Classification of submicron Ni particles by heterocoagulation

Toyohisa Fujita, Ryoji Ito, Chiharu Tokoro, Jun Sadaki, Gjergj Dodbiba, Ryosuke Tsukamoto, Hiroshi Okuda, Hiroshi Yamane

    Research output: Contribution to journalArticle

    5 Citations (Scopus)

    Abstract

    In this work, the size classification of a mixture of submicron and micron size Ni particles dispersed in aqueous solution was investigated. The suspension of Ni particles was allowed to flow, under laminar condition, through a burette filled with an adhesion medium (i.e. substrate). The difference between zeta potentials of larger particles and adhesion medium created a base for the heterocoagulation. Thus, the larger particles move towards the medium assisted by the Saffman lift force and are attracted to its surface. The finer particles, on the other hand, flow off the burette and were collected as a separate fraction. This phenomenon was then explained by numerical simulating the particle's motion and showing that a stronger Saffman lift force will act in the direction of the substrate only for large particles, leaving the smaller ones unaffected as they sediment out.

    Original languageEnglish
    Pages (from-to)19-28
    Number of pages10
    JournalPowder Technology
    Volume173
    Issue number1
    DOIs
    Publication statusPublished - 2007 Apr 10

    Fingerprint

    Adhesion
    Substrates
    Zeta potential
    Suspensions
    Sediments
    adhesion
    particle motion
    sediments
    aqueous solutions
    Direction compound

    Keywords

    • Classification
    • Heterocoagulation
    • Nickel particles
    • Saffman lift force
    • Submicron particle

    ASJC Scopus subject areas

    • Chemical Engineering(all)
    • Physical and Theoretical Chemistry

    Cite this

    Fujita, T., Ito, R., Tokoro, C., Sadaki, J., Dodbiba, G., Tsukamoto, R., ... Yamane, H. (2007). Classification of submicron Ni particles by heterocoagulation. Powder Technology, 173(1), 19-28. https://doi.org/10.1016/j.powtec.2006.10.033

    Classification of submicron Ni particles by heterocoagulation. / Fujita, Toyohisa; Ito, Ryoji; Tokoro, Chiharu; Sadaki, Jun; Dodbiba, Gjergj; Tsukamoto, Ryosuke; Okuda, Hiroshi; Yamane, Hiroshi.

    In: Powder Technology, Vol. 173, No. 1, 10.04.2007, p. 19-28.

    Research output: Contribution to journalArticle

    Fujita, T, Ito, R, Tokoro, C, Sadaki, J, Dodbiba, G, Tsukamoto, R, Okuda, H & Yamane, H 2007, 'Classification of submicron Ni particles by heterocoagulation', Powder Technology, vol. 173, no. 1, pp. 19-28. https://doi.org/10.1016/j.powtec.2006.10.033
    Fujita, Toyohisa ; Ito, Ryoji ; Tokoro, Chiharu ; Sadaki, Jun ; Dodbiba, Gjergj ; Tsukamoto, Ryosuke ; Okuda, Hiroshi ; Yamane, Hiroshi. / Classification of submicron Ni particles by heterocoagulation. In: Powder Technology. 2007 ; Vol. 173, No. 1. pp. 19-28.
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    AU - Tokoro, Chiharu

    AU - Sadaki, Jun

    AU - Dodbiba, Gjergj

    AU - Tsukamoto, Ryosuke

    AU - Okuda, Hiroshi

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