頁籤選單縮合
| 題 名 | Processing and Characterization of Microwave Dielectric Ceramics and Thin Films-Nd[feaf](Ti2/3Al1/3)[feb0]O□[febe]δ and (Ba[90b0]Sr[90b1])TiO[feb0] |
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| 作 者 | Wang,Hong-wen; | 書刊名 | 淡江理工學刊 |
| 卷 期 | 5:2 民91.06 |
| 頁 次 | 頁113-116 |
| 分類號 | 345 |
| 關鍵詞 | Nd[feaf](Ti2/3Al1/3)[feb0]O□; (Ba[90b0]Sr[90b1])TiO[feb0]; Microwave dielectric ceramic; Thin film; |
| 語 文 | 英文(English) |
| 英文摘要 | Reactive powders of stoichiometry Nd₂(Ti⅔Al⅓)₃O□ and thin films of (Ba[90b0]Sr[90b1])TiO₃ have been prepared by the conventional mixed-oxide method and the metal-organic deposition method, respectively. The corresponded phases after calcination and sintering are investigated by XRD diffraction. Single phase of Nd₂(Ti⅔Al⅓)₃O□ could be only obtained by sintering over 1400℃ for 4 h. (Ba[90b0]Sr[90b1])TiO₃ thin film well crystallizes at as low as 570℃ after Au-doping by MOD method. Nd₂(Ti⅔Al⅓)₃O□ posses excellent temperature stability of frequency. Substitution of Nd by Ca, Sr, or Pb can also readily form the single phase (Nd,X)₂Ti₃O□, but inferior microwave properties are observed. The leakage current of BST thin films are found to be reduced by doping Au or codoping Mg/La or Mg/Nb. Mg/La and Mg/Nb reduces leakage current even more when annealing is performed at high temperatures. |
本系統中英文摘要資訊取自各篇刊載內容。