06
2024
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08
Light-cured 3D printing high-precision, high-performance barium titanate piezoelectric ceramics
Author:
Industry new knowledge
Recently, a team led by Qi Ge of south university of science and technology of China published a study entitled High-precision BaTiO3 piezoelectric ceramics via vat photopolymerization 3D printing in the Journal of the European Ceramic Society,In this study, high-precision and high-performance BaTiO3 piezoelectric ceramic materials were successfully prepared by using digital light processing (DLP)3D printing technology.
Original link: https://www.sciencedirect.com/science/article/abs/pii/S095522192400579X
Adventure Technology official website: http://www.adventuretech.cn/
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research content
This research mainly solves the problem of how to use DLP technology to prepare ceramic materials with complex shapes and structures. By adjusting the composition of the slurry and the process parameters, the preparation of ceramic products of different shapes and structures can be realized. In addition, the effects of resin monomer type and solid content on the properties of the slurry were also discussed, which provided a reference for further optimization of the preparation process.
Article advantages
The study used digital light processing (DLP)3D printing technology to successfully prepare high-performance and high-precision BaTiO3 ceramics.
Through in-depth analysis of the influence of resin type and curing conditions in the composite slurry on its curing characteristics, the researchers determined the best 3D printing conditions and fabricated BaTiO3 ceramics with excellent properties and complex structure.
This study provides new ideas and technical means for the manufacture of BaTiO3 ceramics with high precision.
method innovation point
In this study, four kinds of photosensitive resin monomers with different structure and refractive index were selected to prepare the composite slurry, so as to analyze its influence on the curing behavior of the slurry in depth, which provides an important reference for optimizing the 3D printing process.
BaTiO3 ceramics with a relative density of 95% and a piezoelectric constant of 201 pC/N were successfully prepared by a two-step argon/air sintering method.
The researchers also used DLP 3D printing technology to successfully fabricate a series of BaTiO3 ceramics with three-dimensional continuous structure, demonstrating the ability to manufacture high-precision piezoelectric ceramic structures.
Figure 1, the rheological behavior of BaTiO3 and four kinds of photosensitive resin composite paste.
Figure 2, the TG-DSC curve and heat treatment process of the print blank. (a) First TG-DSC test run in an argon atmosphere. (B) Second TG-DSC test run in air atmosphere. (c) Degreasing process in argon. (d) Sintering process in air.
Figure 3, XRD patterns of BaTiO3 powder, printed BaTiO3 green body and BaTiO3 ceramics after sintering at different temperatures.
4, SEM image of BaTiO3 ceramics prepared by DLP 3D printing. (a) The blank after printing. (B) BaTiO3 ceramics after degreasing at 800 ° C. in an argon atmosphere. (c-e) BaTiO3 ceramics sintered at 1300 ° C. (c), 1310 ° C. (d) and 1320 ° C. (e) for 3 hours.
△ Figure 5, (a) linear shrinkage and (B) relative density and bulk density of BaTiO3 ceramics after sintering at different temperatures.
6, (a) dielectric temperature spectrum and (B) dielectric frequency spectrum of sintered BaTiO3 ceramic plate.
△ Figure 7, Characteristics of BaTiO3 ceramics prepared by DLP 3D printing.
8, barium titanate ceramics with TPMS structure prepared by DLP 3D printing technology and sintered.
research conclusion
This paper demonstrates the feasibility of preparing high-precision BaTiO3 piezoelectric ceramics by DLP technology. The optimized composite slurry and printing parameters significantly improve the performance and accuracy of ceramics, which provides a broad prospect for the practical application of piezoelectric elements. Future research should further optimize the ratio of raw materials, PBF-LB process parameters and post-treatment methods to further improve the performance and application potential of porous ceramic structures.
The above is our company through independent research and development of materials and equipment, produced a barium titanate with step three phononic crystal, not only with a high degree of customization, but also for teachers to do material and structure research and verification to provide a more efficient method.
The purpose of this article is to convey more information, such as the content of the work, copyright or other issues, please contact our company, we will delete the content in the first time!
About Adventure Technology:
Shenzhen Adventure Technology Co., Ltd. was established in 2015. It is a company engaged inUltra high speed ceramic additive manufacturing technologyHigh-tech companies.
The company has a research and development team with Tsinghua University, University of Science and Technology of China, Norwegian University of Science and Technology and other doctors at home and abroad as the main body, and is committed to providing customers with a complete"Ceramic 3D printing equipment Ceramic 3D printing materials Ceramic sintering processThe whole solution!
At present, the company has independently developed a series of light-curing ceramic 3D printing equipment, fine direct-writing ceramic 3D, 4D printing equipment, biological direct-writing ceramic 3D printing equipment and related ceramic 3D printing materials, it has served 100 top scientific research institutes in the world, including Tsinghua University, Harbin Institute of Technology, University of Science and Technology Beijing, Beijing Institute of Technology, Northwestern Polytechnical University, Sichuan University, National University of Defense Technology, Shenzhen University, Chinese Academy of Sciences, Yanzhiwu Silong Food, etc.
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