English  |  正體中文  |  简体中文  |  全文筆數/總筆數 : 49064/83178 (59%)
造訪人次 : 6965752      線上人數 : 37
RC Version 7.0 © Powered By DSPACE, MIT. Enhanced by NTU Library & TKU Library IR team.
搜尋範圍 查詢小技巧:
  • 您可在西文檢索詞彙前後加上"雙引號",以獲取較精準的檢索結果
  • 若欲以作者姓名搜尋,建議至進階搜尋限定作者欄位,可獲得較完整資料
  • 進階搜尋
    請使用永久網址來引用或連結此文件: http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/27488


    題名: Development of X7R type base-metal-electroded BaTiO3 capacitor materials by Co-doping of MgO/Y2O3 additives
    作者: Chou, Chen-chia;陳正劭;Chen, Cheng-sao;林諭男;Lin, I-nan;Yang, Wei-chun;Cheng, Hsiu-fung
    貢獻者: 淡江大學物理學系
    關鍵詞: Ferroelectric;barium titanate;multilayer ceramic capacitors;transmission electron microscopy
    日期: 2006
    上傳時間: 2009-12-31 10:11:52 (UTC+8)
    出版者: Taylor & Francis
    摘要: In this report, effect of MgO and Y2O3 additives on modifying the dielectric constant-temperature (K-T curve) properties of the BaTiO3 materials for multilayer ceramic capacitors (MLCC), using base metals (Cu and Ni) as electrode materials was systematically studied. Low temperature coefficient of capacitance (TCC), which meets X7R specification, has been obtained. Microstructural examinations using transmission electron microscopy (TEM) indicate that small TCC of thus obtained materials is attributed to microstructural control of materials. Simulation using simplified microstructure model indicates that the effective dielectric constant of core-shell structured materials significantly not only with the dielectric properties of cores and shells, but also with the shell-to-core thickness ratio, which results in a K-T behavior extremely sensitive with the processing parameters. In contrast, the X7R type K-T properties for BaTiO3 materials can be obtained in a much wider processing window by forming duplexed structure. Simulation also indicated that the effective dielectric constant of such a duplexed material is relatively insensitive to the fluctuation of K-T properties of each component.
    關聯: Ferroelectrics 332, pp.35-39
    DOI: 10.1080/00150190500323503
    顯示於類別:[物理學系暨研究所] 期刊論文

    文件中的檔案:

    檔案 描述 大小格式瀏覽次數
    0KbUnknown174檢視/開啟
    index.html0KbHTML21檢視/開啟

    在機構典藏中所有的資料項目都受到原著作權保護.

    TAIR相關文章

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