Amorphous Carbon Regulates Defects to Achieve TaC Nanowires with Enhanced Microwave Absorption
Source abstract
Abstract
Carbon/carbon composite materials, as electromagnetic wave-absorbing (EWA) materials, have been widely studied due to their excellent impedance matching and high dielectric loss. In this work, we introduced amorphous carbon into the TaC nanowire (TaC nws ) matrix, effectively optimizing impedance matching. The inclusion of amorphous carbon introduces a substantial quantity of imperfections and interfaces, thereby promoting polarization. The multipolarization loss and magnetic loss mechanism generate electromagnetic synergistic loss effects, significantly improving the attenuation performance of EW. The TaC nws /C sample exhibits exceptional EWA performance, achieving a minimum reflection loss (RL min ) of −54.25 dB and an effective absorption bandwidth (EAB) of 3.6 GHz at a low thickness of merely 1.4 mm. This study presents a novel methodology for the future fabrication of TMC composite materials, thereby holding substantial research implications.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Electromagnetic wave absorption materials · Advanced Antenna and Metasurface Technologies
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Henan Key Laboratory of Aeronautical Materials and Application Technology, School of Material Science and Engineering, Zhengzhou University of Aeronautics, Zhengzhou, Henan 450046, P. R. China
School of Microelectronics, Fudan University, Shanghai 200433, P. R. China
Funding
Natural Science Foundation of Henan Province · Henan Province Science and Technology Innovation Talent Program · Henan Province Foundation for University Key Teacher · National Natural Science Foundation of China · Henan Provincial Science and Technology Research Project · Zhengzhou University of Aeronautics · Henan Key Laboratory of Aeronautical Materials and Application Technology, Zhengzhou University of Aeronautics · Henan Higher Education Teaching Reform Research and Practice Project
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