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公开(公告)号：US4724511A
公开(公告)日：1988-02-09
申请号：US921162
申请日：1986-10-20
申请人： John H. Alexander , Dawn A. Jackson
发明人： John H. Alexander , Dawn A. Jackson
IPC分类号： C04B35/486 , C04B35/495 , C04B35/497 , H01G4/12 , C04B35/46 , H01G7/00
CPC分类号： H01G4/1263 , C04B35/486 , C04B35/495 , C04B35/497 , Y10T29/435
摘要： A dielectric composition comprising a base of non-stoichiometric lead magnesium niobate, non-stoichiometric lead zinc niobate, lead zirconate, titanium dioxide and bismuth titanate, together with a further oxide additive, in particular nickel oxide, manganese oxide, cobalt oxide or a rare earth, has a low firing temperature (900.degree.-1000.degree. C.), high dielectric constant (up to 14,750), low tan .delta.(
摘要翻译： 一种介电组合物，其包含非化学计量的铌酸铅镁，非化学计量的铅锌铌酸盐，锆酸铅，二氧化钛和钛酸铋，以及另外的氧化物添加剂，特别是氧化镍，氧化锰，氧化钴或稀有金属 具有低烧结温度（900°-1000℃），高介电常数（高达14,750），低tanδ（20℃时<2.5％）和Z5U电容温度系数。
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公开(公告)号：US4625258A
公开(公告)日：1986-11-25
申请号：US706790
申请日：1985-02-28
申请人： Dawn A. Jackson
发明人： Dawn A. Jackson
CPC分类号： H01G4/1254 , C04B35/497
摘要： A dielectric composition comprising a ternary system of non-stoichiometric lead magnesium niobate, non-stoichiometric lead zinc niobate and non-stoichiometric lead iron niobate up to 10 wt % PbO may be added to the ternary mix. Compositions with firing temperatures in the range 950.degree. to 1040.degree. C., have dielectric constants in the range 13,900-22,100 making the composition particularly suitable for high silver content multilayer ceramic capacitors.
摘要翻译： 包含非化学计量的铌酸铅镁，非化学计量的铅锌铌酸盐和非化学计量的铅铌酸铅至多10重量％PbO的三元体系的电介质组合物可以加入到三元混合物中。 焙烧温度在950°至1040℃范围内的组成物的介电常数在13,900-22,100范围内，使组合物特别适用于高含量的多层陶瓷电容器。
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公开(公告)号：US4670815A
公开(公告)日：1987-06-02
申请号：US892801
申请日：1986-08-01
申请人： John H. Alexander , Dawn A. Jackson
发明人： John H. Alexander , Dawn A. Jackson
CPC分类号： C04B35/497 , H01G4/1254
摘要： A dielectric composition including a ternary system comprising non-stoichiometric lead magnesium niobate, non-stoichiometric lead zinc niobate and non-stoichiometric lead iron niobate, and a small amount of one or more oxide additives which serves to reduce the tan .delta. value in comparison with the ternary system alone. The one or more additives may be chosen from the group consisting of nickel oxide, stoichiometric lead nickel niobate, ceric oxide, lead oxide, zirconium oxide, silver oxide, manganese dioxide, lanthanum oxide and cobalt oxide. Compositions with firing temperatures in the range 950.degree. to 1100.degree. C. have dielectric constants in the range 10700 to 16600 (at 20.degree. C.) making the composition particularly useful for high silver content multilayer ceramic capacitors.
摘要翻译： 包含非化学计量的铌酸铅镁，非化学计量的铅锌铌酸盐和非化学计量的铅铌酸铅的三元体系的电介质组合物和少量一种或多种氧化物添加剂，其用于将tanδ值与 三元系统单独。 一种或多种添加剂可以选自氧化镍，化学计量的铌酸铅，氧化铈，氧化铅，氧化锆，氧化银，二氧化锰，氧化镧和氧化钴。 烧成温度在950℃至1100℃范围内的组成物的介电常数范围为10700至16600（在20℃），使组合物对于高含量的多层陶瓷电容器尤其有用。
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公开(公告)号：US4536821A
公开(公告)日：1985-08-20
申请号：US584343
申请日：1984-02-28
CPC分类号： H01G4/1263 , C04B35/497 , H01G4/12 , H01G4/1254 , Y10T29/435
摘要： A dielectric composition, particularly suitable for the manufacture of ceramic capacitors, comprising lead magnesium niobate and lead zinc niobate. These may be additives, such as one or more oxide additives chosen from the group comprising silica, manganese dioxide, zinc oxide, nickel oxide, alumina, ceric oxide, lanthanum oxide and tungsten oxide, gallium oxide, titanium dioxide and lead oxide, or additives such as bismuth stannate. The compositions can be fired at temperatures between 980.degree. and 1075.degree. C. so that in the case of multilayer ceramic capacitors high silver content internal electrodes can be used. Higher dielectric constants, for example 9000 to 16,300, of the fired ceramics than conventional ceramics are obtained, thus permitting capacitor device size reduction.
摘要翻译： 特别适用于制造陶瓷电容器的电介质组合物，包括铌酸铅镁和铌酸铅锌。 这些可以是添加剂，例如一种或多种选自二氧化硅，二氧化锰，氧化锌，氧化镍，氧化铝，氧化铈，氧化镧和氧化钨，氧化镓，二氧化钛和氧化铅的组分的氧化物添加剂，或添加剂 如锡酸铋。 组合物可以在980℃和1075℃之间的温度下焙烧，因此在多层陶瓷电容器的情况下可以使用高含量的内部电极。 获得比常规陶瓷更高的介电常数，例如9000至16300的焙烧陶瓷，从而允许电容器尺寸减小。
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