Direct ink writing of continuous SiO2 fiber reinforced wave-transparent ceramics
Direct ink writing of continuous SiO2 fiber reinforced wave-transparent ceramics
复制标题
DOI：
10.1007/s40145-020-0380-y
复制
发表时间：
2020-05
影响因子：
16.9
通讯作者：
Zhe Zhao;Guoxiang Zhou;Zhihua Yang;Xianqi Cao;D. Jia;Yu Zhou
中科院分区：
文献类型：
--
作者：
Zhe Zhao;Guoxiang Zhou;Zhihua Yang;Xianqi Cao;D. Jia;Yu Zhou
本文报道了第一个3D打印连续二氧化硅纤维增强透波陶瓷复合材料的例子，采用直接墨水写入技术来改善陶瓷的力学和介电性能。添加纳米二氧化硅粉末后，陶瓷油墨表现出良好的印刷性能。通过有限元模拟对同轴针结构进行设计和优化，实现了有效的连续纤维增强印花工艺。印刷后，连续纤维均匀连续地分布在基陶瓷中，保持了纤维增强复合材料较高的成型精度。结果表明，加入10%的连续二氧化硅纤维后，陶瓷的抗弯强度提高了约27%，介电性能也得到了很大的改善。这种新的方法揭示了连续纤维增强透波陶瓷的直接墨水写入的潜力，该陶瓷具有复杂的结构和改善的性能。
This article reports the first example of 3D printed continuous SiO2fiber reinforced wave-transparent ceramic composites via an adaptation of direct ink writing technology to improve the mechanical and dielectric properties of ceramics. The ceramic inks showed good printability by adding nano-SiO2powder. The effective continuous fiber-reinforced printing progress was achieved through the design and optimization of the coaxial needle structures by finite element simulation. After printing, the continuous fibers were evenly and continuously distributed in the matrix ceramics and the high molding precision for fiber reinforced composite was kept. It is demonstrated that 10 vol% continuous SiO2fiber improved the bending strength of ceramics by about 27% better than that of the ceramics without fiber and the dielectric performance has also been greatly improved. The novel method unravels the potential of direct ink writing of continuous fiber reinforced wave-transparent ceramics with complex structures and improved properties.