Magnetic phase formation in CoTi-substituted Ba hexaferrite coatings prepared with atmospheric plasma spraying

D. Lisjak (Corresponding Author), G. Bolelli, L. Lusvarghi, M. Bégard, M. Bruehl, K. Bobzin, Pertti Lintunen, Ulla Kanerva, M. Pasquale, M. Drofenik

    Research output: Contribution to journalArticleScientificpeer-review

    5 Citations (Scopus)

    Abstract

    Thick coatings of CoTi‐substituted Ba hexaferrite with the nominal composition BaCoTiFe10O19 were prepared using atmospheric plasma‐spraying technology. The coatings were prepared from prereacted powders of the desired composition. The as‐deposited coatings showed a high degree of crystallinity. A detailed investigation of the coatings' phase compositions was conducted with micro‐Raman spectroscopy and energy‐dispersive X‐ray spectroscopy. Two magnetic ferrite phases, CoTi‐substituted Ba hexaferrite and Co ferrite, were identified in the coatings. An X‐ray powder‐diffraction analysis and a quantitative structural analysis based on Rietveld refinement showed that the mass ratio of the two phases and their chemical composition varied with respect to the spraying parameters. Consequently, the static and microwave magnetic properties of the as‐sprayed coatings also varied. We were able to explain the formation of the two ferrite phases based on the interplay between the partial melting of the feedstock powder and the recrystallization kinetics.
    Original languageEnglish
    Pages (from-to)2579-2584
    Number of pages6
    JournalJournal of the American Ceramic Society
    Volume93
    Issue number9
    DOIs
    Publication statusPublished - 2010
    MoE publication typeA1 Journal article-refereed

    Fingerprint

    Plasma spraying
    Coatings
    Ferrite
    Powders
    Chemical analysis
    Spectroscopy
    Rietveld refinement
    Spraying
    Phase composition
    Structural analysis
    Feedstocks
    Magnetic properties
    Melting
    Microwaves
    Kinetics

    Keywords

    • ProperPart

    Cite this

    Lisjak, D. ; Bolelli, G. ; Lusvarghi, L. ; Bégard, M. ; Bruehl, M. ; Bobzin, K. ; Lintunen, Pertti ; Kanerva, Ulla ; Pasquale, M. ; Drofenik, M. / Magnetic phase formation in CoTi-substituted Ba hexaferrite coatings prepared with atmospheric plasma spraying. In: Journal of the American Ceramic Society. 2010 ; Vol. 93, No. 9. pp. 2579-2584.
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    title = "Magnetic phase formation in CoTi-substituted Ba hexaferrite coatings prepared with atmospheric plasma spraying",
    abstract = "Thick coatings of CoTi‐substituted Ba hexaferrite with the nominal composition BaCoTiFe10O19 were prepared using atmospheric plasma‐spraying technology. The coatings were prepared from prereacted powders of the desired composition. The as‐deposited coatings showed a high degree of crystallinity. A detailed investigation of the coatings' phase compositions was conducted with micro‐Raman spectroscopy and energy‐dispersive X‐ray spectroscopy. Two magnetic ferrite phases, CoTi‐substituted Ba hexaferrite and Co ferrite, were identified in the coatings. An X‐ray powder‐diffraction analysis and a quantitative structural analysis based on Rietveld refinement showed that the mass ratio of the two phases and their chemical composition varied with respect to the spraying parameters. Consequently, the static and microwave magnetic properties of the as‐sprayed coatings also varied. We were able to explain the formation of the two ferrite phases based on the interplay between the partial melting of the feedstock powder and the recrystallization kinetics.",
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    author = "D. Lisjak and G. Bolelli and L. Lusvarghi and M. B{\'e}gard and M. Bruehl and K. Bobzin and Pertti Lintunen and Ulla Kanerva and M. Pasquale and M. Drofenik",
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    Lisjak, D, Bolelli, G, Lusvarghi, L, Bégard, M, Bruehl, M, Bobzin, K, Lintunen, P, Kanerva, U, Pasquale, M & Drofenik, M 2010, 'Magnetic phase formation in CoTi-substituted Ba hexaferrite coatings prepared with atmospheric plasma spraying', Journal of the American Ceramic Society, vol. 93, no. 9, pp. 2579-2584. https://doi.org/10.1111/j.1551-2916.2010.03770.x

    Magnetic phase formation in CoTi-substituted Ba hexaferrite coatings prepared with atmospheric plasma spraying. / Lisjak, D. (Corresponding Author); Bolelli, G.; Lusvarghi, L.; Bégard, M.; Bruehl, M.; Bobzin, K.; Lintunen, Pertti; Kanerva, Ulla; Pasquale, M.; Drofenik, M.

    In: Journal of the American Ceramic Society, Vol. 93, No. 9, 2010, p. 2579-2584.

    Research output: Contribution to journalArticleScientificpeer-review

    TY - JOUR

    T1 - Magnetic phase formation in CoTi-substituted Ba hexaferrite coatings prepared with atmospheric plasma spraying

    AU - Lisjak, D.

    AU - Bolelli, G.

    AU - Lusvarghi, L.

    AU - Bégard, M.

    AU - Bruehl, M.

    AU - Bobzin, K.

    AU - Lintunen, Pertti

    AU - Kanerva, Ulla

    AU - Pasquale, M.

    AU - Drofenik, M.

    PY - 2010

    Y1 - 2010

    N2 - Thick coatings of CoTi‐substituted Ba hexaferrite with the nominal composition BaCoTiFe10O19 were prepared using atmospheric plasma‐spraying technology. The coatings were prepared from prereacted powders of the desired composition. The as‐deposited coatings showed a high degree of crystallinity. A detailed investigation of the coatings' phase compositions was conducted with micro‐Raman spectroscopy and energy‐dispersive X‐ray spectroscopy. Two magnetic ferrite phases, CoTi‐substituted Ba hexaferrite and Co ferrite, were identified in the coatings. An X‐ray powder‐diffraction analysis and a quantitative structural analysis based on Rietveld refinement showed that the mass ratio of the two phases and their chemical composition varied with respect to the spraying parameters. Consequently, the static and microwave magnetic properties of the as‐sprayed coatings also varied. We were able to explain the formation of the two ferrite phases based on the interplay between the partial melting of the feedstock powder and the recrystallization kinetics.

    AB - Thick coatings of CoTi‐substituted Ba hexaferrite with the nominal composition BaCoTiFe10O19 were prepared using atmospheric plasma‐spraying technology. The coatings were prepared from prereacted powders of the desired composition. The as‐deposited coatings showed a high degree of crystallinity. A detailed investigation of the coatings' phase compositions was conducted with micro‐Raman spectroscopy and energy‐dispersive X‐ray spectroscopy. Two magnetic ferrite phases, CoTi‐substituted Ba hexaferrite and Co ferrite, were identified in the coatings. An X‐ray powder‐diffraction analysis and a quantitative structural analysis based on Rietveld refinement showed that the mass ratio of the two phases and their chemical composition varied with respect to the spraying parameters. Consequently, the static and microwave magnetic properties of the as‐sprayed coatings also varied. We were able to explain the formation of the two ferrite phases based on the interplay between the partial melting of the feedstock powder and the recrystallization kinetics.

    KW - ProperPart

    U2 - 10.1111/j.1551-2916.2010.03770.x

    DO - 10.1111/j.1551-2916.2010.03770.x

    M3 - Article

    VL - 93

    SP - 2579

    EP - 2584

    JO - Journal of the American Ceramic Society

    JF - Journal of the American Ceramic Society

    SN - 0002-7820

    IS - 9

    ER -