基本信息:
- 专利标题： Dielectric ceramic composition
- 申请号：JP2003428381 申请日：2003-12-24
- 公开(公告)号：JP4541692B2 公开(公告)日：2010-09-08
- 发明人： 和重 大林 , 正人 山▲崎▼ , 勝也 山際 , 義人 溝口 , 裕貴 竹内
- 申请人： 日本特殊陶業株式会社
- 专利权人： 日本特殊陶業株式会社
- 当前专利权人： 日本特殊陶業株式会社
- 优先权： JP2003428381 2003-12-24
- 主分类号： C04B35/00
- IPC分类号： C04B35/00 ; C04B35/46 ; C04B35/495 ; H01B3/12
摘要：
PROBLEM TO BE SOLVED: To provide a dielectric ceramic composition having excellent ε r and Qu, and τ f which is within a practically sufficient range, and to provide its production method. SOLUTION: The dielectric ceramic composition includes an SrLa 4 Ti 4 O 15 type crystal structure and contains Sr, La, Ti, and Nb. When the composition is expressed by compositional formula: aSrO-bLaO 3/2 -cTiO 2 -dNbO 5/2 (wherein, a, b, c and d are each molar ratio, and a+b+c+d=1), a is >0 and ≤0.556, b is >0 and ≤0.571, c is >0 and ≤0.444, and d is >0 and ≤0.444. The dielectric ceramic composition is characterized in that ε r is ≥35, Qu×f (TE 011 , f is measuring frequency) is ≥10,000 GHz, and τ f is -20 to +20 ppm/°C. COPYRIGHT: (C)2005,JPO&NCIPI
公开/授权文献:
- JP2005187240A Dielectric ceramic composition and its production method 公开/授权日：2005-07-14