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    Please use this identifier to cite or link to this item: http://ir.lib.ksu.edu.tw/handle/987654321/9356


    Title: Synthesis of temperature-stable microwave dielectric ceramics NiNb2O6 with TiO2 addition
    Authors: 曾清標
    Yi-Cheng Liou
    Ying-Tsun Chen
    Wen-Chou Tsai
    Contributor: 圖書資訊館
    Keywords: Scanning electron microscopy
    X-ray diffraction
    Date: 2010-01-07
    Issue Date: 2010-03-11 11:29:52 (UTC+8)
    Abstract: NiNb2O6 ceramics with 8–10 mol% TiO2 were investigated. A mixture of raw materials was sintered into
    ceramics by bypassing calcination and subsequent pulverization stages. The addition of TiO2 resulted in
    the formation of a Ni4Nb2O9 phase and phases with the same structure as that of a Ni0.5Ti0.5NbO4 phase.
    An increase in the TiO2 content resulted in an increase in the content of the Ni0.5Ti0.5NbO4-like phase,
    especially at high sintering temperatures. The dielectric constant increased from29.2 at 1170 ◦C to 31.1 at
    1230 ◦C in NiNb2O6 ceramics with 9 mol% TiO2. Qxf reached 36800GHz in NiNb2O6 ceramics with 8 mol%
    TiO2. It decreased as the TiO2 content increased with the content of the Ni0.5Ti0.5NbO4-like phase with a
    low Qxf. f between −2 and 2 ppm/◦C could be obtained in NiNb2O6 ceramics with 9 and 10 mol% TiO2.
    Relation: Journal of Alloys and Compounds 477 (2009) 537–542
    Appears in Collections:[電子工程系所] 期刊論文

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