发明名称 Dielectric ceramic composition and electronic device
摘要 A dielectric ceramic composition, comprising a main component including barium titanate, a fourth subcomponent including an oxide of R1 (note that R1 is at least one kind selected from a first element group composed of rare-earth elements having a effective ionic radius of less than 108 pm when having a coordination number of nine), and a fifth subcomponent including an oxide of R2 (note that R2 is at least one kind selected from a second element group composed of rare-earth elements having a effective ionic radius of 108 pm to 113 pm when having a coordination number of nine). According to the composition, a dielectric ceramic composition having excellent reducing resisting property at firing, excellent temperature dependence of capacitance after firing, and improved accelerated lifetime of insulation resistance can be provided.
申请公布号 US6809052(B2) 申请公布日期 2004.10.26
申请号 US20030342283 申请日期 2003.01.15
申请人 TDK CORPORATION 发明人 HORIE YUUSAKU;NAKANO YUKIE;MASUMIYA KAORI
分类号 C01G23/00;C01G31/00;C01G45/00;C04B35/468;C04B35/622;H01G4/12;(IPC1-7):C04B35/468 主分类号 C01G23/00
代理机构 代理人
主权项
地址