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公开(公告)号:US5600533A
公开(公告)日:1997-02-04
申请号:US478026
申请日:1995-06-07
申请人: Harunobu Sano , Yukio Hamaji
发明人: Harunobu Sano , Yukio Hamaji
CPC分类号: H01G4/1227 , H01G4/30 , Y10T29/435
摘要: A multilayer ceramic capacitor and a process for producing the same, which comprises dielectric ceramic layers, internal electrodes disposed between the dielectric ceramic layers, and an external electrode connected to the internal electrodes, the dielectric ceramic layers comprising barium titanate, a bismuth compound, and an anti-reducing agent, the internal electrodes comprising nickel or a nickel alloy. The anti-reducing agent is represented by the general formula:.alpha.MOx+.beta.RO+B.sub.2 O+(100-.alpha.-.beta.-.gamma.) SiO.sub.2 wherein MOx represents at least one members selected from the group consisting of MnO.sub.2, Li.sub.2 O, and ZnO; R represents at least one member selected from the group consisting of Mg, Sr, Ca, and Ba; and .alpha., .beta., and .gamma., each indicating a respective percentage by mole, represent numbers in the ranges of 5
摘要翻译: 一种多层陶瓷电容器及其制造方法,其包括电介质陶瓷层,设置在介电陶瓷层之间的内部电极和连接到内部电极的外部电极,所述介电陶瓷层包括钛酸钡,铋化合物和 抗还原剂,内部电极包括镍或镍合金。 抗还原剂由以下通式表示:αMOx +βRO + B2O +(100-α-β-γ)SiO 2,其中MOx表示选自MnO 2,Li 2 O和ZnO中的至少一种; R表示选自Mg,Sr,Ca和Ba中的至少一种; 和α,β和γ,各自表示相应的百分比,分别表示5 <α,10,β<60和20 <γ<35的范围内的数字。
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公开(公告)号:US5510305A
公开(公告)日:1996-04-23
申请号:US259483
申请日:1994-06-14
申请人: Harunobu Sano , Yukio Hamaji
发明人: Harunobu Sano , Yukio Hamaji
CPC分类号: C04B35/49 , H01G4/1245
摘要: A non-reducible dielectric ceramic composition consists essentially of a main component and at least one oxide selected from the group consisting of oxides of Mn, Fe, Cr, Co and Ni. The main component has a composition of the general formula: {(Ba.sub.1-o-p-q-r Sr.sub.o Ca.sub.p R1.sub.q R2.sub.r)O.sub.1+q/2+r/2 }.sub.m (Ti.sub.1-x-y Zr.sub.x Hf.sub.y)O.sub.2, where R1 is at least one element selected from the group consisting of La, Ce, Nd, Pr and Sm, R2 is at least one element selected from the group consisting of Dy, Ho, Er, Yb and Y, and o, p, q, r, x, y and m meet the following conditions: 0
摘要翻译: 不可还原的介电陶瓷组合物主要由主要成分和选自Mn,Fe,Cr,Co和Ni的氧化物中的至少一种氧化物组成。 主要组分具有以下通式的组成:{(Ba1-opq-rSroCapR1qR2r)O1 + q / 2 + r / 2} m(Ti1-x-yZrxHfy)O2,其中R1是选自 由La,Ce,Nd,Pr和Sm组成,R2是选自Dy,Ho,Er,Yb和Y中的至少一种元素,o,p,q,r,x,y和m满足 以下条件:0
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公开(公告)号:US5264402A
公开(公告)日:1993-11-23
申请号:US57252
申请日:1993-05-03
申请人: Harunobu Sano , Yukio Hamaji , Kunisaburo Tomono
发明人: Harunobu Sano , Yukio Hamaji , Kunisaburo Tomono
IPC分类号: C04B35/468 , C04B35/49 , H01B3/12 , H01G4/12 , C04B35/46
CPC分类号: C04B35/49 , C04B35/4682 , H01B3/12 , H01G4/1227
摘要: The present invention is directed to non-reducible dielectric composition consisting essentially of a main composition composed of a modified barium titanate system and additives (A) and (B) incorporated therein, said main composition consisting essentially of oxides of Ba, Ca, Ti, Zr, and Nb and having a composition represented by general formula:{(Ba.sub.1-x Ca.sub.x)O}.sub.m (Ti.sub.1-o-p Zr.sub.o Nb.sub.p)O.sub.2+p/2'wherein x, o, p and m satisfy the relationships of, ##EQU1## said additive (A) being composed at least one oxides selected from the group consisting of oxides of Mn, Fe, Cr, Co, and Ni, said additive (A) being incorporated into said main composition in an amount of 0.02 to 2.0 moles per 100 moles of said main composition in terms of respective oxides, MnO.sub.2, FeO.sub.3, Cr.sub.2 O.sub.3, CoO, and NiO, said additive (B) consisting of SiO.sub.2 and/or ZnO and incorporated into said main composition in an amount of 0.1 to 2.0 moles per 100 moles of said main composition. The composition is useful as material for monolithic ceramic capacitor.
摘要翻译: 本发明涉及不可还原的电介质组合物,其基本上由由改性钛酸钡体系组成的主要组合物和其中加入的添加剂(A)和(B)组成,所述主要组合物主要由Ba,Ca,Ti, Zr和Nb,并且具有由通式{(Ba1-xCax)O} m(Ti1-o-pZroNbp)O2 + p / 2'表示的组成,其中x,o,p和m满足关系, 所述添加剂(A)由选自氧化物中的至少一种氧化物组成,所述氧化物选自氧化物,氧化物,氧化物,氧化物,氧化物,氧化物,氧化物 的Mn,Fe,Cr,Co和Ni中的至少一种,所述添加剂(A)以相对于氧化物,MnO 2,FeO 3,Cr 2 O 3, CoO和NiO,所述添加剂(B)由SiO 2和/或ZnO组成,并且以每100摩尔所述主要com计为0.1至2.0摩尔的量加入所述主组合物中 位置。 该组合物可用作单片陶瓷电容器的材料。
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