Preparation of broadband transparent Si3N4-SiO2 ceramics by digital light processing (DLP) 3D printing technology
Preparation of broadband transparent Si3N4-SiO2 ceramics by digital light processing (DLP) 3D printing technology
复制标题
数字光处理（DLP）3D打印技术制备宽带透明Si3N4-SiO2陶瓷
DOI：
10.1016/j.jeurceramsoc.2021.04.045
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发表时间：
2021-04
影响因子：
5.7
通讯作者：
Li Shan
中科院分区：
文献类型：
--
作者：
Chen Rufei;Duan Wenyan;Wang Gong;Liu Bingshan;Zhao Yantong;Li Shan
Wave-transmitting materials are a kind of multi-functional materials that protect the normal operation of communication and guidance systems of spacecraft in harsh environments. In this paper, we fabricate a broadband microwave transparent Si3N4-SiO2composite ceramic with excellent performance through digital light processing (DLP) 3D printing technology. The influences of sintering temperature on the weight increase rate, density, dimensional shrinkage, phase composition, microstructure, bending strength and dielectric properties of Si3N4-SiO2ceramic were all systematically studied. The strength of Si3N4-SiO2ceramic sintered at 1350 ℃ was 77 ± 5 MPa. The relative permittivity of the ceramic is within the range of less than 4, and the loss tangent can be below 0.003. The 3D printed Si3N4-SiO2ceramic material exhibited excellent wave-transparent performance.
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通讯作者：
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