Capacitance distribution of Ni-Nb-Zr-H glassy alloys

Mikio Fukuhara, Hajime Yoshida, Nobuhisa Fujima, Hiroshi Kawarada

    Research output: Contribution to journalArticle

    5 Citations (Scopus)

    Abstract

    Capacitance distribution of {(Ni 0.6Nb 0.4) 1-xZr x} 100-y-H y (x = 0.30, 0.35, 0.40, 0.45 and 0.50, 0 ≥ y ≥ 20) glassy alloy ribbons was carried out by ac impedance analysis at frequency of 1 kHz, in terms of a distributed constant equivalent circuit. The capacitance can be represented by oblique contour lines. The highest capacitance (1-11 μF) could be found near the point when x = 0.40, y = 10, which is a composition occurring room-temperature Coulomb oscillation, while capacitance of the composition (x =0.35, y =4) occurring ballistic transport was around 0.8 μF. The capacitance difference would be explained by an effect of hydrogen localization derived from morphology of distorted Zr-centered icosahedral Zr 5Ni 5Nb 3 clusters and ideal Ni-centered clusters. The electrocapillarity equation showed that the specific capacitance between two electrodes increases parabolic with decreasing the distance, as a polarized glutinous liquid.

    Original languageEnglish
    Pages (from-to)3848-3852
    Number of pages5
    JournalJournal of Nanoscience and Nanotechnology
    Volume12
    Issue number5
    DOIs
    Publication statusPublished - 2012

    Fingerprint

    Electric Impedance
    Hydrogen
    Electrodes
    Capacitance
    capacitance
    Temperature
    Ballistics
    Chemical analysis
    equivalent circuits
    Equivalent circuits
    ballistics
    ribbons
    impedance
    oscillations
    electrodes
    Liquids
    room temperature
    hydrogen
    liquids

    Keywords

    • Capacitance
    • Electrocapillarity
    • Glassy Alloys
    • Icosahedral Cluster

    ASJC Scopus subject areas

    • Condensed Matter Physics
    • Chemistry(all)
    • Materials Science(all)
    • Bioengineering
    • Biomedical Engineering

    Cite this

    Capacitance distribution of Ni-Nb-Zr-H glassy alloys. / Fukuhara, Mikio; Yoshida, Hajime; Fujima, Nobuhisa; Kawarada, Hiroshi.

    In: Journal of Nanoscience and Nanotechnology, Vol. 12, No. 5, 2012, p. 3848-3852.

    Research output: Contribution to journalArticle

    Fukuhara, Mikio ; Yoshida, Hajime ; Fujima, Nobuhisa ; Kawarada, Hiroshi. / Capacitance distribution of Ni-Nb-Zr-H glassy alloys. In: Journal of Nanoscience and Nanotechnology. 2012 ; Vol. 12, No. 5. pp. 3848-3852.
    @article{95283a9579b746dbb079e163be2b0975,
    title = "Capacitance distribution of Ni-Nb-Zr-H glassy alloys",
    abstract = "Capacitance distribution of {(Ni 0.6Nb 0.4) 1-xZr x} 100-y-H y (x = 0.30, 0.35, 0.40, 0.45 and 0.50, 0 ≥ y ≥ 20) glassy alloy ribbons was carried out by ac impedance analysis at frequency of 1 kHz, in terms of a distributed constant equivalent circuit. The capacitance can be represented by oblique contour lines. The highest capacitance (1-11 μF) could be found near the point when x = 0.40, y = 10, which is a composition occurring room-temperature Coulomb oscillation, while capacitance of the composition (x =0.35, y =4) occurring ballistic transport was around 0.8 μF. The capacitance difference would be explained by an effect of hydrogen localization derived from morphology of distorted Zr-centered icosahedral Zr 5Ni 5Nb 3 clusters and ideal Ni-centered clusters. The electrocapillarity equation showed that the specific capacitance between two electrodes increases parabolic with decreasing the distance, as a polarized glutinous liquid.",
    keywords = "Capacitance, Electrocapillarity, Glassy Alloys, Icosahedral Cluster",
    author = "Mikio Fukuhara and Hajime Yoshida and Nobuhisa Fujima and Hiroshi Kawarada",
    year = "2012",
    doi = "10.1166/jnn.2012.5862",
    language = "English",
    volume = "12",
    pages = "3848--3852",
    journal = "Journal of Nanoscience and Nanotechnology",
    issn = "1533-4880",
    publisher = "American Scientific Publishers",
    number = "5",

    }

    TY - JOUR

    T1 - Capacitance distribution of Ni-Nb-Zr-H glassy alloys

    AU - Fukuhara, Mikio

    AU - Yoshida, Hajime

    AU - Fujima, Nobuhisa

    AU - Kawarada, Hiroshi

    PY - 2012

    Y1 - 2012

    N2 - Capacitance distribution of {(Ni 0.6Nb 0.4) 1-xZr x} 100-y-H y (x = 0.30, 0.35, 0.40, 0.45 and 0.50, 0 ≥ y ≥ 20) glassy alloy ribbons was carried out by ac impedance analysis at frequency of 1 kHz, in terms of a distributed constant equivalent circuit. The capacitance can be represented by oblique contour lines. The highest capacitance (1-11 μF) could be found near the point when x = 0.40, y = 10, which is a composition occurring room-temperature Coulomb oscillation, while capacitance of the composition (x =0.35, y =4) occurring ballistic transport was around 0.8 μF. The capacitance difference would be explained by an effect of hydrogen localization derived from morphology of distorted Zr-centered icosahedral Zr 5Ni 5Nb 3 clusters and ideal Ni-centered clusters. The electrocapillarity equation showed that the specific capacitance between two electrodes increases parabolic with decreasing the distance, as a polarized glutinous liquid.

    AB - Capacitance distribution of {(Ni 0.6Nb 0.4) 1-xZr x} 100-y-H y (x = 0.30, 0.35, 0.40, 0.45 and 0.50, 0 ≥ y ≥ 20) glassy alloy ribbons was carried out by ac impedance analysis at frequency of 1 kHz, in terms of a distributed constant equivalent circuit. The capacitance can be represented by oblique contour lines. The highest capacitance (1-11 μF) could be found near the point when x = 0.40, y = 10, which is a composition occurring room-temperature Coulomb oscillation, while capacitance of the composition (x =0.35, y =4) occurring ballistic transport was around 0.8 μF. The capacitance difference would be explained by an effect of hydrogen localization derived from morphology of distorted Zr-centered icosahedral Zr 5Ni 5Nb 3 clusters and ideal Ni-centered clusters. The electrocapillarity equation showed that the specific capacitance between two electrodes increases parabolic with decreasing the distance, as a polarized glutinous liquid.

    KW - Capacitance

    KW - Electrocapillarity

    KW - Glassy Alloys

    KW - Icosahedral Cluster

    UR - http://www.scopus.com/inward/record.url?scp=84863883894&partnerID=8YFLogxK

    UR - http://www.scopus.com/inward/citedby.url?scp=84863883894&partnerID=8YFLogxK

    U2 - 10.1166/jnn.2012.5862

    DO - 10.1166/jnn.2012.5862

    M3 - Article

    C2 - 22852315

    AN - SCOPUS:84863883894

    VL - 12

    SP - 3848

    EP - 3852

    JO - Journal of Nanoscience and Nanotechnology

    JF - Journal of Nanoscience and Nanotechnology

    SN - 1533-4880

    IS - 5

    ER -