Photopolymerization 3D Printing and Electromagnetic Absorption Performance of SiOC(Fe) Ceramics

doi:10.3901/JME.2024.23.377

Abstract

Abstract: This study focuses on the preparation of SiOC(Fe) composite ceramic absorber materials using a polymer precursor-based approach with vinyl-ferrocene as the iron source and employing photopolymerization-based 3D printing. Leveraging the high precision and diverse product shapes achievable through photopolymerization 3D printing, composite absorber ceramic materials with a specific lattice structure are synthesized. The study explores the influence of formulation composition on the electromagnetic absorption performance of the materials. Comprehensive analysis of the phase structure, microstructure, and absorption properties of the composite materials reveals that when VcFe is used as the iron source, the printed and heat-treated samples still contain amorphous carbon, indicating excellent high-temperature stability and oxidation resistance of the ceramic. After heat treatment, a certain amount of C and Fe₃C crystalline phases appear in the samples, suggesting a reaction between VcFe and SiOC during high-temperature pyrolysis, resulting in the formation of free carbon and Fe₃C. All samples exhibit soft magnetic characteristics, and within the frequency range of 10 to 18 GHz, the reflection loss values (R) for all samples fall between -10 and -20 dB, indicating absorption rates ranging from 90% to 99% for electromagnetic waves.

Key words: ceramic additive manufacturing, photopolymerization 3D printing, SiOC(Fe) ceramic, electromagnetic absorption

CLC Number:

TM911

LIN Xiao, LIU Zhiyuan, LIU Changyong, CHEN Zhangwei. Photopolymerization 3D Printing and Electromagnetic Absorption Performance of SiOC(Fe) Ceramics[J]. Journal of Mechanical Engineering, 2024, 60(23): 377-384.

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