Article
Chemistry, Physical
Fang Kang, Lixue Zhang, Liqiang He, Qinzhao Sun, Zepeng Wang, Ruirui Kang, Pu Mao, Congzhen Zhu, Jiping Wang
Summary: By doping with single Sb ion, this study successfully improved the microstructure and electromechanical performance of 0.67BiFeO(3)-0.33BaTiO(3) based ceramics. XRD and permittivity analysis revealed a mixed phase at the MPB, and Sb-doped samples exhibited large strain under low electric field.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Materials Science, Ceramics
Kai Liu, Weigang Ma, Fafu Liu, Hua Tan, Zhanming Dou, Chanatip Samart, Suwadee Kongparakul, Guangzu Zhang, Shenglin Jiang, Pengyuan Fan, Haibo Zhang
Summary: The study proposes a new approach to enhance the texturing effect of ceramics by integrating NBT-textured grains and NN-textured grains using dual templates. The sample achieves a significant increase in d*33 with preferred temperature stability, showing potential for lead-free piezoceramics with excellent properties.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2022)
Article
Materials Science, Multidisciplinary
Huajie Luo, Shiyu Tang, Zheng Sun, Yueyun Zhang, Yonghao Yao, Huashan Zheng, Jikun Yang, Yang Ren, Mingxue Tang, Houbing Huang, Hui Liu, Manuel Hinterstein, Jun Chen
Summary: In order to improve the thermal stability of Bi0.5Na0.5TiO3-based piezoelectrics, the researchers introduced Ag into BNT-6BT, forming BNT-6BT/100xAg composite ceramics. Experimental results show that when x=0.06, the depolarization temperature (Td) of the composite ceramics is improved to 145 degrees Celsius without compromising the piezoelectric response. This improvement is attributed to the synergistic effect of residual thermal stress, colossal grain size (above 200 μm), and oxygen vacancies. The study provides an effective method to enhance the thermal stability of BNT-based ceramics and can be applied to other systems as well.
Article
Chemistry, Multidisciplinary
Binquan Wang, Geng Huangfu, Jie Wang, Hua Li, Yiping Guo
Summary: An innovative strategy based on defect dipoles is proposed to achieve a giant piezoelectric strain coefficient in Li/Sr-doped (K0.5Na0.5)NbO3 lead-free piezoceramics. The enhanced strain performance is attributed to the optimized strain compatibility between the refined stripe domains and nanosized domains. Additionally, the material is able to recover from fatigue-induced strain depletion under the stimulation of bipolar electric fields, which can be explained by the rigid ion model.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Physical
Pengyuan Fan, Kai Liu, Weigang Ma, Hua Tan, Qi Zhang, Ling Zhang, Changrong Zhou, David Salamon, Shan-Tao Zhang, Yangjun Zhang, Bo Nan, Haibo Zhang
Summary: This review explores the evolution of high strain Na0.5Bi0.5TiO3-based lead-free piezoceramics and their multilayer actuators, discussing the origin of high strain, chemical modification methods, issues in ceramics for multilayer actuator applications, and strategies for optimizing strain performance. It systematically describes the characteristics, applications, and preparation process of multilayer actuators, as well as recent developments in Na0.5Bi0.5TiO3-based multilayer actuators, and presents perspectives on future work directions and promising fields for material and device applications.
JOURNAL OF MATERIOMICS
(2021)
Article
Chemistry, Multidisciplinary
Lixiang Lai, Bin Li, Shuo Tian, Zhihao Zhao, Shujun Zhang, Yejing Dai
Summary: A giant unipolar electrostrain of 1.6% is achieved in Sr/Nb-doped Bi-0.5(Na0.82K0.18)(0.5)TiO3 lead-free textured piezoceramics by defect dipole design, which is comparable to or even higher than state-of-the-art lead-based piezoelectric single crystals. The enhanced electrostrain is realized through reversible electric-field-induced phase transition, grain orientation engineering, and defect dipole engineering. This research provides a general strategy for designing piezoceramics with high electrostrain.
ADVANCED MATERIALS
(2023)
Article
Nanoscience & Nanotechnology
Yuvasree Purusothaman, Haoyang Leng, Aman Nanda, Ilan Levine, Shashank Priya
Summary: A lead-free piezoelectric ceramic based on (K,Na)NbO3 is textured using NaNbO3 seeds in the (001) direction, resulting in improved electromechanical coefficients at room temperature. The textured composition with 5 wt % NN template exhibits enhanced electromechanical coefficients and is used to fabricate a flexible piezoelectric energy harvester. The textured energy harvester outperforms the random ceramic-based harvester due to its higher figure-of-merit value.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Multidisciplinary
Binquan Wang, Geng Huangfu, Zhipeng Zheng, Yiping Guo
Summary: This study proposes a feasible strategy to enhance the strain performance and temperature stability of KNN-based piezoceramics by introducing V-K/Na'VO defect dipoles and constructing grain orientation. The textured ceramics exhibit a giant strain (1.35%) and a large converse piezoelectric coefficient (2700 pm V-1), outperforming most lead-free piezoceramics and even some single crystals. Furthermore, the strain deviation at high temperatures is significantly alleviated through texture engineering. A stack-type actuator fabricated from these ceramics demonstrates promising potential in precise positioning and optical modulation.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Trang An Duong, Mukhlishah Aisyah Devita, Hyoung-Su Han, Jae-Shin Lee
Summary: Lead-free composites synthesized using a conventional method exhibit high strain capability at low electric fields, making them highly competitive in practical applications.
Article
Materials Science, Multidisciplinary
Thi Hinh Dinh, Jae-Shin Lee
Summary: An investigation on ternary lead-free Na0.5Bi0.5TiO3-SrTiO3-ABO(3) piezoceramics reveals that the addition of ABO(3) affects the phase transition temperature and ferroelectric order of the materials. Microwave sintering method shows potential for creating lead-free piezoactuator materials with high performance.
Article
Engineering, Environmental
J. Sheng, W. P. Cao, W. L. Li, Q. R. Lin, M. L. Li, X. Hou, W. D. Fei
Summary: This study proposes an innovative design approach to enhance the strain response and reduce hysteresis in (Na0.5Bi0.5)TiO3 (NBT)-based ceramics by synergistically harnessing compositional and defect engineering. Utilizing designed defect dipoles, reversible domain switching and electric field-induced phase transitions were achieved, resulting in a giant strain and low hysteresis in the piezoelectric material.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Physics, Applied
Yi Quan, Lingyan Wang, Wei Ren, Jinyan Zhao, Jian Zhuang, Kun Zheng, Zhe Wang, Matthew Xinhu Ren, Tomoaki Karaki, Zhishui Jiang, Li Wen
Summary: Textured processing is an effective way to enhance the performance of lead-free piezoelectric ceramics. By adding a proper amount of templates, improved piezoelectric properties and thermal stability can be achieved.
JOURNAL OF APPLIED PHYSICS
(2022)
Article
Chemistry, Physical
Na Wu, Dongfang Pang, Xiang He, Tongxiang Liang
Summary: Ternary lead-free piezoelectric ceramics Na0.5Bi0.5TiO3-BaTiO3-Sr(Ta0.5Al0.5)O-3 were successfully synthesized via conventional solid-phase synthesis, with stable perovskite structure achieved. The introduction of Sr(Ta0.5Al0.5)O-3 significantly affected the ferroelectric properties of the substrate Na0.5Bi0.5TiO3-BaTiO3 ceramics, transitioning it from a ferroelectric phase to an antiferroelectric-like phase. The 0.005SAT composition exhibited high dielectric constant and electric-field strain coefficient.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Materials Science, Ceramics
Linghao Hou, Changrong Zhou, Qingning Li, Rui Li, Changlai Yuan, Jiwen Xu, Guanghui Rao
Summary: In this study, the relaxation temperature of BNT-6BT material was adjusted to near room temperature, resulting in high dynamic polar nanoregions and moderate polar spatial correlations. The material exhibited high strain and ultra-low hysteresis, as well as excellent temperature and frequency stability.
CERAMICS INTERNATIONAL
(2022)
Article
Materials Science, Ceramics
Haiyan Kuang, Xiang He, Vyunov Oleg, Shan Wu, Dongfang Pang
Summary: By doping with Pr element, the BNT-6BT ceramics exhibited composition-induced phase transition, enhanced grain growth, and improved piezoelectric and photoluminescence properties. This makes them competitive in actuators and multifunctional devices.
CERAMICS INTERNATIONAL
(2023)
Article
Engineering, Environmental
Qi Wang, Bing Xie, Qiuyu Zheng, Mohsin Ali Marwat, Zhiyong Liu, Pu Mao, Shenglin Jiang, Haibo Zhang
Summary: A new type of dielectric ceramic with higher recoverable-energy density at low electric field was reported. The optimized structure and composition of this ceramic resulted in higher polarization and favorable relaxation properties, as well as good stability at different frequencies and temperatures. This finding provides new guidance for fabricating low electric field dielectric energy storage ceramics.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Physical
Yunan Chen, Longyong Wu, Wei Jiang, Yihan Liu, Peng Li, Mingxue Xiang, Jincheng Chen, Youqing Zou, Bing Xie, Ping Zhang
Summary: This study proposes a novel in-situ synthesis strategy to construct functional three-dimensional graphene loaded with layered double oxide. The synthesized material exhibits outstanding purification ability and recycling performance, and the purification mechanisms are revealed and explained.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2023)
Article
Chemistry, Physical
Xian Cheng, Zhiyong Liu, Qinfang Jing, Pu Mao, Kun Guo, Jinshan Lu, Bing Xie, Huiqing Fan
Summary: Piezoelectricity is a highly functional property that has been widely studied in various applications, including piezoelectric catalysis and mechanical energy harvesting. In this work, (K0.5Na0.5)(0.94)Li0.06NbO3 (KNN6L) piezoelectric powders were combined with polydimethylsiloxane (PDMS) to develop flexible and recyclable KNN6L-PDMS porous piezoelectric composites. These composites demonstrated a degradation rate of approximately 91% for Rhodamine B dye wastewater under mechanical vibration, and the piezocatalytic activity remained excellent even after multiple decomposition cycles. Furthermore, COMSOL simulations confirmed the relationship between piezoelectric potential and piezocatalysis. The content of piezoelectric powders positively affected the magnitude of the generated piezoelectric potential. The catalytic mechanism was attributed to the generation of reactive oxygen species, such as center dot O-2(-) and center dot OH, in a water environment due to the strong piezoelectric effect of the porous composites. The flexible and recyclable porous piezoelectric composites exhibited outstanding performance in piezoelectric catalysis, which holds great promise for environmental remediation applications.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Chemistry, Analytical
Xiao Qin, Weizhi Huang, Xuefei Wang, Zezhi Tang, Zepeng Liu
Summary: This study proposes a new feature network dictionary to enlarge the number of candidate features under limited sensor conditions and contain as much useful information as possible. The sparse augmented Lagrangian feature selection method is then used to reduce the number of candidate features and select the most significant features. Finally, the selected features are input to the Gaussian Process Regression model for remaining useful life estimation. Extensive experiments demonstrate the superiority of this framework in cost savings, especially for online RUL estimation.
Article
Materials Science, Multidisciplinary
Yang Li, Zhengwei Wang, Minghao Shao, Zhehao Zhang, Chengxu Wang, Jiwen Yan, Jinpeng Lu, Lei Zhang, Bing Xie, Yongyong He, J. X. Qiu
Summary: In this study, electron beam melting (EBM) titanium alloy was strengthened by carrying out a hollow cathodic plasma source nitriding treatment. The microstructure and surface morphology of the samples were evaluated using various techniques. The corrosion resistance of the nitrided layer was explored through electrochemical measurements and its relationship with microstructure was established. The formation of a Ti-N layer with improved corrosion resistance provides opportunities for the application of commercial Ti alloys and improving their durability.
Article
Crystallography
Haojie Yue, Kailing Fang, Tiantian Chen, Qinfang Jing, Kun Guo, Zhiyong Liu, Bing Xie, Pu Mao, Jinshan Lu, Francis Eng Hock Tay, Ivan Tan, Kui Yao
Summary: The structural, electronic, and optical properties of pure and Ce-doped BaTiO3 were investigated based on first-principle calculation. The substitution of Ce for Ba and Ti sites in the material led to a reduction in the band gap and increased electrical conductivity. The theoretical calculation results provide a new idea for the theoretical study of the BaTiO3-based system.
Article
Nanoscience & Nanotechnology
Kai Liu, Weigang Ma, Ningyu Ben, Hai Zhu, Wenwei Xu, Huayun Gao, Chanatip Samart, Suwadee Kongparakul, Haibo Zhang, Hua Tan
Summary: The preparation of (001)-textured (Na0.5Bi0.5)0.935Ba0.065Ti0.978(Fe0.5Nb0.5)0.022O3 ceramics through liquid-phase-assisted templated grain growth (TGG) at a low sintering temperature (1000 degrees C) is described. The dissolution of NaNbO3 (NN) templates into oriented grains leads to a strong crystallographic anisotropic structure. The textured ceramic exhibits increased ionic disorder, resulting in highly dynamic polar nanoregions and a larger reversible phase transition.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Materials Science, Multidisciplinary
Kai Liu, Fafu Liu, Wu Zhang, Zhanming Dou, Weigang Ma, Chanatip Samart, Naohisa Takesue, Hua Tan, Pengyuan Fan, Zuo-Guang Ye, Haibo Zhang
Summary: (Na1/2Bi1/2)TiO3-based piezoelectric multilayer actuators (MLAs) have attracted attention as a replacement for lead-based piezoelectric devices due to environmental concerns. In this study, a grain orientation engineering approach was used to prepare a textured NBT-based MLA with high strain output and effective co-firing. The textured MLA achieved a high texturing degree and significantly higher strain performance compared to the non-textured counterpart. The effects of grain orientation engineering on mechanical properties and fracture behavior were analyzed.
Article
Engineering, Environmental
Chenxu Yu, Kai Liu, Jiwen Xu, Mao Ye, Tao Yang, Tianpeng Qi, Yiming Zhang, Huarui Xu, Haibo Zhang
Summary: This study presents the design and fabrication of a high-performance pressure sensor with a thermochromic function, consisting of a color-changing piezoelectric film and a piezoresistive layer. The thermochromic function is achieved through the reaction between a color-forming agent and developer in a temperature-dependent co-solvent. The sensor exhibits high sensitivity and response time due to the introduction of Bi0.5Na0.5TiO3 piezoelectric material and MXene for electrical conductivity. When applied to the human body and KN95 masks, the sensor demonstrates good sensitivity to measure human behavior, breath airflow, and daily speaking signals, making it suitable for wearable monitoring.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Materials Science, Ceramics
Yunyao Huang, Wenjing Shi, Ruiyi Jing, Nguyen-Minh-An Tran, Haibo Zhang, Vladimir Shur, Xiaoyong Wei, Li Jin
Summary: By incorporating a relaxor ferroelectric end member PZN into the PMN system, (1-x)PMN-xPZN solid solutions were created, resulting in an increased T-m and improved electrostrain properties. The x = 0.4 composition exhibited a maximum electrostrain of 0.134% and a piezoelectric coefficient d(33)(*) of 936 pm/V. The x = 0.5 composition showed a high electrostrain between 20 and 80 degrees C, making it suitable for precision displacement actuators.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2023)
Article
Automation & Control Systems
Zepeng Liu, Zi-Qiang Lang, Yun-Peng Zhu, Yufei Gui, Hatim Laalej, Jon Stammers
Summary: In this study, an innovative TCM approach based on sensor data modeling and model frequency analysis is proposed. This approach can realize autonomous cutting tool anomaly diagnosis by extracting the frequency-domain properties of the machining process and revealing cutting tool health conditions in real time.
IEEE TRANSACTIONS ON SYSTEMS MAN CYBERNETICS-SYSTEMS
(2023)
Article
Crystallography
Ya Lu, Haibo Zhang, Huabin Yang, Pengyuan Fan, Chanatip Samart, Naohisa Takesue, Hua Tan
Summary: Compared to batteries and electrochemical capacitors, dielectric capacitors are widely studied due to their advantages in terms of charging/discharging speed and power density. In this study, high-entropy (Bi0.2Na0.2Sr0.2Ba0.2Ca0.2)TiO3 lead-free relaxor-ferroelectric ceramics were prepared using both conventional sintering (CS) and spark plasma sintering (SPS). The SPS-prepared ceramics exhibited a high energy storage density of 6.66 J/cm(3) and a satisfactory energy storage efficiency of 77.2% under an electric field of 430 kV/cm, attributed to their high density, fine grains, number of oxygen vacancies, and composition uniformity. This study presents a new approach for preparing high-entropy dielectric energy storage ceramics with excellent energy storage properties.
Article
Materials Science, Multidisciplinary
Pu Mao, Congbin Zeng, Yongguang Guo, Gang Lu, Qingsong Yan, Zhiyong Liu, Bing Xie, Yingying Zhao, Kun Guo, Lixue Zhang
Summary: In this study, the electrical heterogeneity of CaCu3Ti4O12 (CCTO) ceramic was modulated through the introduction of nano ZnO. The CCTO-ZnO samples exhibited significantly enhanced dielectric and nonlinear properties, with a colossal dielectric constant of 104-105 at room temperature. The stability of dielectric constant in a wide frequency range and over a temperature scope was improved, and the x = 0.04 sample showed relatively lower room-temperature dielectric loss. Moreover, the breakdown field strength and nonlinear coefficient of CCTO-ZnO ceramics were improved, attributed to the tunable electrical heterogeneity according to the internal barrier layer capacitor (IBLC) model.
MATERIALS RESEARCH BULLETIN
(2023)
Article
Engineering, Electrical & Electronic
Yufei Gui, Zi-Qiang Lang, Zepeng Liu, Yunpeng Zhu, Hatim Laalej, David Curtis
Summary: During metal machining processes, the chipping or breakage of cutting tools can negatively impact finished surfaces, leading to quality issues and economic losses. Tool breakage detection (TBD) methods can help identify potential tool failures, shut down machine tools in a timely manner, and prevent quality degradation and high manufacturing costs. Existing TBD methods face challenges such as limited training data for supervised techniques and determining an appropriate threshold for unsupervised techniques. This study proposes an innovative unsupervised TBD approach based on data decomposition and analysis in the time and sensor domains, which shows promising effectiveness and potential for real-time cutting TBD based on experiments with multisensor data.
IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT
(2023)
Review
Materials Science, Ceramics
Xie Bing, Cai Jinxia, Wang Tongtong, Liu Zhiyong, Jiang Shenglin, Zhang Haibo
Summary: Film capacitors are essential electronic components in modern power devices and electronic equipment, but their energy storage capacity is limited due to low dielectric constant, resulting in large device size and high cost. To address this issue, the nanocomposite approach combining high dielectric constant ceramic nanoparticles with high breakdown strength polymer matrix has been proposed. However, the enhancement of dielectric constant and breakdown strength in the single-layer structure of polymer/ceramic composites is difficult to achieve simultaneously, limiting the improvement in energy storage density. To overcome this limitation, researchers have developed 2-2 type multilayer composite dielectrics by superposing composite films with high dielectric constant and high breakdown strength, enabling synergistic regulation of polarization strength and breakdown strength for high energy storage density. This paper reviews the research progress of multilayer polymer-based composite dielectrics, highlights the effect of multilayer structure control strategy on energy storage performance improvement, and summarizes the enhancement mechanisms of energy storage performance for polymer-based multilayer structure composite dielectrics. Finally, the challenges and development directions of multilayer composite dielectrics are discussed.
JOURNAL OF INORGANIC MATERIALS
(2023)
