Development of Ba-hexaferrite coatings for electromagnetic wave absorption applications

K. Bobzin; T. Schlaefer; M. Bégard; M. Bruehl; G. Bolelli; L. Lusvarghi; D. Lisjak; Arto Hujanen; Pertti Lintunen; Ulla Kanerva; Tommi Varis; M. Pasquale

doi:10.1016/j.surfcoat.2010.03.060

Development of Ba-hexaferrite coatings for electromagnetic wave absorption applications

K. Bobzin, T. Schlaefer, M. Bégard, M. Bruehl (Corresponding Author), G. Bolelli, L. Lusvarghi, D. Lisjak, Arto Hujanen, Pertti Lintunen, Ulla Kanerva, Tommi Varis, M. Pasquale

Research output: Contribution to journal › Article › Scientific › peer-review

18 Citations (Scopus)

Abstract

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.

Original language	English
Pages (from-to)	1015-1020
Number of pages	6
Journal	Surface and Coatings Technology
Volume	205
Issue number	4
DOIs	https://doi.org/10.1016/j.surfcoat.2010.03.060
Publication status	Published - 2010
MoE publication type	A1 Journal article-refereed
Event	4th Workshop RIPT (Les Rencontres Internationales sur la Projection Thermique) - Lille, France Duration: 2 Dec 2009 → 4 Dec 2009

Keywords

APS spraying
Ba-hexaferrite coatings
Electromagnetic properties
Micro-Raman spectroscopy
Vibrating sample magnetometer
X-ray diffraction

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10.1016/j.surfcoat.2010.03.060

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title = "Development of Ba-hexaferrite coatings for electromagnetic wave absorption applications",

abstract = "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.",

keywords = "APS spraying, Ba-hexaferrite coatings, Electromagnetic properties, Micro-Raman spectroscopy, Vibrating sample magnetometer, X-ray diffraction",

author = "K. Bobzin and T. Schlaefer and M. B{\'e}gard and M. Bruehl and G. Bolelli and L. Lusvarghi and D. Lisjak and Arto Hujanen and Pertti Lintunen and Ulla Kanerva and Tommi Varis and M. Pasquale",

year = "2010",

doi = "10.1016/j.surfcoat.2010.03.060",

language = "English",

volume = "205",

pages = "1015--1020",

journal = "Surface and Coatings Technology",

issn = "0257-8972",

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TY - JOUR

T1 - Development of Ba-hexaferrite coatings for electromagnetic wave absorption applications

AU - Bobzin, K.

AU - Schlaefer, T.

AU - Bégard, M.

AU - Bruehl, M.

AU - Bolelli, G.

AU - Lusvarghi, L.

AU - Lisjak, D.

AU - Hujanen, Arto

AU - Lintunen, Pertti

AU - Kanerva, Ulla

AU - Varis, Tommi

AU - Pasquale, M.

PY - 2010

Y1 - 2010

N2 - 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.

AB - 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.

KW - APS spraying

KW - Ba-hexaferrite coatings

KW - Electromagnetic properties

KW - Micro-Raman spectroscopy

KW - Vibrating sample magnetometer

KW - X-ray diffraction

U2 - 10.1016/j.surfcoat.2010.03.060

DO - 10.1016/j.surfcoat.2010.03.060

M3 - Article

VL - 205

SP - 1015

EP - 1020

JO - Surface and Coatings Technology

JF - Surface and Coatings Technology

SN - 0257-8972

IS - 4

T2 - 4th Workshop RIPT (Les Rencontres Internationales sur la Projection Thermique)

Y2 - 2 December 2009 through 4 December 2009

ER -

Development of Ba-hexaferrite coatings for electromagnetic wave absorption applications

Abstract

Keywords

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