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:Effect of Y2O3/MgO Co-doping on the electrical properties of base-metal-electroded BaTiO3 materials
學年92
學期1
出版(發表)日期2004/01/01
作品名稱Effect of Y2O3/MgO Co-doping on the electrical properties of base-metal-electroded BaTiO3 materials
作品名稱(其他語言)
著者Yang, Wei-chun; Hu, Chen-ti; 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 24(6), pp.1479-1483
摘要Effect of MgO and Y2O3 additions on modifying the dielectric constant-temperature (K–T curve) properties of the base-metal-electroded BaTiO3 materials was systematically studied. The absolute value of (ΔC/C)−55 °C and (ΔC/C)125 °C can be reduced, i.e., be moved upward, by incorporating large enough concentration of MgO and Y2O3 additives into the BaTiO3, such that the K–T characteristics of the materials meet the X7R specification. The Y2O3 doping is more effective than the MgO doping in moving the (ΔC/C)−55 °C and (ΔC/C)125 °C upward, which can be attributed to the fact that Y2O3 species addition flattens the K–T curves without shifting the Curie point of the materials. However, the proportion of Y2O3 incorporated into the materials should exceed the solubility of the BaTiO3 materials such that the Y2O3 species can reside at the grain boundary region, forming a core-shell microstructure.
關鍵字Base-metal-electroded capacitor;BaTiO3;X7R
語言英文
ISSN0955-2219
期刊性質國外
收錄於
產學合作
通訊作者
審稿制度
國別英國
公開徵稿
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