High-dielectric-constant ceramic-powder polymer composites

Y. Bai, Z. Y. Cheng, V. Bharti, H. S. Xu, Qiming Zhang

    Research output: Contribution to journalArticle

    605 Citations (Scopus)

    Abstract

    A ceramic-powder polymer composite, making use of a relaxor ferroelectric polymer that has a high room-temperature dielectric constant as the matrix, is developed. The experimental data show that the dielectric constant of the composites with Pb(Mg1/3Nb2/3)O3-PbTiO3 powders can reach more than 250 with weak temperature dependence. In addition, the composites under a proper preparation procedure exhibit a high breakdown field strength (>120 MV/m), leading to a maximum energy storage density of more than 15 J/cm3. Experimental results also indicate that the high electron irradiation does not have much effect on the dielectric behavior of Pb(Mg1/3Nb2/3)O3-PbTiO3 powders, possibly due to the relaxor nature of the ceramic.

    Original languageEnglish (US)
    Pages (from-to)3804-3806
    Number of pages3
    JournalApplied Physics Letters
    Volume76
    Issue number25
    DOIs
    StatePublished - Jun 19 2000

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    ceramics
    permittivity
    composite materials
    polymers
    electron irradiation
    energy storage
    field strength
    breakdown
    temperature dependence
    preparation
    room temperature
    matrices

    All Science Journal Classification (ASJC) codes

    • Physics and Astronomy (miscellaneous)

    Cite this

    Bai, Y. ; Cheng, Z. Y. ; Bharti, V. ; Xu, H. S. ; Zhang, Qiming. / High-dielectric-constant ceramic-powder polymer composites. In: Applied Physics Letters. 2000 ; Vol. 76, No. 25. pp. 3804-3806.
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    abstract = "A ceramic-powder polymer composite, making use of a relaxor ferroelectric polymer that has a high room-temperature dielectric constant as the matrix, is developed. The experimental data show that the dielectric constant of the composites with Pb(Mg1/3Nb2/3)O3-PbTiO3 powders can reach more than 250 with weak temperature dependence. In addition, the composites under a proper preparation procedure exhibit a high breakdown field strength (>120 MV/m), leading to a maximum energy storage density of more than 15 J/cm3. Experimental results also indicate that the high electron irradiation does not have much effect on the dielectric behavior of Pb(Mg1/3Nb2/3)O3-PbTiO3 powders, possibly due to the relaxor nature of the ceramic.",
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    High-dielectric-constant ceramic-powder polymer composites. / Bai, Y.; Cheng, Z. Y.; Bharti, V.; Xu, H. S.; Zhang, Qiming.

    In: Applied Physics Letters, Vol. 76, No. 25, 19.06.2000, p. 3804-3806.

    Research output: Contribution to journalArticle

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    AU - Zhang, Qiming

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