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:Development of X7R type base-metal-electroded BaTiO3 capacitor materials by Co-doping of MgO/Y2O3 additives
學年94
學期1
出版(發表)日期2006/01/01
作品名稱Development of X7R type base-metal-electroded BaTiO3 capacitor materials by Co-doping of MgO/Y2O3 additives
作品名稱(其他語言)
著者Chou, Chen-chia; 陳正劭; Chen, Cheng-sao; 林諭男; Lin, I-nan; Yang, Wei-chun; Cheng, Hsiu-fung
單位淡江大學物理學系
出版者Taylor & Francis
著錄名稱、卷期、頁數Ferroelectrics 332, pp.35-39
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.
關鍵字Ferroelectric;barium titanate;multilayer ceramic capacitors;transmission electron microscopy
語言英文
ISSN0015-0193
期刊性質國內
收錄於
產學合作
通訊作者
審稿制度
國別中華民國
公開徵稿
出版型式,電子版
相關連結
Google+ 推薦功能,讓全世界都能看到您的推薦!