公开(公告)号：US5002913A

公开(公告)日：1991-03-26

申请号：US453853

申请日：1989-12-20

申请人： Akira Yamada ,  Susumu Kawamata ,  Hirosi Nakajo ,  Hisao Watarai

发明人： Akira Yamada ,  Susumu Kawamata ,  Hirosi Nakajo ,  Hisao Watarai

IPC分类号： C04B35/00 ,  C04B35/465 ,  H01B3/12 ,  H01P7/10

CPC分类号： C04B35/465 ,  H01B3/12 ,  H01P7/10

摘要： A dielectric ceramics for high frequencies having its dielectric constant of as high as 80 and a sufficiently high Q value (1/dielectric loss) of 1,000 or above, even in a micro-wave region, which is a compound having a structure of Sr.sub.3 Ti.sub.2 O.sub.7, and being represented by the following general formula: Sr.sub.3(1-x) Ca.sub.3x Ti.sub.2 O.sub.7 (where: 0.1

摘要翻译： 即使在具有Sr 3 Ti 2 O 7结构的化合物的微波区域中，介电常数高达80的高介电陶瓷和足够高的Q值（1 /介电损耗）为1,000以上， 并且由以下通式表示：Sr3（1-x）Ca3xTi2O7（其中：0.1