公开(公告)号：US4308571A

公开(公告)日：1981-12-29

申请号：US134281

申请日：1980-03-26

申请人： Hirayoshi Tanei ,  Akira Ikegami ,  Noriyuki Taguchi ,  Katsuo Abe ,  Hiroshi Ohtsu ,  Tokio Isogai

发明人： Hirayoshi Tanei ,  Akira Ikegami ,  Noriyuki Taguchi ,  Katsuo Abe ,  Hiroshi Ohtsu ,  Tokio Isogai

IPC分类号： C04B35/46 ,  C04B35/472 ,  C04B35/499 ,  H01B3/12 ,  H01G4/12

CPC分类号： H01G4/1263 ,  C04B35/472 ,  C04B35/499

摘要： A low temperature-sinterable dielectric composition is provided, whose sintered composition when prepared by firing a uniform mixture consisting of lead ferrotungstate, lead titanate and manganese dioxide at a temperature of not higher than 1,000.degree. C. has the general formula A.Pb(Fe.sub.2/3 W.sub.1/3).sub.1-x Ti.sub.x O.sub.3 +B.MnO.sub.2, wherein 0.005.ltoreq..times..ltoreq.0.65, A=0.95-0.9995, and B=0.0005-0.05, a relative dielectric constant of at least 2,000 at 25.degree. C., a dissipation factor (tan .delta.) of not more than 5% at 25.degree. C., and a specific resistance of at least 10.sup.9 .OMEGA..cm at 25.degree. C. Also provided is a thick film capacitor having a dielectric layer prepared from said composition.

摘要翻译： 提供了一种低温可烧结电介质组合物，其烧结组合物通过在不高于1000℃的温度下焙烧由钨酸铅，钛酸铅和二氧化锰组成的均匀混合物制备，具有通式A.Pb（Fe2 其中0.005≤x≤0.65，A = 0.95-0.9995和B = 0.0005-0.05，在25℃下的相对介电常数至少为2000。 ，在25℃下的损耗因子（tanδ）不超过5％，在25℃下的电阻率为至少为10Ω.EGEGA·cm。还提供了一种厚膜电容器，其具有由所述 组成。