National Tsing Hua University Institutional Repository:The abnormal grain growth and dielectric properties of (Nb, Ba) doped TiO2 ceramics
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    National Tsing Hua University Institutional Repository > 工學院  > 材料科學工程學系 > 期刊論文 >  The abnormal grain growth and dielectric properties of (Nb, Ba) doped TiO2 ceramics


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    题名: The abnormal grain growth and dielectric properties of (Nb, Ba) doped TiO2 ceramics
    作者: Chen, C.J.;Wu, J.M.
    教師: 吳振名
    日期: 1989
    出版者: Springer Verlag
    關聯: 1989, vol. 24, no8, pp. 2871-2878
    关键词: titanium compounds
    powder technology
    permittivity
    niobium
    grain growth
    barium
    ceramics
    densification
    dielectric properties of solids
    dielectric relaxation
    摘要: The effect of consolidation pressure and crystallite size of powder crystal phases of TiO2 on sintered microstructure of TiO2 ceramics doped with 0.25 mol.% Nb and 1.0 mol.% Ba were investigated. Also, the development sequence of abnormal grain growth of (niobium, barium) doped TiO2 ceramics was proposed. The second phases of as-sintered surface were determined. The dielectric properties of Ag-electroded samples were correlated with the resistivity of the bulk (Nb, Ba) doped TiO2 ceramics. Abnormal grain growth lowered the resistivity of bulk material of (Nb, Ba) doped TiO2 ceramics, and moved the relaxation frequency of tan δ to high frequency region over 105 Hz. Controlling the sintered microstructures can obtain reasonably good dielectric properties
    URI: http://cat.inist.fr/?aModele=afficheN&cpsidt=7349303
    http://www.springerlink.com/
    http://nthur.lib.nthu.edu.tw/dspace/handle/987654321/52335
    显示于类别:[材料科學工程學系] 期刊論文

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