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 journalArticleScientificpeer-review

    32 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 languageEnglish
    Pages (from-to)3312-3319
    Number of pages8
    JournalSurface and Coatings Technology
    Volume203
    Issue number20-21
    DOIs
    Publication statusPublished - 2009
    MoE publication typeA1 Journal article-refereed

    Fingerprint

    Electromagnetic wave absorption
    Thermal spraying
    spraying
    electromagnetic radiation
    coatings
    Coatings
    Magnetic properties
    magnetic properties
    Spray drying
    Crystallization
    retaining
    Solid state reactions
    Powders
    drying
    sprayers
    Molten materials
    Energy dispersive spectroscopy
    Quenching
    absorbers
    quenching

    Keywords

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

    Cite this

    Bégard, M. ; Bobzin, K. ; Bolelli, G. ; Hujanen, Arto ; Lintunen, Pertti ; Lisjak, D. ; Gyergyek, S. ; Lusvarghi, L. ; Pasquale, M. ; Richardt, K. ; Schläfer, T. ; Varis, Tommi. / Thermal spraying of Co,Ti-substituted Ba-hexaferrite coatings for electromagnetic wave absorption applications. In: Surface and Coatings Technology. 2009 ; Vol. 203, No. 20-21. pp. 3312-3319.
    @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

    Thermal spraying of Co,Ti-substituted Ba-hexaferrite coatings for electromagnetic wave absorption applications. / Bégard, M.; Bobzin, K.; Bolelli, G. (Corresponding Author); Hujanen, Arto; Lintunen, Pertti; Lisjak, D.; Gyergyek, S.; Lusvarghi, L.; Pasquale, M.; Richardt, K.; Schläfer, T.; Varis, Tommi.

    In: Surface and Coatings Technology, Vol. 203, No. 20-21, 2009, p. 3312-3319.

    Research output: Contribution to journalArticleScientificpeer-review

    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

    VL - 203

    SP - 3312

    EP - 3319

    JO - Surface and Coatings Technology

    JF - Surface and Coatings Technology

    SN - 0257-8972

    IS - 20-21

    ER -