Thin crystal base metal internal electrode multilayer ceramic sheet type capacitor medium material
Title：
Thin crystal base metal internal electrode multilayer ceramic sheet type capacitor medium material
Application Number：
 200510130476
Application Date：
 2005/12/13
Announcement Date：
 2006/07/12
Pub. Date：
Publication Number：
 1801417
Announcement Number：
Grant Date：
Granted Pub. Date：
ApplicationType：
 Invention
State/Country：
 11[China|beijing]
IPC：
 H01G 4/12, H01B 3/12, C04B 35/00
Applicant(s)：
 Tsinghua University
Inventor(s)：
 Wang Xiaohui, Chen Lei, Li Longtu, Gui Zhilun
Key Words：
 Thin crystal base metal,internal electrode, multilayer ceramic sheet type, capacitor medium material
Abstract：
 The invention discloses a medium material for fine-grained base metal inner electrode multilayer ceramic plate capacitor, which comprises: solid solution main material Bam(Ti1-xZrx)O3, and addition agent with A constituent of metal oxide and predecessor of Ba and Ca and Mn and B constituent of REE oxide and predecessor. Wherein, sintering in reducing atmosphere at 1150~1300Deg, 0.5~3¦Ìm grain size, 7600~23300 dielectric constant at room temperature, dielectric loss less than 1%, and insulation resistivity more than 1011Q.cm. The opposite capacitor with this medium material has doctor-blade thickness of medium layer less than 10¦Ìm, breakdown field strength more than 80kV/mm, and wide application future.
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