantly increasing the dielectric constant and breakdown strength by modulating the polarization behavior and capture carriers. The dielectric constant of the 1.25 vol% SA (1.5 mol%)/PI composite reached 3.60 at 1 Hz, while the breakdown strength E-b reached 581.5 kV/mm. This work provides a new synthesis strategy for achieving high insulation and high polarization in polymer dielectrics simultaneously.
Article
Chemistry, Physical
Wenchao Zhang, Liangjun Wang, Shiyu Liu, Feng Guan, Min Jiang, Yanpeng Li, Dong Yue, Jialong Li, Xiaoxu Liu, Yu Feng
Summary: In this study, Nb2O5 donor doped SiO2 (NSO) particles were successfully synthesized and doped into the PI matrix using high-temperature sintering method. The resulting composite material exhibited a maximum breakdown electric field strength (Eb) of 527.3 kV/mm, which is 64.2% higher than pure PI and 34.8% higher than SiO2/PI composite material. Additionally, the composite material demonstrated excellent dielectric stability and lower dielectric loss even at 100 celcius, offering a promising solution for enhancing the integrated dielectric properties of polymer dielectrics in insulation fields.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Physical
Ziyue Yang, Fan Deng, Zhang Tao, Shuai Yan, Heng Ma, Miao Qian, Wei He, Zhifeng Zhang, Yanqiang Liu, Lidong Wang
Summary: In this study, graphene/Cu composites were prepared using an in situ growth method and rolling treatment. The effects of rolling deformation and temperature on the microstructural evolution, mechanical and electrical properties were investigated. The cold-rolled composite with 85% deformation exhibited high strength, ductility and electrical conductivity due to oriented graphene arrangement and matrix grain refinement.
Article
Chemistry, Multidisciplinary
Jialong Li, Xiaoxu Liu, Bingshun Huang, Dongyang Chen, Zhaoru Chen, Yanpeng Li, Yu Feng, Jinghua Yin, Haozhe Yi, Taoqi Li
Summary: A dynamic multisite bonding network is constructed to address the contradiction between breakdown strength and polarization of polymer-based composites at high temperatures by connecting the -NH2 groups of polyetherimide (PEI) and Zn2+ in metal-organic frameworks (MOFs). The composites exhibit high breakdown strength of 588.1 MV m(-1) at 150°C, 85.2% higher than that of PEI, due to the dynamically stable multisite bonding network. The composites also demonstrate higher energy storage density and cycling stability at high temperatures, with the ability to generate extra polarization through thermal activation of the multisite bonding network.
MATERIALS HORIZONS
(2023)
Article
Chemistry, Multidisciplinary
Dong Yue, Wenchao Zhang, Puzhen Wang, Yong Zhang, Yu Teng, Jinghua Yin, Yu Feng
Summary: The high electric field resistance and energy storage capacity of polymer dielectrics can be enhanced by using a promising polymer polyetherimide (PEI) as a matrix and boron nitride nanosheets (BNNSs) as a reinforcing filler. The use of topological gradient structures can improve the performance of the composite dielectrics, with the asymmetric gradient structure design strategy showing great promise for optimizing the energy storage capacity. The asymmetric gradient structure composite dielectric achieved high energy densities at room temperature and high temperature due to its ability to inhibit carrier injection and transport simultaneously.
MATERIALS HORIZONS
(2023)
Article
Chemistry, Multidisciplinary
Yu Cheng, Yu Feng, Zhongbin Pan, Peng Wang, Jinjun Liu, Liang Liang, Jinhong Yu, Jiwei Zhai, Qing Wang
Summary: Extensive research has been conducted to enhance the capacitive energy storage capability of dielectric polymers. By designing multilayered polymer nanocomposites with ultralow loadings of nanofillers, a remarkable improvement in capacitive performance has been achieved, providing new opportunities for the development of high-energy-density capacitors.
ENERGY & ENVIRONMENTAL SCIENCE
(2023)
Article
Materials Science, Multidisciplinary
Guang Liu, Qingquan Lei, Yu Feng, Changhai Zhang, Tiandong Zhang, Qingguo Chen, Qingguo Chi
Summary: In this study, a polycarbonate-based energy storage dielectric with BN/SiO2 heterojunctions was designed to improve the insulation performance at high temperatures. The composite film showed excellent high-temperature energy storage properties, with the ability to withstand high electric field intensity even at 150 degrees C.
Article
Chemistry, Physical
Yanan Shang, Yu Feng, Changhai Zhang, Tiandong Zhang, Qingquan Lei, Qingguo Chi
Summary: This paper presents a new structural design philosophy for energy storage composite dielectrics with high insulation and polarization. By optimizing the blend and using two functional fillers, two gradient structures were designed to explore their effect on the breakdown, dielectric, and energy storage performance. The experimental results show that the composite with both fillers in positive gradient distribution achieves high discharge energy density and charge-discharge efficiency.
JOURNAL OF MATERIALS CHEMISTRY A
(2022)
