Controllable Interface and Defects in Carbon-Coated Flaky Carbonyl Iron via Laser Ablation for Multiband Microwave Absorption DOI
Pingan Yang, Yi‐Chen Yin,

Haibo Ruan

et al.

Industrial & Engineering Chemistry Research, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 28, 2025

The increasing demands of fifth-generation (5G) communication technology and radar low-frequency detection systems for wave absorption, combined with the complexity variability practical applications, present significant challenges in achieving effective S-band multiband electromagnetic absorption materials. In this study, we flaky carbonyl iron (FCI) tunable surface defects carbon materials to fabricate heterogeneous interfaces defective shells via laser ablation technology, resulting development carbon-coated core–shell composites (FCI@C) properties. Compared FCI, FCIC1 sample, which was coated a single shell, exhibited best performance, realized triband (S, X, Ku-band) absorption. bandwidth (EAB) reaches 3.92 GHz (2.4–3.04 GHz, 8.4–10.08 15.68–17.28 GHz) at 8.7 mm. Density functional theory is used reveal enhancement shell on interface polarization Fe–C interface. exceptional performance attributed synergistic effects multiple loss mechanisms, arise from defect sites within shell. This work presents novel approach developing absorbing capable simultaneously meeting application requirements across different frequency bands.

Language: Английский

Effect of Ni@YSZ-APP synergistic action on fire-retardancy, smoke-release and electromagnetic wave absorb of phenolic resin-epoxy resin composite coatings DOI

Kecheng Gu,

S.L. Yan, Ming Yan

et al.

Polymer, Journal Year: 2025, Volume and Issue: unknown, P. 128208 - 128208

Published: Feb. 1, 2025

Language: Английский

Citations

0
Controllable Interface and Defects in Carbon-Coated Flaky Carbonyl Iron via Laser Ablation for Multiband Microwave Absorption DOI
Pingan Yang, Yi‐Chen Yin,

Haibo Ruan

et al.

Industrial & Engineering Chemistry Research, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 28, 2025

The increasing demands of fifth-generation (5G) communication technology and radar low-frequency detection systems for wave absorption, combined with the complexity variability practical applications, present significant challenges in achieving effective S-band multiband electromagnetic absorption materials. In this study, we flaky carbonyl iron (FCI) tunable surface defects carbon materials to fabricate heterogeneous interfaces defective shells via laser ablation technology, resulting development carbon-coated core–shell composites (FCI@C) properties. Compared FCI, FCIC1 sample, which was coated a single shell, exhibited best performance, realized triband (S, X, Ku-band) absorption. bandwidth (EAB) reaches 3.92 GHz (2.4–3.04 GHz, 8.4–10.08 15.68–17.28 GHz) at 8.7 mm. Density functional theory is used reveal enhancement shell on interface polarization Fe–C interface. exceptional performance attributed synergistic effects multiple loss mechanisms, arise from defect sites within shell. This work presents novel approach developing absorbing capable simultaneously meeting application requirements across different frequency bands.

Language: Английский

Citations

0