Zhang Dongcai, Yang Yaodong, Lv Xuhan, Rao Wei-Feng
School of Mechanical Engineering (Shandong Institute of Mechanical Design and Research), Qilu University of Technology (Shandong Academy of Sciences), Jinan, China.
3D Print Addit Manuf. 2024 Oct 22;11(5):e1877-e1886. doi: 10.1089/3dp.2023.0079. eCollection 2024 Oct.
Digital light processing is a recently developed solution to fabricate complex structured piezoelectric devices. To obtain a high-performance device, the slurry configuration, model slicing, and heat treatment methods during the printing should be carefully determined. In this article, 200 nm particle size barium titanate powders with an optimized solid content of 80% (mass fraction) were used to configure the slurry with higher printing efficiency. The slicing method with the printing direction perpendicular to the poling direction demonstrated higher piezoelectric performance. In addition, piezoelectric parts have a higher piezoelectric response and less deformation after sintering at 1450°C. After finding the above three important optimization parameters, a piezoelectric structure with high porosity was fabricated as an example to show that printed parts of 70% porosity still can keep a high piezoelectric response.
数字光处理是一种最近开发的用于制造复杂结构压电装置的解决方案。为了获得高性能的装置，在打印过程中的浆料配置、模型切片和热处理方法都应仔细确定。在本文中，使用粒径为200纳米、优化固体含量为80%（质量分数）的钛酸钡粉末来配置具有更高打印效率的浆料。打印方向垂直于极化方向的切片方法显示出更高的压电性能。此外，压电部件在1450°C烧结后具有更高的压电响应和更小的变形。在找到上述三个重要的优化参数后，以制造具有高孔隙率的压电结构为例，表明孔隙率为70%的打印部件仍能保持较高的压电响应。
