A5024384778- Ferroelectric and Piezoelectric Materials
- Multiferroics and related materials
- Acoustic Wave Resonator Technologies
- Dielectric materials and actuators
- Microwave Dielectric Ceramics Synthesis
- Dielectric properties of ceramics
- Luminescence Properties of Advanced Materials
- Advanced ceramic materials synthesis
- Numerical methods in engineering
- Radiation Detection and Scintillator Technologies
- Gas Sensing Nanomaterials and Sensors
- Innovative concrete reinforcement materials
- Nanomaterials and Printing Technologies
- ZnO doping and properties
- Glass properties and applications
- Material Properties and Processing
- Nanofabrication and Lithography Techniques
- Analytical Chemistry and Sensors
- Aerosol Filtration and Electrostatic Precipitation
- Advanced materials and composites
- Atomic and Subatomic Physics Research
- Electrochemical sensors and biosensors
- Structural Behavior of Reinforced Concrete
- Perovskite Materials and Applications
- Electronic and Structural Properties of Oxides
Guilin University of Electronic Technology
2020-2024
Guilin University of Technology
2024
Shanghai University
2022-2023
Institute of New Materials
2023
Research Institute of Highway
2023
Ministry of Transport
2023
University of Science and Technology Beijing
2018-2019
The significantly enhanced insulating and piezoelectric properties are obtained in 0.7BiFeO<sub>3</sub>–0.3BaTiO<sub>3</sub>ceramic by fine-tuning the calcination temperature.
Abstract BiFeO 3 ‐BaTiO ceramics are promising lead‐free piezoelectric due to their high properties and Curie temperature, but leakage current density makes the poling difficult. In this study, a decreased by three orders of magnitude was obtained in Bi 0.5 Na TiO (BNT) added 0.67BiFeO ‐0.33BaTiO (BF‐BT) ceramics. It found that largely improved insulating benefit from reduced oxygen vacancies weak reduction Fe 3+ 2+ as confirmed photoluminescence X‐ray photoelectron spectroscopy...
Morphotropic phase boundary (MPB) plays a key role in tuning piezoelectric responses of ferroelectric ceramics. Here, Bi0·5Na0·5TiO3 modified BiFeO3BaTiO3 ternary solid solutions 0.7BiFeO3-(0.3-x)BaTiO3-xBi0.5Na0·5TiO3 (referred to as BF-BT-xBNT, 0.00 ≤ x 0.04) were prepared for lead-free piezoelectrics. All the ceramics exhibit an MPB with coexisting rhombohedral (R) and tetragonal (T) phases, R/T ratio decreases upon increasing x. The increment BNT promotes grain growth, lowers leakage...
BiGaO3 doped BiFeO3–BaTiO3 ceramics were prepared by the traditional solid-phase synthesis process. The phase analysis, microstructure, piezoelectric, ferroelectric, dielectric properties, and thermal stability of 0.7BiFeO3-(0.3 − x)BaTiO3-xBiGaO3 (Abbreviated as BF–BT-xBG) investigated. results show that have rhombohedral (R) tetragonal (T) structures. Particle dimensions gradually get bigger with increase concentration, dense ceramic grains observed through SEM. Electrical properties...
The 0.93(Na0.5Bi0.5)1–xSmxTiO3-0.07BaTiO3 multifunctional ceramics were prepared by solid-phase reaction method. phase structure, microstructure, electrical and photoluminescent properties systematically studied. With increasing x, the undergoes transition from rhombohedral to tetragonal with some distortion, along a reduced grain size increased relative density. On other hand, Sm3+ doping enhances electric-field driven reversible domain size, reduces walls, thereby contributing improved...
Abstract One of the inherent disadvantages Bi 0.5 Na TiO 3 ‐based (BNT‐based) piezoceramics is that an increment depolarization temperature ( T d ) generally accompanied by a deterioration stability real‐time piezoelectric constant 33 ), which severely restricts practical applications materials. Herein, we propose new strategy to mitigate conflict between elevation and in BNT‐based ceramics via integrating pressure‐assisted sintering quenching process. By this strategy, not only increased...