Thermal spraying of Co,Ti-substituted Ba-hexaferrite coatings for electromagnetic wave absorption applications

M. Bégard; K. Bobzin; G. Bolelli; Arto Hujanen; Pertti Lintunen; D. Lisjak; S. Gyergyek; L. Lusvarghi; M. Pasquale; K. Richardt; T. Schläfer; Tommi Varis

doi:10.1016/j.surfcoat.2009.04.007

Thermal spraying of Co,Ti-substituted Ba-hexaferrite coatings for electromagnetic wave absorption applications

M. Bégard, K. Bobzin, G. Bolelli (Corresponding Author), Arto Hujanen, Pertti Lintunen, D. Lisjak, S. Gyergyek, L. Lusvarghi, M. Pasquale, K. Richardt, T. Schläfer, Tommi Varis

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

40 Citations (Scopus)

Abstract

Co,Ti-substituted Ba-hexaferrite (BaCoTiFe₁₀O₁₉) coatings for applications as microwave absorbers were deposited by the APS and HVOF techniques, using BaCoTiFe₁₀O₁₉ powders manufactured by solid-state reaction followed by spray-drying. The SEM + EDX, XRD and micro-Raman analyses indicated that impact quenching of molten agglomerates on the substrate hindered the crystallisation of the hexaferrite structure, resulting in poor magnetic properties of the coatings. Adjusted processing conditions enabled the deposition of a coating retaining enough hexaferrite phase, whose magnetic properties, close to bulk BaCoTiFe₁₀O₁₉, are very promising for electromagnetic wave absorption.

Original language	English
Pages (from-to)	3312-3319
Number of pages	8
Journal	Surface and Coatings Technology
Volume	203
Issue number	20-21
DOIs	https://doi.org/10.1016/j.surfcoat.2009.04.007
Publication status	Published - 2009
MoE publication type	A1 Journal article-refereed

Keywords

Plasma spraying
High velocity oxy-fuel spraying
Hexaferrite coatings
Electromagnetic wave absorbers
Metastable phases
Magnetic properties
ProperPart

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10.1016/j.surfcoat.2009.04.007

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Bégard, M., Bobzin, K., Bolelli, G., Hujanen, A., Lintunen, P., Lisjak, D., Gyergyek, S., Lusvarghi, L., Pasquale, M., Richardt, K., Schläfer, T., & Varis, T. (2009). Thermal spraying of Co,Ti-substituted Ba-hexaferrite coatings for electromagnetic wave absorption applications. Surface and Coatings Technology, 203(20-21), 3312-3319. https://doi.org/10.1016/j.surfcoat.2009.04.007

@article{559bde161a6141b888db6220f43ec7a9,

title = "Thermal spraying of Co,Ti-substituted Ba-hexaferrite coatings for electromagnetic wave absorption applications",

abstract = "Co,Ti-substituted Ba-hexaferrite (BaCoTiFe10O19) coatings for applications as microwave absorbers were deposited by the APS and HVOF techniques, using BaCoTiFe10O19 powders manufactured by solid-state reaction followed by spray-drying. The SEM + EDX, XRD and micro-Raman analyses indicated that impact quenching of molten agglomerates on the substrate hindered the crystallisation of the hexaferrite structure, resulting in poor magnetic properties of the coatings. Adjusted processing conditions enabled the deposition of a coating retaining enough hexaferrite phase, whose magnetic properties, close to bulk BaCoTiFe10O19, are very promising for electromagnetic wave absorption.",

keywords = "Plasma spraying, High velocity oxy-fuel spraying, Hexaferrite coatings, Electromagnetic wave absorbers, Metastable phases, Magnetic properties, ProperPart",

author = "M. B{\'e}gard and K. Bobzin and G. Bolelli and Arto Hujanen and Pertti Lintunen and D. Lisjak and S. Gyergyek and L. Lusvarghi and M. Pasquale and K. Richardt and T. Schl{\"a}fer and Tommi Varis",

year = "2009",

doi = "10.1016/j.surfcoat.2009.04.007",

language = "English",

volume = "203",

pages = "3312--3319",

journal = "Surface and Coatings Technology",

issn = "0257-8972",

publisher = "Elsevier",

number = "20-21",

}

Bégard, M, Bobzin, K, Bolelli, G, Hujanen, A , Lintunen, P, Lisjak, D, Gyergyek, S, Lusvarghi, L, Pasquale, M, Richardt, K, Schläfer, T & Varis, T 2009, 'Thermal spraying of Co,Ti-substituted Ba-hexaferrite coatings for electromagnetic wave absorption applications', Surface and Coatings Technology, vol. 203, no. 20-21, pp. 3312-3319. https://doi.org/10.1016/j.surfcoat.2009.04.007

TY - JOUR

T1 - Thermal spraying of Co,Ti-substituted Ba-hexaferrite coatings for electromagnetic wave absorption applications

AU - Bégard, M.

AU - Bobzin, K.

AU - Bolelli, G.

AU - Hujanen, Arto

AU - Lintunen, Pertti

AU - Lisjak, D.

AU - Gyergyek, S.

AU - Lusvarghi, L.

AU - Pasquale, M.

AU - Richardt, K.

AU - Schläfer, T.

AU - Varis, Tommi

PY - 2009

Y1 - 2009

N2 - Co,Ti-substituted Ba-hexaferrite (BaCoTiFe10O19) coatings for applications as microwave absorbers were deposited by the APS and HVOF techniques, using BaCoTiFe10O19 powders manufactured by solid-state reaction followed by spray-drying. The SEM + EDX, XRD and micro-Raman analyses indicated that impact quenching of molten agglomerates on the substrate hindered the crystallisation of the hexaferrite structure, resulting in poor magnetic properties of the coatings. Adjusted processing conditions enabled the deposition of a coating retaining enough hexaferrite phase, whose magnetic properties, close to bulk BaCoTiFe10O19, are very promising for electromagnetic wave absorption.

AB - Co,Ti-substituted Ba-hexaferrite (BaCoTiFe10O19) coatings for applications as microwave absorbers were deposited by the APS and HVOF techniques, using BaCoTiFe10O19 powders manufactured by solid-state reaction followed by spray-drying. The SEM + EDX, XRD and micro-Raman analyses indicated that impact quenching of molten agglomerates on the substrate hindered the crystallisation of the hexaferrite structure, resulting in poor magnetic properties of the coatings. Adjusted processing conditions enabled the deposition of a coating retaining enough hexaferrite phase, whose magnetic properties, close to bulk BaCoTiFe10O19, are very promising for electromagnetic wave absorption.

KW - Plasma spraying

KW - High velocity oxy-fuel spraying

KW - Hexaferrite coatings

KW - Electromagnetic wave absorbers

KW - Metastable phases

KW - Magnetic properties

KW - ProperPart

U2 - 10.1016/j.surfcoat.2009.04.007

DO - 10.1016/j.surfcoat.2009.04.007

M3 - Article

SN - 0257-8972

VL - 203

SP - 3312

EP - 3319

JO - Surface and Coatings Technology

JF - Surface and Coatings Technology

IS - 20-21

ER -

Thermal spraying of Co,Ti-substituted Ba-hexaferrite coatings for electromagnetic wave absorption applications

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Keywords

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