English  |  正體中文  |  简体中文  |  Items with full text/Total items : 49647/84944 (58%)
Visitors : 7712239      Online Users : 91
RC Version 7.0 © Powered By DSPACE, MIT. Enhanced by NTU Library & TKU Library IR team.
Scope Tips:
  • please add "double quotation mark" for query phrases to get precise results
  • please goto advance search for comprehansive author search
  • Adv. Search
    HomeLoginUploadHelpAboutAdminister Goto mobile version
    Please use this identifier to cite or link to this item: http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/27659


    Title: Microstructures of X7R type base-metal-electroded BaTiO3 capacitor materials prepared by duplex-structured process
    Authors: 陳正劭;Chen, Cheng-sao;Chou, Chen-chia;林諭男;Lin, I-nan
    Contributors: 淡江大學物理學系
    Keywords: Electron microscopy;BaTiO3;Capacitors
    Date: 2005
    Issue Date: 2009-12-31 10:34:53 (UTC+8)
    Publisher: Elsevier
    Abstract: Low temperature coefficient of capacitance (TCC) for the MgO/Y2O3 co-doped BaTiO3 materials can be achieved by a duplex-structured process. The results of structure refinement reveal that large amount of MgO species can not only suppress the grain growth but increase the volume fraction of cubic phase of paraelectric BaTiO3 at room temperature. Investigations of transmission electron microscopy (TEM) indicate that the detailed microstructure is extremely complicated for the BaTiO3 materials. The heavily doped constituents of the samples remained as fine grains with paraelectric phase, whereas the lightly doped constituents of the materials grew, resulting in a core-shell microstructure via the incorporation of the MgO species when the mixture of the two constituents was sintered. The unique dielectric constant (K)–temperature (T) characteristics of the samples are ascribed to the duplex structure of the samples, which contain fine grains of cubic structure and large grains of core-shell structure.
    Relation: Journal of the European Ceramic Society 25(12), pp.2743-2747
    DOI: 10.1016/j.jeurceramsoc.2005.03.132
    Appears in Collections:[物理學系暨研究所] 期刊論文

    Files in This Item:

    File Description SizeFormat
    0KbUnknown175View/Open
    index.html0KbHTML27View/Open

    All items in 機構典藏 are protected by copyright, with all rights reserved.


    DSpace Software Copyright © 2002-2004  MIT &  Hewlett-Packard  /   Enhanced by   NTU Library & TKU Library IR teams. Copyright ©   - Feedback