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Amorphous Carbon Regulates Defects to Achieve TaC Nanowires with Enhanced Microwave Absorption.
- Source :
- ACS Applied Nano Materials; 1/12/2024, Vol. 7 Issue 1, p1357-1368, 12p
- Publication Year :
- 2024
-
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<subscript>nws</subscript>) 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<subscript>nws</subscript>/C sample exhibits exceptional EWA performance, achieving a minimum reflection loss (RL<subscript>min</subscript>) 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. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 25740970
- Volume :
- 7
- Issue :
- 1
- Database :
- Complementary Index
- Journal :
- ACS Applied Nano Materials
- Publication Type :
- Academic Journal
- Accession number :
- 174803279
- Full Text :
- https://doi.org/10.1021/acsanm.3c05486