Maximizing the microwave absorption performance of polypyrrole by data-driven discovery

Microwave-absorbing materials (MAMs) have played critical roles in many civil and military applications, such as coating materials on stealth fighters to avoid radar detections. The efficacy of MAMs is evaluated with the reflection loss (RL) and the bandwidth (Δf10, which refers to the band where ≥9...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:Composites science and technology 2020-10, Vol.199, p.108332, Article 108332
Hauptverfasser: Green, Michael, Tran, Anh Thi Van, Chen, Xiaobo
Format: Artikel
Sprache:eng
Schlagworte:
Online-Zugang:Volltext
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:Microwave-absorbing materials (MAMs) have played critical roles in many civil and military applications, such as coating materials on stealth fighters to avoid radar detections. The efficacy of MAMs is evaluated with the reflection loss (RL) and the bandwidth (Δf10, which refers to the band where ≥90% microwave irradiation is lost), along with the peak's position (fmax) and the thickness of the coating. Large RL and Δf10 are frequency targeted for optimized performance. In this study, we demonstrate a data-driven discovery approach to reveal the maximized RL and Δf10, using a polypyrrole/paraffin composite as an example, and found that record-setting RL of −62.6 dB and Δf10 of 7.7 GHz, are obtained, as the best values that have been reported for polypyrrole. We believe that this data-driven approach can be widely applied to other composite systems, to allow more exciting discoveries in the future. A data-driven approach is demonstrated to reveal the best microwave absorption performance of polypyrrole. [Display omitted]
ISSN:0266-3538
1879-1050
DOI:10.1016/j.compscitech.2020.108332