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Thermal Spray Coatings for Electromagnetic Wave Absorption and Interference Shielding: A Review and Future Challenges

Faisal, Nadimul Haque; Ahmed, Rehan; Sellami, Nazmi; Prathuru, Anil; Njuguna, James; Venturi, Federico; Hussain, Tanvir; Nezhad, Hamed Yazdani; Katiyar, Nirmal Kumar; Goel, Saurav; Upadhyaya, Hari; Joshi, Shrikant; Muhammad-Sukki, Firdaus; Prabhu, Radhakrishna; Mallick, Tapas; Whittow, Will; Kamnis, Spyros

Thermal Spray Coatings for Electromagnetic Wave Absorption and Interference Shielding: A Review and Future Challenges Thumbnail


Nadimul Haque Faisal

Rehan Ahmed

Nazmi Sellami

Anil Prathuru

James Njuguna

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Assistant Professor in Materials & Aerospace Engineering

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Professor of Coatings and Surface Engineering

Hamed Yazdani Nezhad

Nirmal Kumar Katiyar

Saurav Goel

Hari Upadhyaya

Shrikant Joshi

Firdaus Muhammad-Sukki

Radhakrishna Prabhu

Tapas Mallick

Will Whittow

Spyros Kamnis


This review aims to consolidate scattered literature on thermally sprayed coatings with nonionizing electromagnetic (EM) wave absorption and shielding over specific wavelengths potentially useful in diverse applications (e.g., microwave to millimeter wave, solar selective, photocatalytic, interference shielding, thermal barrier-heat/emissivity). Materials EM properties such as electric permittivity, magnetic permeability, electrical conductivity, and dielectric loss are critical due to which a material can respond to absorbed, reflected, transmitted, or may excite surface electromagnetic waves at frequencies typical of electromagnetic radiations. Thermal spraying is a standard industrial practice used for depositing coatings where the sprayed layer is formed by successive impact of fully or partially molten droplets/particles of a material exposed to high or moderate temperatures and velocities. However, as an emerging novel application of an existing thermal spray techniques, some special considerations are warranted for targeted development involving relevant characterization. Key potential research areas of development relating to material selection and coating fabrication strategies and their impact on existing practices in the field are identified. The study shows a research gap in the feedstock materials design and doping, and their complex selection covered by thermally sprayed coatings that can be critical to advancing applications exploiting their electromagnetic properties.

Journal Article Type Article
Acceptance Date Mar 25, 2022
Online Publication Date Mar 25, 2022
Publication Date 2022-07
Deposit Date Apr 7, 2022
Publicly Available Date Apr 8, 2022
Journal Advanced Engineering Materials
Print ISSN 1438-1656
Electronic ISSN 1527-2648
Publisher Wiley
Peer Reviewed Peer Reviewed
Volume 24
Issue 7
Article Number 2200171
Keywords Condensed Matter Physics; General Materials Science
Public URL
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