The rare-earth dependence on the solid solution formation and electrical properties of KCa2-xRxNb3O10 (R=Nd, Sm, Gd and Ce)

Daisuke Hamada, Wataru Sugimoto, Yoshiyuki Sugahara, Kazuyuki Kuroda

    Research output: Contribution to journalArticle

    5 Citations (Scopus)

    Abstract

    The solid solution KCa2-xRxNb3O10 (R=Nd, Sm, Gd and Ce) was prepared by solid-state reaction using KCa2 Nb3O10, KNbO3, Nb2O5, Nb and rare-earth oxides. The solubility limit of the solid solutions was extended with an increase in the ionic radii of the rare earths. All the solid solutions exhibited similar semiconductive behavior with a linear log p-T relationship over a wide temperature range. These results suggest that the conduction mechanism is independent of the type of rare earths and also the unit-cell parameters, which agrees well with the tunneling conduction model with a vibrating barrier.

    Original languageEnglish
    Pages (from-to)284-287
    Number of pages4
    JournalNippon Seramikkusu Kyokai Gakujutsu Ronbunshi/Journal of the Ceramic Society of Japan
    Volume105
    Issue number4
    Publication statusPublished - 1997

    Fingerprint

    Rare earths
    Solid solutions
    Electric properties
    solid solutions
    rare earth elements
    electrical properties
    conduction
    Solid state reactions
    Oxides
    solubility
    Solubility
    solid state
    radii
    oxides
    cells
    Temperature
    temperature

    Keywords

    • Layered perovskite
    • Niobate
    • Rare earth
    • Solid solution
    • Solid-state reaction
    • Tunneling conduction

    ASJC Scopus subject areas

    • Ceramics and Composites

    Cite this

    @article{09cdd122f4b74b9c9db4ff26190ee6d1,
    title = "The rare-earth dependence on the solid solution formation and electrical properties of KCa2-xRxNb3O10 (R=Nd, Sm, Gd and Ce)",
    abstract = "The solid solution KCa2-xRxNb3O10 (R=Nd, Sm, Gd and Ce) was prepared by solid-state reaction using KCa2 Nb3O10, KNbO3, Nb2O5, Nb and rare-earth oxides. The solubility limit of the solid solutions was extended with an increase in the ionic radii of the rare earths. All the solid solutions exhibited similar semiconductive behavior with a linear log p-T relationship over a wide temperature range. These results suggest that the conduction mechanism is independent of the type of rare earths and also the unit-cell parameters, which agrees well with the tunneling conduction model with a vibrating barrier.",
    keywords = "Layered perovskite, Niobate, Rare earth, Solid solution, Solid-state reaction, Tunneling conduction",
    author = "Daisuke Hamada and Wataru Sugimoto and Yoshiyuki Sugahara and Kazuyuki Kuroda",
    year = "1997",
    language = "English",
    volume = "105",
    pages = "284--287",
    journal = "Nippon Seramikkusu Kyokai Gakujutsu Ronbunshi/Journal of the Ceramic Society of Japan",
    issn = "1882-0743",
    publisher = "Ceramic Society of Japan/Nippon Seramikkusu Kyokai",
    number = "4",

    }

    TY - JOUR

    T1 - The rare-earth dependence on the solid solution formation and electrical properties of KCa2-xRxNb3O10 (R=Nd, Sm, Gd and Ce)

    AU - Hamada, Daisuke

    AU - Sugimoto, Wataru

    AU - Sugahara, Yoshiyuki

    AU - Kuroda, Kazuyuki

    PY - 1997

    Y1 - 1997

    N2 - The solid solution KCa2-xRxNb3O10 (R=Nd, Sm, Gd and Ce) was prepared by solid-state reaction using KCa2 Nb3O10, KNbO3, Nb2O5, Nb and rare-earth oxides. The solubility limit of the solid solutions was extended with an increase in the ionic radii of the rare earths. All the solid solutions exhibited similar semiconductive behavior with a linear log p-T relationship over a wide temperature range. These results suggest that the conduction mechanism is independent of the type of rare earths and also the unit-cell parameters, which agrees well with the tunneling conduction model with a vibrating barrier.

    AB - The solid solution KCa2-xRxNb3O10 (R=Nd, Sm, Gd and Ce) was prepared by solid-state reaction using KCa2 Nb3O10, KNbO3, Nb2O5, Nb and rare-earth oxides. The solubility limit of the solid solutions was extended with an increase in the ionic radii of the rare earths. All the solid solutions exhibited similar semiconductive behavior with a linear log p-T relationship over a wide temperature range. These results suggest that the conduction mechanism is independent of the type of rare earths and also the unit-cell parameters, which agrees well with the tunneling conduction model with a vibrating barrier.

    KW - Layered perovskite

    KW - Niobate

    KW - Rare earth

    KW - Solid solution

    KW - Solid-state reaction

    KW - Tunneling conduction

    UR - http://www.scopus.com/inward/record.url?scp=0031120132&partnerID=8YFLogxK

    UR - http://www.scopus.com/inward/citedby.url?scp=0031120132&partnerID=8YFLogxK

    M3 - Article

    AN - SCOPUS:0031120132

    VL - 105

    SP - 284

    EP - 287

    JO - Nippon Seramikkusu Kyokai Gakujutsu Ronbunshi/Journal of the Ceramic Society of Japan

    JF - Nippon Seramikkusu Kyokai Gakujutsu Ronbunshi/Journal of the Ceramic Society of Japan

    SN - 1882-0743

    IS - 4

    ER -