English  |  正體中文  |  简体中文  |  全文筆數/總筆數 : 49521/84656 (58%)
造訪人次 : 7588992      線上人數 : 82
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/987654321/27665


    題名: Microwave dielectric properties of Ba2Ti9O20 materials prepared by reaction sintering process
    作者: 張吉本;Chang, Chi-ben;Leou, Keh-chyang;Shu, Wen-yang;林諭男;Lin, I-nan
    貢獻者: 淡江大學物理學系
    關鍵詞: Milling;Dielectric properties;BaTiO3 and titanates;Microwave materials
    日期: 2006
    上傳時間: 2009-12-31 10:35:41 (UTC+8)
    出版者: Elsevier
    摘要: We synthesized the Ba2Ti9O20 materials by direct reacting the nano-sized BaTiO3 with TiO2 powders. Pure Holland-like structure was obtained when the mixture of the nano-powders were calcined at 1100 °C. The influence of the processing method on the characteristics of the Ba2Ti9O20 powders and the related microwave dielectric properties for the sintered Ba2Ti9O20 materials was investigated. The combined high-energy-milling and ball-milling (HeM/BM) process results in pronounced improvement for the sinterability of the Ba2Ti9O20 powders such that the samples attain a density higher than 96.2% T.D. when sintered at 1200 °C/4 h. Such a sintering temperature is significantly lower than the one needed for densifying the BM-processed samples to the same high density (1350 °C/4 h). However, the HeM/BM-processed samples show pronouncedly inferior microwave quality factor (Q × f-value) to the BM-processed ones. Raman spectroscopic and SEM microstructural analyses imply that the prime factor resulting in lower Q × f-value for HeM/BM-processed samples is the incomplete development of the granular structure.
    關聯: Journal of the European Ceramic Society 26(10-11), pp.2087-2091
    DOI: 10.1016/j.jeurceramsoc.2005.09.101
    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
    0KbUnknown207檢視/開啟
    index.html0KbHTML57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