公开(公告)号：US4054532A

公开(公告)日：1977-10-18

申请号：US651851

申请日：1976-01-23

申请人： Leopold Hanke ,  Guenther Hoffmann ,  Helmut Schmelz

发明人： Leopold Hanke ,  Guenther Hoffmann ,  Helmut Schmelz

IPC分类号： C04B35/46 ,  C04B35/462 ,  H01B3/12 ,  H01G4/12 ,  C04B35/50 ,  H01B3/10

CPC分类号： C04B35/462 ,  H01B3/12 ,  H01G4/12

摘要： A ceramic compound having the formula (La.sub.x A.sup.+2.sub.1-x).sub.2 (Ti.sub.x B.sup.+5.sub.1-x).sub.2 O.sub.7 wherein A.sup.+2 is a positive divalent element selected from the group consisting of Ba, Ca, Cd, Mg, Sr and mixtures thereof and B.sup.+5 is a positive pentavalent element selected from the group consisting of Sb, Mo, Nb, Ta, W and mixtures thereof and x is a numeral ranging from 0.70 to 0.99. This compound is characterized by a relatively small temperature coefficient of permittivity, a relatively high insulation resistance, a relatively low loss factor and is compatible with relatively low cost noble metals, making it useful for forming dielectric elements in monolithic multi-layer capacitor elements.

摘要翻译： 具有式（LaxA + 21-x）2（TixB + 51-x）2 O7的陶瓷化合物，其中A + 2是选自Ba，Ca，Cd，Mg，Sr及其混合物的正二价元素 B + 5为选自Sb，Mo，Nb，Ta，W及其混合物的正五价元素，x为0.70〜0.99的数值。 该化合物的特征在于介电常数的温度系数相对较小，绝缘电阻相对较高，损耗系数相对较低，并且与相对低成本的贵金属相容，因此可用于在单片多层电容器元件中形成介电元件。