| 標題：Microwave dielectric properties of Ba2Ti9O20 materials prepared by reaction sintering process |
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| 學年 | 94 |
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| 學期 | 1 |
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| 出版（發表）日期 | 2006/01/01 |
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| 作品名稱 | Microwave dielectric properties of Ba2Ti9O20 materials prepared by reaction sintering process |
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| 作品名稱（其他語言） | |
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| 著者 | 張吉本; Chang, Chi-ben; Leou, Keh-chyang; Shu, Wen-yang; 林諭男; Lin, I-nan |
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| 單位 | 淡江大學物理學系 |
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| 出版者 | Elsevier |
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| 著錄名稱、卷期、頁數 | Journal of the European Ceramic Society 26(10-11), pp.2087-2091 |
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| 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. |
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| 關鍵字 | Milling;Dielectric properties;BaTiO3 and titanates;Microwave materials |
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| 語言 | 英文 |
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| ISSN | 0955-2219 |
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| 期刊性質 | 國外 |
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| 收錄於 | |
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| 產學合作 | |
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| 通訊作者 | |
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| 審稿制度 | 否 |
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| 國別 | 英國 |
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| 公開徵稿 | |
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| 出版型式 | ,電子版,紙本 |
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| 相關連結 | |
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| SDGs | |
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