无机材料学报

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中低温烧结的温度稳定型Ba1-xCdxTiO3介电材料

齐建全; 李雯; 王永力; 桂治轮; 李龙土   

  1. 清华大学材料系新型陶瓷与精细工艺国家重点实验室 北京 100084
  • 收稿日期:2001-09-28 修回日期:2001-12-06 出版日期:2002-11-20 网络出版日期:2002-11-20

Ba1-xCdxTiO3 Based Temperature-stable Dielectrics Sintered at Medium-low Temperature

QI Jian-Quan; LI Wen; WANG Yong-Li; GUI Zhi-Lun; LI Long-Tu   

  1. Department of Material Science and Engineering; Tsinghua University; Beijing 100084; China
  • Received:2001-09-28 Revised:2001-12-06 Published:2002-11-20 Online:2002-11-20

摘要: 温度稳定型钛酸钡基介电材料具有良好的性能,然而做为MLCs瓷料时,烧结温度偏高.用固溶体Ba1-xCdxTiO3替代BaTiO3做为基料,可以有效地降低烧结温度,制备符合X7R标准的MLCs瓷料,获得较高的室温介电常数.

关键词: CdO, BaTiO3, X7R, MLCs

Abstract: The BaTiO3 based temperature stable dielectric materials have been sintered at relevant high temperature to make MLCs. In this study, based on Ba1-xCdxTiO3 to replace BaTiO3, the sintering temperature was decreased efficiently. The MLCs materials meeting EIA X7R specifications were obtained, which were sintered as low as 1150℃ and had relevant high dielectric constant at room temperature.

Key words: CdO, BaTiO3, X7R, MLCs

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