TY  - EJOU
AU  - Wu, Jiamin 
AU  - Luo, Zhicong 
AU  - Zhou, Fulin 
AU  - Wang, Qiwen 
AU  - Li, Weikang 
AU  - Cai, Weihao 
AU  - Su, Sen 
AU  - Guo, Lin 
AU  - Ye, Chunsheng 
AU  - Shi, Yusheng 

TI  - Research on the Fabrication and Properties of Si<sub>3</sub>N<sub>4</sub> Ceramic Radomes via Vat Photopolymerization (VPP)
T2  - The International Conference on Computational \& Experimental Engineering and Sciences

PY  - 2025
VL  - 33
IS  - 4
SN  - 1933-2815

AB  - Silicon nitride (Si<sub>3</sub>N<sub>4</sub>) ceramics with outstanding comprehensive properties, have become important candidate materials for components like radomes and antenna windows. In this study, the vat photopolymerization (VPP) technique was used to fabricate Si<sub>3</sub>N<sub>4</sub> ceramic radomes. Our research centered on optimizing the curing properties of ceramic slurries and precisely regulating the comprehensive properties of the ceramics. Several methods were proposed to modify the curing depth of Si<sub>3</sub>N<sub>4</sub> ceramic slurry, including thermosetting resin coating, sintering aid coating, oxidation coating, double coating, etc. Moreover, a pore-forming agent modification method was also proposed, which enabled the VPP printing of Si<sub>3</sub>N<sub>4</sub> ceramic parts with well-controlled pore structure. Subsequently, the correlations among process parameters, microstructure, and the properties of Si<sub>3</sub>N<sub>4</sub> ceramics were successfully established. This research intended to offer a valuable reference for the further research and application of Si<sub>3</sub>N<sub>4</sub> ceramics in the radome field.
KW  - Vat photopolymerization (VPP); silicon nitride (Si<sub>3</sub>N<sub>4</sub>); coating modification; ceramic radomes

DO  - 10.32604/icces.2025.011860