Development of Ba-hexaferrite coatings for electromagnetic wave absorption applications
| Autor: | Thomas Schlaefer, Markus Bruehl, Kirsten Bobzin, Arto Hujanen, Darja Lisjak, Massimo Pasquale, Tommi Varis, Ulla Kanerva, Giovanni Bolelli, Luca Lusvarghi, Pertti Lintunen, Marion Bégard |
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| Jazyk: | angličtina |
| Rok vydání: | 2010 |
| Předmět: |
Diffraction
APS spraying Materials science Analytical chemistry Ba-hexaferrite coatings Electromagnetic properties Vibrating sample magnetometer X-ray diffraction Micro-Raman spectroscopy symbols.namesake Materials Chemistry Absorption (electromagnetic radiation) Thermal spraying Deposition (law) Surfaces and Interfaces General Chemistry Condensed Matter Physics Surfaces Coatings and Films Chemical engineering Agglomerate X-ray crystallography symbols Raman spectroscopy Stoichiometry |
| Zdroj: | Bobzin, K, Schlaefer, T, Bégard, M, Bruehl, M, Bolelli, G, Lusvarghi, L, Lisjak, D, Hujanen, A, Lintunen, P, Kanerva, U, Varis, T & Pasquale, M 2010, ' Development of Ba-hexaferrite coatings for electromagnetic wave absorption applications ', Surface and Coatings Technology, vol. 205, no. 4, pp. 1015-1020 . https://doi.org/10.1016/j.surfcoat.2010.03.060 |
| ISSN: | 1879-3347 0257-8972 |
| Popis: | In this research, Ba-hexaferrite coatings for electromagnetic wave absorption applications were deposited by thermal spraying. A suitable powder feedstock was manufactured by blending a BaCO3 + Fe2O3 mixture, which was then agglomerated by spray-drying. The agglomerates were processed by air plasma spraying (APS) without any further treatment or were heat-treated and reactively-sintered to stoichiometric Ba-hexaferrite prior to spraying. As-sprayed coatings were analyzed by Raman spectroscopy and X-ray diffraction (XRD). Whereas the deposition of untreated agglomerates did not result in adequate amounts of crystalline Ba-hexaferrite in the coatings, the APS processing of reactively-sintered agglomerates led to a high content of Ba-hexaferrite and similar magnetic properties to those of Ba-hexaferrite bulk materials. |
| Databáze: | OpenAIRE |
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