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Journal of Advanced Ceramics

Authors

Xinli YE, International Laboratory for Insulation and Energy Efficiency Materials, College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 211106, China Suzhou Superlong Aviation Heat Resistance Material Technology Co., Ltd., Suzhou 215400, China
Zhaofeng CHEN, International Laboratory for Insulation and Energy Efficiency Materials, College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 211106, China
Sufen AI, Beijing Spacecrafts, China Academy of Space Technology, Beijing 100080, China
Bin HOU, Department of Reactor Engineering, China Institute of Atomic Energy, Beijing 102413, China
Junxiong ZHANG, International Laboratory for Insulation and Energy Efficiency Materials, College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 211106, China
Xiaohui LIANG, International Laboratory for Insulation and Energy Efficiency Materials, College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 211106, China
Qianbo ZHOU, International Laboratory for Insulation and Energy Efficiency Materials, College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 211106, China
Hezhou LIU, The State Key Lab of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai 200240, China
Sheng CUI, Jiangsu Collaborative Innovation Center for Advanced Inorganic Function Composites, Nanjing Tech University, Nanjing 211800, China

Keywords

three-dimensional SiC/melamine-derived carbon foam (3D-SiC/MDCF), chemical vapor deposition, coating structure, electromagnetic wave absorption characteristic, minimum reflection loss

Abstract

Porous three-dimensional SiC/melamine-derived carbon foam (3D-SiC/MDCF) composite with an original open pore structure was fabricated by the heat treatment of the commercial melamine foam (MF), carbonization of the stable MF, and chemical vapor deposition of the ultra-thin SiC coating. Scanning electron microscopy (SEM) and X-ray diffraction (XRD) were employed to detect the microstructure and morphology of the as-prepared composites. The results indicated that the 3D-SiC/MDCF composites with the coating structure were prepared successfully. The obtained minimum reflection loss was -29.50 dB when the frequency and absorption thickness were 11.36 GHz and 1.75 mm, respectively. Further, a novel strategy was put forward to state that the best microwave absorption property with a thin thickness of 1.65 mm was gained, where the minimum reflection loss was -24.51 dB and the frequency bandwidth was 3.08 GHz. The excellent electromagnetic wave absorption ability resulted from the specific cladding structure, which could change the raw dielectric property to acquire excellent impedance matching. This present work had a certain extend reference meaning for the potential applications of the lightweight wave absorption materials with target functionalities.

Publisher

Tsinghua University Press

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