Volume 139, Issue 16 51981
ARTICLE

Data-driven methodology to realize strong and broadband microwave absorption properties of polymer-fly ash cenosphere composite

Pritom J. Bora

Corresponding Author

Pritom J. Bora

Interdisciplinary Centre for Energy Research (ICER), Indian Institute of Science (IISc), Bangalore, India

Department of Materials Engineering, Indian Institute of Science (IISc), Bangalore, India

Correspondence

Pritom J. Bora and Praveen C. Ramamurthy, Interdisciplinary Centre for Energy Research (ICER), Indian Institute of Science (IISc), Bangalore 560012, India.

Email: [email protected] (P. J. B.) and [email protected] (P. C. R.)

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Bibhusita Mahanta

Bibhusita Mahanta

Department of Materials Engineering, Indian Institute of Science (IISc), Bangalore, India

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Kishore

Kishore

Department of Materials Engineering, Indian Institute of Science (IISc), Bangalore, India

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Praveen C. Ramamurthy

Corresponding Author

Praveen C. Ramamurthy

Interdisciplinary Centre for Energy Research (ICER), Indian Institute of Science (IISc), Bangalore, India

Department of Materials Engineering, Indian Institute of Science (IISc), Bangalore, India

Correspondence

Pritom J. Bora and Praveen C. Ramamurthy, Interdisciplinary Centre for Energy Research (ICER), Indian Institute of Science (IISc), Bangalore 560012, India.

Email: [email protected] (P. J. B.) and [email protected] (P. C. R.)

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First published: 03 December 2021
Citations: 5

Funding information: Aeronautics Research and Development Board, Grant/Award Number: ARDB/01/2031900/M/I

Abstract

A very efficient microwave absorption characteristic of conducting polymer (polyaniline or PANI) incorporated fly ash cenosphere (FAC), which is a waste of thermal power plant, is revealed in this work with materials data-driven approach. The different loading (wt%) of PANI-FAC hybrids to a polymer such as polyvinyl butyral (PVB) results in different reflection loss (RL). However, RL performances do not improve by simply increasing the PANI-FAC hybrid loading (wt%) to PVB. Herein, PANI-FAC loading to PVB is optimized through the electromagnetic data-driven methodology. A remarkable RL ≤ − 40 dB with entire X-band (8.2–12.4 GHz) absorption bandwidth (RL ≤ −10 dB, RL value −10 dB corresponds to 90% absorption) is predicted for 8.5 wt% PANI-FAC hybrid loaded PVB-PANI-FAC composite. The predicted RL matched with experimental data (minimum RL value −44.5 dB with X-band absorption bandwidth), confirming the proposed proof of concept of data-driven methodology to obtain broadband and robust microwave absorption characteristics of polymer-FAC composites.

DATA AVAILABILITY STATEMENT

Data available on request from the authors.

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