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公开(公告)号：EP0118686B1
公开(公告)日：1988-08-24
申请号：EP84100608.3
申请日：1984-01-20
发明人： Matuki, Shouzo
CPC分类号： B03C1/284 , B43L19/0031 , Y10S7/901
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92.发明公开Low temperature sintered ceramic capacitor with a temperature compensating capability, and method of manufacture 失效具有温度补偿能力的低温烧结陶瓷电容器及其制造方法
公开(公告)号：EP0228667A2
公开(公告)日：1987-07-15
申请号：EP86117645.1
申请日：1986-12-18
CPC分类号： H01G4/1245 , C04B35/47 , C04B35/49
摘要： A temperature compensating capacitor of monolithic or multilayered configuration comprising a dielectric ceramic body and at least two electrodes buried therein. The ceramic body is composed of a major ingredient expressed by the formula, {(Sr 1-x Ca x )O} k (Ti 1-y Zr y )O 2 , where x, k and y are numerals in the ranges of 0.005 to 0.995 inclusive, 1.00 to 1.04 inclusive, and 0.005 to 0.100 inclusive, respectively. To this major ingredient is added a minor proportion of a mixture of lithium oxide, silicon dioxide, and one or more metal oxides selected from among barium oxide, magnesium oxide, zinc oxide, strontium oxide and calcium oxide. For the fabrication of capacitors the mixture of the above major ingredient and additives in finely divided form are formed into moldings of desired shape and size, each with at least two electrodes buried therein. The moldings and electrodes are cosintered in a reductive or neutral atmosphere and then are reheated at a lower temperature in an oxidative atmosphere. The cosintering temperature can be so low that nickel or like base metal can be employed as the electrode material.
摘要翻译： 一种整体式或多层结构的温度补偿电容器，包括一个介电陶瓷体和埋入其中的至少两个电极。 陶瓷体由以下式表示的主要成分组成：{（Sr1-xCax）O} k（Ti1-yZry）O2，其中x，k和y的数值范围为0.005至0.995，包括1.00至1.04 包括在内，并且分别为0.005到0.100。 向该主要成分中加入少量比例的氧化锂，二氧化硅和一种或多种选自氧化钡，氧化镁，氧化锌，氧化锶和氧化钙的金属氧化物的混合物。 为了制造电容器，将上述主要成分和细分形式的添加剂的混合物制成具有所需形状和尺寸的模制品，每个模制品至少埋有两个电极。 将模制品和电极在还原性或中性气氛中共染料，然后在氧化气氛中在较低温度下再加热。 余氯的温度可以低到可以使用镍或类似的基体金属作为电极材料。
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93.发明公开Low temperature sintered ceramic capacitor with high DC breakdown voltage, and method of manufacture 失效具有高直流破坏电压的低温烧结陶瓷电容器及其制造方法
公开(公告)号：EP0187960A3
公开(公告)日：1986-08-06
申请号：EP85115816
申请日：1985-12-12
发明人： Wada, Takeshi , Kishi, Hiroshi , Murai, Shunji , Fukui, Masami
CPC分类号： H01G4/1245 , C04B35/4682
摘要： A monolithic ceramic capacitor having a higher DC breakdown voltage per unit thickness of the dielectric ceramic body than heretofore. The major ingredient of the ceramic is expressed as {(Ba 1-x-y Ca x SR y )O} k (Ti 1-z =Zr z )O 2 , where x, y, z and k are numerals in the ranges specified herein. To this major ingredient is added a minor proportion of a mixture of boric oxide, silicon dioxide, and lithium oxide. The relative proportions of these additives are also specified. For the fabrication of capacitors having dielectric bodies of the above composition, the moldings of the mixture of the major ingredient and additives in the specified proportions are sintered to maturity in a reductive or neutral atmosphere and then reheated at a lower temperature in an oxidative atmosphere. The sintering temperature can be so low (1000-1200°C.) that the moldings can be cosintered with base metal electrodes buried therein.
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94.发明授权
公开(公告)号：EP0059851B1
公开(公告)日：1985-10-09
申请号：EP82101008.9
申请日：1982-02-11
CPC分类号： H01G4/0085 , B22F2998/00 , C22C32/0089 , H01B1/16 , H01C17/286 , B22F1/0048
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95.发明公开Low temperature sintered ceramic materials for use in solid dielectric capacitors or the like, and method of manufacture 失效陶瓷材料具有低的烧结温度为固体电介质电容器和它们的制备方法。
公开(公告)号：EP0155363A2
公开(公告)日：1985-09-25
申请号：EP84114401.7
申请日：1984-11-28
CPC分类号： H01G4/2325 , C04B35/4682 , H01G4/1227
摘要： @ A ceramic composition capable of sintering at a sufficiently low temperature to enable the use of a low cost base metal as the electrode material in the fabrication of capacitors. The major ingredient of the composition is expressed as Ba k-x M x O k TiO 2 , where M is one or more of magnesium, zinc, strontium, and calcium, and where k, and x are numerals in the ranges of 1.00 to 1.04, and 0.02 to 0.05, respectively. To this major ingredient is added a minor proportion of a mixture of boron oxide and at least one of barium oxide, magnesium oxide, zinc oxide, strontium oxide, and calcium oxide. For the fabrication of coherently bonded bodies of this composition, as for use as the dielectric bodies of capacitors, the moldings of the mixture of the major ingredient and additive in finely divided form are sintered in a reductive or neu-tral atmosphere and then reheated at a lower temperature in an oxidative atmosphere. The sintering temperature can be so low (typically from 1050° to 1200° C.) that the moldings can be co-sintered with base metal electrodes buried therein without difficulties encountered heretofore.
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96.发明公开Semiconductive ceramic materials with a voltage-dependent nonlinear resistance 失效具有电压依赖性非线性电阻的半导体陶瓷材料
公开(公告)号：EP0101824A3
公开(公告)日：1984-10-03
申请号：EP83106305
申请日：1983-06-28
摘要： Ceramic materials suitable for use in varistors, enabling the same to function not only as such but also as capacitors. The ceramic materials comprise a major proportion of SrTi0 3 , the balance being: (1) at least one of Nb 2 O 5 , Ta 2 O 5 , W0 3 . La 2 O 3 , Ce0 2 , Nd 2 O 3 . Y 2 O 3 , Pr 6 O 11 , Sm 2 O 3 , E U2 0 3 . and Dy 2 O 3 , for making the materials semiconductive; (2) Na 2 O, for making surge-proof the varistors made from the ceramic materials and for improving their nonlinearity coefficients; and (3) Al 2 O 3 , for improving the temperature dependences of the varistor voltages, as well as nonlinearity coefficients, of the varistors. Optionally the ceramic materials may further contain one or more of Ag 2 O, CuO, MnO 2 , and SiO 2 , for still higher nonlinearity coefficients. Containing Al 2 O 3 in proportions ranging from 0.01 to 1.50 mole parts with respect to 100 mole parts of SrTi0 3 , the ceramic compositions make possible the provision of varistors having varistor voltages that hardly change in a temperature range as wide as, for example from -40° to +120°C.
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97.发明公开Dielectric ceramic materials with insulated boundaries between crystal grains, and process for preparation 失效晶体颗粒之间具有绝缘边界的电介质陶瓷材料及其制备方法
公开(公告)号：EP0076456A3
公开(公告)日：1984-07-25
申请号：EP82108979
申请日：1982-09-28
CPC分类号： H01G4/1281 , C04B35/47
摘要： A dielectric ceramic material composed of primary and secondary ingredients forming in combination a polycrystalline ceramic proper, and of insulating substances diffused throughout the intergranular boundaries of the ceramic proper for an increase in apparent relative dielectric constant. The primary ingredients comprise, in relative proportions, 90.68-99.80 wt. % SrTi0 3 , 0.07-5.32 wt. % of at least one of Nb 2 0 5 , W0 3 and Ta 2 O 5 , and 0.02-4.00 wt. % of at least one of GeO 2 , ZnO and CuO. The secondary ingredients comprise 0.02-0.10 wt. part Si0 2 and 0.01-0.03 wt. part Al 2 O 3 with respect to 100 wt. parts of the primary ingredients, with the weight ratio of Si0 2 to Al 2 O 3 being from 1.5 to 5.0. The insulating substances comprise 0.02-2.90 wt. % PbO, 0.10-4.38 wt. % Bi 2 O 3 , and 0.001-0.18 wt. % B 2 0 3 with respect to the total weight of the primary and the secondary ingredients. In the fabrication of bodies of the ceramic the mixture of the insulating substances is coated or otherwise layered on polycrystalline ceramic bodies prepared from the primary and secondary ingredients. The coated ceramic bodies are then heated to cause diffusion of the insulating substances throughout their intergranular boundaries.
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98.发明公开Dielectric ceramic materials with insulated boundaries between crystal grains, and process for preparation 失效的介电陶瓷材料与绝缘晶界上的层，以及它们的制备方法。
公开(公告)号：EP0076456A2
公开(公告)日：1983-04-13
申请号：EP82108979.4
申请日：1982-09-28
CPC分类号： H01G4/1281 , C04B35/47
摘要： A dielectric ceramic material composed of primary and secondary ingredients forming in combination a polycrystalline ceramic proper, and of insulating substances diffused throughout the intergranular boundaries of the ceramic proper for an increase in apparent relative dielectric constant. The primary ingredients comprise, in relative proportions, 90.68-99.80 wt. % SrTi0 3 , 0.07-5.32 wt. % of at least one of Nb 2 0 5 , W0 3 and Ta 2 O 5 , and 0.02-4.00 wt. % of at least one of GeO 2 , ZnO and CuO. The secondary ingredients comprise 0.02-0.10 wt. part Si0 2 and 0.01-0.03 wt. part Al 2 O 3 with respect to 100 wt. parts of the primary ingredients, with the weight ratio of Si0 2 to Al 2 O 3 being from 1.5 to 5.0. The insulating substances comprise 0.02-2.90 wt. % PbO, 0.10-4.38 wt. % Bi 2 O 3 , and 0.001-0.18 wt. % B 2 0 3 with respect to the total weight of the primary and the secondary ingredients. In the fabrication of bodies of the ceramic the mixture of the insulating substances is coated or otherwise layered on polycrystalline ceramic bodies prepared from the primary and secondary ingredients. The coated ceramic bodies are then heated to cause diffusion of the insulating substances throughout their intergranular boundaries.
摘要翻译： 的介电陶瓷材料组合形成的多晶陶瓷正确，以及绝缘扩散在整个陶瓷正确的晶间界的物质用于向在表观相对介电常数增加的初级和次级成分组成。 主成分包括，在相对比例，90.68-99.80重量％的钛酸锶，0时07分至5点32重量％的Nb2O5，WO3和Ta2O5中的至少一个和0点02中至4:00重量％的GeO 2，ZnO和CuO的中的至少一个中 ， 二次成分包括0时02分至0点10重量份的SiO 2和0点01到0时03分重量份氧化铝，相对于100重量％的主成分的部分，与所述重量比的SiO 2对Al2O3为1.5至5.0。 绝缘物质包含0.02-2.90重量％的PbO，0时10至4点38重量％的Bi2O3，和0.001-0.18％（重量）B 2 O 3相对于所述初级和次级成分的总重量计。 在绝缘物质的陶瓷混合物的机构的制造被涂覆或从初级和次级成分制备的多晶陶瓷体，否则分层。 然后将涂覆的陶瓷体加热，使绝缘性物质的扩散在其整个晶间的边界。
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99.发明公开Semiconductive ceramic compositions with a nonlinear volt-ampere characteristic, and process for preparing coherent bodies of such compositions 失效具有非线性电压特性的半导体陶瓷组合物，以及用于制备这些组合物的相容体的方法
公开(公告)号：EP0044981A3
公开(公告)日：1983-03-30
申请号：EP81105268
申请日：1981-07-07
摘要： Ceramic materials suitable for use in varistors, enabling the same to function both as such and as capacitors. The ceramic compositions comprise a major proportion of SrTiO 3 , the balance being (1) one or more of Nb 2 O 5 , Ta 2 O 5 , W0 3 , La 2 O 3 , CeO 2 , Nd 2 0 3 , Pr 6 O 11 , Dy 2 0 3 , Y 2 O 3 , and Sm 2 0 3 , for making the compositions semiconductive, and (2) one or more of V 2 O 5 , Cr 2 O 3 , CuO, Cu 2 O, MoO 3 , and MnO 2 , for improving the nonlinear volt-ampere characteristic of the compositions. If desired, for improving the coherency of bodies molded from the composition, there can be added one or more of GeO 2 , ZnO, B 2 0 3 , and PbO. For use as varistors the mixture of the above ingredients, all in finely divided form and made coherent with a binder, is molded into desired shape under pressure. The moldings are first fired in a nonoxidative atmosphere and then further heated in an oxidative atmosphere. Electrodes can be formed as by silver painting.
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100.发明公开An electroconductive paste to be baked on ceramic bodies to provide capacitors, varistors or the like 失效导电膏，用于在陶瓷体烘焙生产电容器，压敏电阻等
公开(公告)号：EP0059852A1
公开(公告)日：1982-09-15
申请号：EP82101009.7
申请日：1982-02-11
CPC分类号： H01G4/0085 , B22F2998/00 , C22C32/0089 , H01B1/16 , H01C17/286 , B22F1/0048
摘要： An electroconductive paste consists essentially of 100 parts by weight of zinc in finely divided form, from about 0.01 to 10.00 parts by weight of a glass frit such as, typically, that of PbO-B 2 0 3 -SiO 2 composition, from about 0.01 to 14.99 parts by weight of an organotitanium compound such as tetrakisstearoxytitanium, and a vehicle such as alpha-terpineol containing ethylcellulose as an organic binder, for pasting the mixture of the zinc powder, glass frit and organotitanium compound. The paste may contain an additive or additives such as the oxides of some metallic elements. By being fired on ceramic bodies at a temperature above the melting point of zinc, the paste forms conductors or electrodes of ceramic capacitors, varistors or the like. The capacitors or varistors having their conductors or electrodes thus prepared from the zinc paste are approximately equivalent in electrical and mechanical properties to those having their conductors or electrodes fabricated from a conventional silver paste.
摘要翻译： 在导电膏besteht实质上的100质量份的细碎形式锌的重量计，约12点01分至10点00重量份的玻璃料：如，典型地，通过确实的PbO-B2O3-的SiO 2组成的，约0时01至14.99份 重量有机钛化合物：如tetrakisstearoxytitanium，和车辆搜索条件为alphaterpineol包含乙基纤维素作为有机粘结剂，粘贴锌粉末，玻璃料和有机钛化合物的混合物。 该糊可以含有一种或多种添加剂：如一些金属元素的氧化物。 通过被在锌的熔点以上的温度下对陶瓷体烧结，浆料形式的导体或陶瓷电容器的电极，可变电阻或类似物。 电容器或变阻器具有它们的导体或电极由此从锌糊制备是在电气和机械性能，以那些具有它们的导体或电极从常规银膏制成大致相等。
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