Thermal Spray Coatings for Electromagnetic Wave Absorption and Interference Shielding: A Review and Future ChallengesShow others and affiliations
2022 (English)In: Advanced Engineering Materials, ISSN 1438-1656, E-ISSN 1527-2648Article in journal (Refereed) Published
Abstract [en]
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.
Place, publisher, year, edition, pages
John Wiley & Sons, 2022.
Keywords [en]
Dielectric losses; Electromagnetic shielding; Electromagnetic wave absorption; Magnetic permeability; Millimeter waves; Diverse applications; Electromagnetic properties; Future challenges; Interference shielding; Low-observable; Photo-catalytic; Thermal barrier; Thermal spray coatings; Thermally sprayed coatings; Wave shielding; Dielectric materials
National Category
Manufacturing, Surface and Joining Technology
Research subject
Production Technology
Identifiers
URN: urn:nbn:se:hv:diva-18300DOI: 10.1002/adem.202200171ISI: 000776924800001Scopus ID: 2-s2.0-85127375010OAI: oai:DiVA.org:hv-18300DiVA, id: diva2:1670192
Note
This work was supported by the Pump Priming funding at Robert Gordon University, Aberdeen (project ID: 232073: Thermally sprayed metamaterial coatings for photovoltaic energy harvesting applications (#themetacoat)), in collaboration with University of Nottingham, Cranfield University, London South Bank University, and University of Exeter. S.G. and N.K. are thankful for the funding support received from the UKRI (grant (s) nos. EP/L016567/1, EP/S013652/1, EP/S036180/1, EP/T001100/1, and EP/T024607/1), Transforming the Foundation Industries NetworkPlus Feasibility study award to L.S.B.U. (EP/V026402/1), the Royal Academy of Engineering via grants IAPP18-19\295 and TSP1332, The Hubert Curien Partnership award 2022 from the British Council, and the Newton Fellowship award from the Royal Society (NIF\R1\191571). This work made use of Isambard Bristol, UK supercomputing service, accessed by Resource Allocation Panel (RAP) grant, as well as ARCHER2 resources (Project e648). W.W. is also thankful to the research support provided by the UKRI grant no. EP/S030301/1 (ANISAT).
2022-06-152022-06-152024-04-12