Preparation and dielectric property of sintered monoclinic hydroxyapatite

Toshiyuki Ikoma, Atsushi Yamazaki, Satoshi Nakamura, Masaru Akao

    Research output: Contribution to journalArticle

    39 Citations (Scopus)

    Abstract

    A preparation method of sintered monoclinic hydroxyapatite, Ca10(PO4)6(OH)2 is presented and its dielectric properties at various temperatures and/or frequencies are discussed. Sintered monoclinic hydroxyapatite showed two dielectric-loss peaks which can be attributed to reorientation of hydroxyl ions and defects of hydroxyl ions due to formation of oxyapatite. A dielectric anomaly at 483 K was observed, being consistent with the phase transition that change the hydroxyl dipole moments; the hydroxyl dipole moment is ordered at temperature lower than 483 K and that is disordered at temperatures higher than 483 K.

    Original languageEnglish
    Pages (from-to)1225-1228
    Number of pages4
    JournalJournal of Materials Science Letters
    Volume18
    Issue number15
    DOIs
    Publication statusPublished - 1999

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    Durapatite
    Hydroxyapatite
    Dielectric properties
    Dipole moment
    Hydroxyl Radical
    Ions
    Dielectric losses
    Temperature
    Phase transitions
    Defects
    hydroxide ion

    ASJC Scopus subject areas

    • Materials Science(all)

    Cite this

    Preparation and dielectric property of sintered monoclinic hydroxyapatite. / Ikoma, Toshiyuki; Yamazaki, Atsushi; Nakamura, Satoshi; Akao, Masaru.

    In: Journal of Materials Science Letters, Vol. 18, No. 15, 1999, p. 1225-1228.

    Research output: Contribution to journalArticle

    Ikoma, Toshiyuki ; Yamazaki, Atsushi ; Nakamura, Satoshi ; Akao, Masaru. / Preparation and dielectric property of sintered monoclinic hydroxyapatite. In: Journal of Materials Science Letters. 1999 ; Vol. 18, No. 15. pp. 1225-1228.
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    AU - Nakamura, Satoshi

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