Cure behaviour and mechanical properties of Si3N4 ceramics with bimodal particle size distribution prepared using digital light processing
Cure behaviour and mechanical properties of Si3N4 ceramics with bimodal particle size distribution prepared using digital light processing
复制标题
DOI：
10.1016/j.ceramint.2022.12.068
复制
发表时间：
2023-03-07
影响因子：
5.2
通讯作者：
Wu, Shanghua
中科院分区：
文献类型：
--
作者：
Huang, Shengwu;Li, Yanhui;Wu, Shanghua
数字光处理是用于制造陶瓷零件的重要增材制造技术。陶瓷悬浮液的粒径分布显着影响陶瓷的固化行为和机械性能。在本研究中，研究了具有双峰粒度分布的 Si3N4 陶瓷的固化行为和机械性能。结果表明，粗颗粒悬浮液的固化深度较高，吸光度较低，但机械性能较差。最佳配比（粗:细颗粒=3:7）的样品的弯曲强度达到最大值728.7+/-10.33 MPa，比仅使用细颗粒制备的样品高16.5%。
Digital light processing is a vital additive manufacturing technology used for manufacturing ceramic parts. The particle size distribution of ceramic suspensions significantly affects the cure behaviour and mechanical prop-erties of ceramics. In this study, the cure behaviour and mechanical properties of Si3N4 ceramics with a bimodal particle size distribution were studied. The results indicated that the suspension with coarse particles had a higher cure depth for a lower absorbance but poor mechanical properties. The bending strength of the samples with the optimal ratio (coarse:fine particles = 3:7) reached a maximum of 728.7 +/- 10.33 MPa, which is 16.5% higher than that of the samples prepared using only fine particles.