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^*
, G. Bolelli
, L. Lusvarghi
, D. Lisjak
, Arto Hujanen
, Pertti Lintunen
, Ulla Kanerva
, Tommi Varis
, M. Pasquale

^*Corresponding author for this work

National Metrological Institute (INRIM)
RWTH Aachen University
University of Modena and Reggio Emilia
Jožef Stefan Institute
VTT (former employee or external)

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

21 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
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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note = "4th Workshop RIPT (Les Rencontres Internationales sur la Projection Thermique) ; Conference date: 02-12-2009 Through 04-12-2009",

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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

SN - 0257-8972

VL - 205

SP - 1015

EP - 1020

JO - Surface and Coatings Technology

JF - Surface and Coatings Technology

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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