| OUYANG Yuzhou,CHEN Shuang,HUANG Yanfei,XING Zhiguo,GUO Weiling.Research Progress of Sodium Titanate Based Piezoelectric Material Preparation Technology[J],53(10):56-70 |
| Research Progress of Sodium Titanate Based Piezoelectric Material Preparation Technology |
| Received:May 29, 2023 Revised:March 14, 2024 |
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| DOI：10.16490/j.cnki.issn.1001-3660.2024.10.005 |
| KeyWord:lead-free ceramics sodium bismuth titanate preparation technology thermal spraying coating |
| Author | Institution |
| OUYANG Yuzhou |
School of Mechanical and Electrical Engineering, Jiangxi University of Technology, Jiangxi Ganzhou , China;National Key Laboratory for Remanufacturing, Academy of Army Armored Force, Beijing , China |
| CHEN Shuang |
School of Mechanical and Electrical Engineering, Jiangxi University of Technology, Jiangxi Ganzhou , China |
| HUANG Yanfei |
National Key Laboratory for Remanufacturing, Academy of Army Armored Force, Beijing , China |
| XING Zhiguo |
National Key Laboratory for Remanufacturing, Academy of Army Armored Force, Beijing , China |
| GUO Weiling |
National Key Laboratory for Remanufacturing, Academy of Army Armored Force, Beijing , China |
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| Abstract: |
| Sodium bismuth titanate (BNT) based piezoelectric ceramics have gained prominence in the field of piezoelectric materials due to their favorable electrical properties and high Curie temperature. The preparation of high-performance bismuth sodium titanate based piezoelectric ceramics is crucial for meeting diverse application requirements. The BNT piezoelectric ceramic materials are initially classified into block sintering, thin film, and coating types. An examination of recent sintering, thin film, and coating techniques objectively highlights the differences in BNT ceramics prepared through various methods. The current research status on different preparation technologies for piezoelectric ceramics is then discussed, shedding light on existing research gaps and providing innovative perspectives. The prospects for piezoelectric ceramics preparation technology are outlined, indicating future development directions for various techniques. The primary affecting factors in the sintering technology of BNT piezoelectric ceramics are identified as sintering temperature and time. Solid-state sintering, with its high temperature, poses challenges due to element volatilization, addressed by adding doping oxide combustion aids. However, the research in this area is limited to oxide addition, without exploring its impact on performance. Spark plasma sintering technology is noted for reducing nanodomain size and increasing its number, enhancing piezoelectric properties. Combining this with the powder preparation process is suggested to achieve nanoscale ceramics in the future. Microwave sintering, utilizing electric field self-heating, can produce ceramics with uniform size distribution and high density. However, the material-specific microwave absorption ability may lead to varying performance, necessitating further research. In the realm of BNT piezoelectric ceramic thin films, the Sol-gel method offers simplicity and material composition control. However, the film thickness control remains challenging, limiting its performance. Pulsed Laser Deposition is explored, where oxygen pressure, substrate temperature, and heat treatment affect thin film structure and performance. Optimization is crucial to address potential issues with molten particles and fragments. RF Magnetron Sputtering's control of annealing temperature and RF frequency affects grain size, density, and performance. This technology holds prospect for achieving controllable BNT thin film preparation, which is significant for new thin film materials. The focus of BNT coating research is on thermal spraying, boasting high efficiency and large-area preparation. Challenges include part-wise sintering difficulties and film performance affected by thickness. BNT piezoelectric ceramics, combining lead-free properties with thermal spraying, may find applications in advanced intelligent systems and monitoring systems for sensors and transducers. Future research should leverage simulation and experimental methods to delve into the forming mechanisms of piezoelectric ceramics in different preparation technologies and explore avenues for performance improvement, thereby advancing piezoelectric ceramics preparation technology. |
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