航空材料学报2025，Vol.45Issue(4)：14-26,13.DOI:10.11868/j.issn.1005-5053.2025.000036
光固化3D打印前驱体转化SiCN陶瓷吸波材料
Photocuring 3D printing of SiCN ceramic-based microwave absorbing materials
摘要
Abstract
With the rapid advancement of modern electronic and communication technologies,there is an increasing demand for high-performance electromagnetic wave(EMW)absorbing materials.Materials that combine lightweight properties,high-temperature resistance,and broadband absorption capabilities have become a growing research hotspot.This work proposes a novel strategy for fabricating ceramic metamaterials based on ultraviolet(UV)-curable hyperbranched polysilazane(UV-PSN)precursors.By introducing photosensitive groups into the ceramic precursor monomers and utilizing digital light processing(DLP)3D printing technology,the synergistic regulation of microstructure and macroscopic morphology is successfully achieved.The fabricated SiCN ceramic metamaterials not only exhibit high-temperature resistance up to 1400℃and tunable dielectric properties but also demonstrate excellent manufacturing precision.In addition,the unique hollow structure design significantly enhances the impedance matching performance of the overall SiCN ceramic material,achieving an effective absorption bandwidth of 3.4 GHz in the X-band.Furthermore,the overall weight of the SiCN ceramic metamaterials is reduced by 79.6%compared to solid structures.This study provides new design concepts and technical pathways for developing multifunctional EMW absorbing materials suitable for extreme environments.关键词
吸波超材料/前驱体转化陶瓷/陶瓷超材料/光固化3D打印陶瓷/3D打印超材料Key words
microwave-absorbing metamaterials/polymer-derived ceramics/ceramic metamaterials/photocurable-3D printed ceramics/3D-printed metamaterials分类
航空航天引用本文复制引用
李鹏举,郭晨悦,邢瑞哲,徐国璇,刘永胜,刘烨锟,周睿,梁瑾,孔杰..光固化3D打印前驱体转化SiCN陶瓷吸波材料[J].航空材料学报,2025,45(4):14-26,13.基金项目
国家自然科学基金(52025034,52473082,22205182) （52025034,52473082,22205182）
中央高校基本科研业务费新进教师启动经费项目(D5000240060) （D5000240060）
