教師資料查詢 | 類別: 期刊論文 | 教師: 林諭男I-NAN LIN (瀏覽個人網頁)

標題:Microwave dielectric properties of Ba2Ti9O20 materials prepared by reaction sintering process
學年94
學期1
出版(發表)日期2006/01/01
作品名稱Microwave dielectric properties of Ba2Ti9O20 materials prepared by reaction sintering process
作品名稱(其他語言)
著者張吉本; Chang, Chi-ben; Leou, Keh-chyang; Shu, Wen-yang; 林諭男; Lin, I-nan
單位淡江大學物理學系
出版者Elsevier
著錄名稱、卷期、頁數Journal of the European Ceramic Society 26(10-11), pp.2087-2091
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.
關鍵字Milling;Dielectric properties;BaTiO3 and titanates;Microwave materials
語言英文
ISSN0955-2219
期刊性質國外
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國別英國
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