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公开(公告)号:US20080297979A1
公开(公告)日:2008-12-04
申请号:US12071470
申请日:2008-02-21
申请人: Sanshiro Aman , Takashi Kojima , Mari Miyauchi , Masakazu Hosono , Dan Sakurai , Kosuke Takano , Nobuto Morigasaki
发明人: Sanshiro Aman , Takashi Kojima , Mari Miyauchi , Masakazu Hosono , Dan Sakurai , Kosuke Takano , Nobuto Morigasaki
CPC分类号: H01G4/1227 , C04B35/49 , C04B35/62685 , C04B35/638 , C04B2235/3203 , C04B2235/3206 , C04B2235/3215 , C04B2235/3217 , C04B2235/3224 , C04B2235/3225 , C04B2235/3227 , C04B2235/3229 , C04B2235/3236 , C04B2235/3241 , C04B2235/3248 , C04B2235/3262 , C04B2235/3272 , C04B2235/3277 , C04B2235/3279 , C04B2235/3287 , C04B2235/3409 , C04B2235/3418 , C04B2235/5445 , C04B2235/6025 , C04B2235/6562 , C04B2235/6565 , C04B2235/6567 , C04B2235/6582 , C04B2235/6584 , C04B2235/6588 , C04B2235/663 , C04B2235/768 , C04B2235/79 , H01G4/30
摘要: A dielectric ceramic composition comprising BamTiO2+m (note that “m” satisfies 0.99≦m≦1.01) and BanZrO2+n (note that “n” satisfies 0.99≦n≦1.01), an oxide of Mg, an oxide of R (note that R is at least one selected from Sc, Y, La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb and Lu), an oxide of at least one element selected from Mn, Cr, Co and Fe, and an oxide of at least one element selected from Si, Li, Al, Ge and B. With respect to 100 moles of said BamTiO2+m, 35 to 65 moles of BanZrO2+n, 4 to 12 moles of an oxide of Mg, 4 to 15 moles of an oxide of R, 0.5 to 3 moles of an oxide of Mn, Cr, Co and Fe, and 3 to 9 moles of an oxide of Si, Li, Al, Ge and B are included therein.
摘要翻译: 包含BamTiO 2 + m(注意“m”满足0.99 <= m <= 1.01)和BanZrO2 + n(注意“n”满足0.99 <= n <= 1.01)的介电陶瓷组合物,Mg的氧化物,氧化物 的R(注意,R为选自Sc,Y,La,Ce,Pr,Nd,Pm,Sm,Eu,Gd,Tb,Dy,Ho,Er,Tm,Yb和Lu中的至少一种) 选自Mn,Cr,Co和Fe中的至少一种元素,以及选自Si,Li,Al,Ge和B中的至少一种元素的氧化物。对于100摩尔所述BamTiO 2 + m,35至65摩尔 BanZrO 2 + n,4〜12摩尔Mg的氧化物,4〜15摩尔的R的氧化物,0.5〜3摩尔的Mn,Cr,Co和Fe的氧化物,以及3〜9摩尔的Si的氧化物 ,Li,Al,Ge和B。
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公开(公告)号:US20080226944A1
公开(公告)日:2008-09-18
申请号:US12071465
申请日:2008-02-21
申请人: Sanshiro Aman , Takashi Kojima , Mari Miyauchi , Masakazu Hosono , Dan Sakurai , Kosuke Takano , Nobuto Morigasaki
发明人: Sanshiro Aman , Takashi Kojima , Mari Miyauchi , Masakazu Hosono , Dan Sakurai , Kosuke Takano , Nobuto Morigasaki
IPC分类号: B32B18/00 , C04B35/468
CPC分类号: H01G4/1227 , C04B35/4682 , C04B35/6262 , C04B35/62645 , C04B2235/3203 , C04B2235/3206 , C04B2235/3215 , C04B2235/3217 , C04B2235/3224 , C04B2235/3225 , C04B2235/3227 , C04B2235/3229 , C04B2235/3236 , C04B2235/3241 , C04B2235/3244 , C04B2235/3248 , C04B2235/3262 , C04B2235/3272 , C04B2235/3275 , C04B2235/3287 , C04B2235/3409 , C04B2235/3418 , C04B2235/5436 , C04B2235/5445 , C04B2235/79 , H01G4/30
摘要: A dielectric ceramic composition comprises a main component including BaTiO3, a first subcomponent including BaZrO3, a second subcomponent including an oxide of Mg, a third subcomponent including an oxide of rare earth, a fourth subcomponent including an oxide of at least one element selected from Mn, Cr, Co and Fe, and a fifth subcomponent including an oxide of at least one element selected from Si, Al, Ge, B and Li. At least a part of dielectric particles constituting the dielectric ceramic composition comprises a surface diffusion structure comprised of a central layer and a diffusion layer therearound. CR and CRmax, respectively defined as a concentration of said “R” in a proximity point to a boundary face of the dielectric particle and a maximum concentration of the “R” in the diffusion layer, satisfy a relation of CRmax/CR>1. Also, CM and CMmax, respectively defined as a concentration of said Mg in a proximity point to a boundary face of the dielectric particle and a maximum concentration of Mg in the diffusion layer, satisfy a relation of CMmax/CM>1.
摘要翻译: 电介质陶瓷组合物包括主要组分,包括BaTiO 3 N 3,第一副成分,包括BaZrO 3 3,第二次要组分,包括Mg的氧化物,第三副成分,包括稀有氧化物 包括选自Mn,Cr,Co和Fe中的至少一种元素的氧化物的第四副成分,以及包含选自Si,Al,Ge,B和Li中的至少一种元素的氧化物的第五副成分。 构成电介质陶瓷组合物的介电颗粒的至少一部分包括由其周围的中心层和扩散层组成的表面扩散结构。 分别定义为在电介质颗粒的界面的接近点处的所述“R”的浓度和扩散层中的“R”的最大浓度的CR和CRmax满足CRmax / CR> 1的关系。 此外,CM和CMmax分别定义为在介电粒子的接近点附近的Mg的浓度和扩散层中的Mg的最大浓度,满足CMmax / CM> 1的关系。
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公开(公告)号:US08008221B2
公开(公告)日:2011-08-30
申请号:US12314144
申请日:2008-12-04
申请人: Sanshiro Aman , Mari Miyauchi , Hideaki Seki
发明人: Sanshiro Aman , Mari Miyauchi , Hideaki Seki
CPC分类号: C04B35/49 , C04B35/4682 , C04B35/62685 , C04B35/638 , C04B2235/3203 , C04B2235/3206 , C04B2235/3217 , C04B2235/3224 , C04B2235/3225 , C04B2235/3227 , C04B2235/3229 , C04B2235/3236 , C04B2235/3241 , C04B2235/3248 , C04B2235/3262 , C04B2235/3272 , C04B2235/3277 , C04B2235/3287 , C04B2235/3409 , C04B2235/3418 , C04B2235/5445 , C04B2235/656 , C04B2235/6562 , C04B2235/6565 , C04B2235/6567 , C04B2235/6582 , C04B2235/6584 , C04B2235/6588 , C04B2235/663 , C04B2235/785 , C04B2235/79 , C04B2235/85 , H01G4/1227 , H01G4/30
摘要: A dielectric ceramic composition of the present invention comprises; BamTiO2+m (note that, m is 0.99≦m≦1.01), and BanZrO2+n (note that, n is 0.99≦n≦1.01); wherein said dielectric ceramic composition consists of plurality of dielectric particles and a grain boundary phase existing between said dielectric particles adjacent to each other, when said dielectric particle having BamTiO2+m as a main component is set to a first dielectric particle, said dielectric particle having BanZrO2+n as a main component is set to a second dielectric particle, an average crystal diameter of said first dielectric particle is set to D1 (μm), and an average crystal diameter of said second dielectric particle is set to D2 (μm), then a ratio (D2/D1) of said D2 with respect to said D1 is 0.04 to 0.33, said D2 is 0.02 to 0.25 μm, and in said dielectric ceramic composition a ratio of the total number of said second dielectric particle with respect to the total number of said first dielectric particle is 0.10 to 2. The present invention is to provide the dielectric ceramic composition suitable for the medium-high voltage application used at a high rated voltage (for example, 100V or more).
摘要翻译: 本发明的电介质陶瓷组合物包括: (注意,m为0.99&nlE; m&nlE; 1.01)和BanZrO2 + n(注意,n为0.99&nlE; n&nlE; 1.01); 其中所述电介质陶瓷组合物由多个电介质颗粒和存在于所述相互邻近的所述电介质颗粒之间的晶界相组成,当所述具有BamTiO 2 + m作为主要成分的电介质颗粒被设置为第一电介质颗粒时,所述电介质颗粒具有 将BanZrO2 + n作为主要成分设置在第二电介质粒子上,将所述第一电介质粒子的平均晶体直径设定为D1(μm),将所述第二电介质粒子的平均晶体直径设定为D2(μm) 那么所述D2相对于所述D1的比率(D2 / D1)为0.04至0.33,所述D2为0.02至0.25μm,并且在所述介电陶瓷组合物中,所述第二电介质颗粒的总数相对于 所述第一电介质颗粒的总数为0.10〜2。本发明提供适用于在高额定电压下使用的中高压应用的电介质陶瓷组合物( 例如100V以上)。
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公开(公告)号:US07790645B2
公开(公告)日:2010-09-07
申请号:US12232875
申请日:2008-09-25
申请人: Hideaki Seki , Sanshiro Aman , Mari Miyauchi
发明人: Hideaki Seki , Sanshiro Aman , Mari Miyauchi
CPC分类号: H01G4/1227 , C04B35/4682 , C04B35/486 , C04B35/49 , C04B35/62685 , C04B2235/3203 , C04B2235/3206 , C04B2235/3215 , C04B2235/3217 , C04B2235/3224 , C04B2235/3225 , C04B2235/3227 , C04B2235/3229 , C04B2235/3236 , C04B2235/3248 , C04B2235/3249 , C04B2235/3251 , C04B2235/3262 , C04B2235/3272 , C04B2235/3277 , C04B2235/3287 , C04B2235/3409 , C04B2235/3418 , C04B2235/5445 , C04B2235/6562 , C04B2235/6565 , C04B2235/6584 , C04B2235/663 , C04B2235/79 , C04B2235/80 , H01G4/30
摘要: The present invention relates to a dielectric ceramic composition comprising BaTiO3, BaZrO3, and the oxide of R wherein, when A is the content of BaZrO3, and C is the content of the oxide R, with respect to 100 moles of BaTiO3, then A is 40≦A≦65 moles and C is 4≦C≦15 moles; plus said dielectric composition satisfies the equation (1) and (2). The present invention can provide a dielectric ceramic composition good in IR lifetime, and capable to be suitably used for medium-high voltage which has a high rated voltage (for example, 100V or more). 0.0038A−0.147≦B≦0.004A+0.04 Equation (1) (note that, B is a ratio of the X-ray diffraction maximum intensity among peaks of said BaZrO3 with respect to the X-ray diffraction maximum intensity among peaks of said BaTiO3). 0.0041C−0.0115≦D≦0.0046C+0.084 Equation (2) (note that, D is a ratio of the X-ray diffraction maximum intensity among peaks of the oxide of said R with respect to the X-ray diffraction maximum intensity among peaks of said BaTiO3).
摘要翻译: 本发明涉及包含BaTiO 3,BaZrO 3和R的氧化物的电介质陶瓷组合物,其中当A为BaZrO 3的含量且C为氧化物R的含量时,相对于100摩尔BaTiO 3,A为 40&nlE; A&nlE; 65摩尔,C为4,n为1; C 15; 15摩尔; 加上所述电介质组合物满足等式(1)和(2)。 本发明可以提供具有良好的IR寿命的电介质陶瓷组合物,并且能够适用于具有高额定电压(例如100V以上)的中高电压。 0.0038A-0.147&nlE; B&nlE; 0.004A + 0.04等式(1)(注意,B是所述BaZrO 3的峰之间的X射线衍射最大强度与X射线衍射最大强度之间的X射线衍射最大强度之比 说BaTiO3)。 0.0041C-0.0115&nlE; D&nlE; 0.0046C + 0.084等式(2)(注意,D是所述R的氧化物的峰的X射线衍射最大强度与X射线衍射最大强度之比 在所述BaTiO 3的峰中)。
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公开(公告)号:US06785121B2
公开(公告)日:2004-08-31
申请号:US09865575
申请日:2001-05-29
申请人: Yukie Nakano , Shunichi Yuri , Mari Miyauchi , Daisuke Iwanaga
发明人: Yukie Nakano , Shunichi Yuri , Mari Miyauchi , Daisuke Iwanaga
IPC分类号: H01G406
CPC分类号: H01G4/12 , H01G4/232 , H01G4/30 , Y10T29/417
摘要: A multilayer ceramic capacitor having internal electrode layers and dielectric layers with dielectric particles is disclosed. An average particle diameter of the dielectric particles, when measured parallel with the direction of the internal electrode layers, is larger than a thickness of the dielectric layer. A ratio (R/d) between the average particle diameter (R) and the thickness (d) of the dielectric layer is 1
摘要翻译: 公开了一种具有内部电极层和具有介电颗粒的电介质层的多层陶瓷电容器。 当与内部电极层的方向平行地测量时,电介质颗粒的平均粒径大于介电层的厚度。 介电层的平均粒径(R)和厚度(d)之比(R / d)为1
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公开(公告)号:US20090246508A1
公开(公告)日:2009-10-01
申请号:US12385052
申请日:2009-03-30
申请人: Kosuke Takano , Mari Miyauchi , Nobuto Morigasaki , Hideaki Seki , Makoto Maeda , Takahiro Yamada
发明人: Kosuke Takano , Mari Miyauchi , Nobuto Morigasaki , Hideaki Seki , Makoto Maeda , Takahiro Yamada
IPC分类号: B32B18/00 , C04B35/468
CPC分类号: C04B35/4682 , B82Y30/00 , C04B35/6264 , C04B35/638 , C04B2235/3203 , C04B2235/3206 , C04B2235/3215 , C04B2235/3224 , C04B2235/3225 , C04B2235/3239 , C04B2235/3241 , C04B2235/3251 , C04B2235/3258 , C04B2235/3262 , C04B2235/3418 , C04B2235/3445 , C04B2235/3454 , C04B2235/5445 , C04B2235/5454 , C04B2235/6582 , C04B2235/6584 , C04B2235/6588 , C04B2235/663 , C04B2235/785 , H01G4/1227 , H01G4/30
摘要: A dielectric ceramic composition comprises, a main component including barium titanate, a first subcomponent including MgO, a second subcomponent including sintering aids of SiO2 compound, a third subcomponent including at least one of V2O5, Nb2O5 and WO3, a fourth A subcomponent including RA oxide (note that, RA is at least one selected from Tb, Gd and Dy), a fourth B subcomponent including R oxide (note that, R is at least one selected from Ho, Y and Yb), and a fifth subcomponent including MnO or Cr2O3.
摘要翻译: 电介质陶瓷组合物包括主要组分,包括钛酸钡,第一副成分,包括MgO,第二副成分,包括SiO 2化合物的烧结助剂,第三副成分,其包含V2O5,Nb2O5和WO3中的至少一种,第四A组分,包括RA氧化物 (注意,RA为选自Tb,Gd和Dy中的至少一种),包含R氧化物的第四B子成分(注意,R为选自Ho,Y和Yb中的至少一种),以及包含MnO的第五副成分 Cr2O3。
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公开(公告)号:US07580242B2
公开(公告)日:2009-08-25
申请号:US12071470
申请日:2008-02-21
申请人: Sanshiro Aman , Takashi Kojima , Mari Miyauchi , Masakazu Hosono , Dan Sakurai , Kosuke Takano , Nobuto Morigasaki
发明人: Sanshiro Aman , Takashi Kojima , Mari Miyauchi , Masakazu Hosono , Dan Sakurai , Kosuke Takano , Nobuto Morigasaki
IPC分类号: H01G4/06
CPC分类号: H01G4/1227 , C04B35/49 , C04B35/62685 , C04B35/638 , C04B2235/3203 , C04B2235/3206 , C04B2235/3215 , C04B2235/3217 , C04B2235/3224 , C04B2235/3225 , C04B2235/3227 , C04B2235/3229 , C04B2235/3236 , C04B2235/3241 , C04B2235/3248 , C04B2235/3262 , C04B2235/3272 , C04B2235/3277 , C04B2235/3279 , C04B2235/3287 , C04B2235/3409 , C04B2235/3418 , C04B2235/5445 , C04B2235/6025 , C04B2235/6562 , C04B2235/6565 , C04B2235/6567 , C04B2235/6582 , C04B2235/6584 , C04B2235/6588 , C04B2235/663 , C04B2235/768 , C04B2235/79 , H01G4/30
摘要: The invention aims at providing a dielectric ceramic composition including BamTiO2+m where “m” satisfies 0.99≦m≦1.01 and BanZrO2+n where “n” satisfies 0.99≦n≦1.01, an oxide of Mg, an oxide of R where R is at least one selected from Sc, Y, La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb and Lu, an oxide of at least one element selected from Mn, Cr, Co and Fe, and an oxide of at least one element selected from Si, Li, Al, Ge and B. 35 to 65 moles of BanZrO2+n, 4 to 12 moles of an oxide of Mg, 4 to 15 moles of an oxide of R, 0.5 to 3 moles of an oxide of Mn, Cr, Co and Fe, and 3 to 9 moles of an oxide of Si, Li, Al, Ge and B are included therein per 100 moles of the BamTiO2+m.
摘要翻译: 本发明的目的是提供一种包括BamTiO 2 + m的介电陶瓷组合物,其中“m”满足0.99 <= m <= 1.01和BanZrO2 + n,其中“n”满足0.99 <= n <= 1.01,Mg的氧化物, R,其中R是选自Sc,Y,La,Ce,Pr,Nd,Pm,Sm,Eu,Gd,Tb,Dy,Ho,Er,Tm,Yb和Lu中的至少一种,至少一种元素 选自Mn,Cr,Co和Fe,以及选自Si,Li,Al,Ge和B中的至少一种元素的氧化物。35至65摩尔的BanZrO 2 + n,4至12摩尔的Mg,4 15摩尔的R的氧化物,0.5〜3摩尔的Mn,Cr,Co和Fe的氧化物,以及3〜9摩尔的Si,Li,Al,Ge和B的氧化物,其中每100摩尔的 BamTiO2 + m。
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公开(公告)号:US20090088315A1
公开(公告)日:2009-04-02
申请号:US12232875
申请日:2008-09-25
申请人: Hideaki Seki , Sanshiro Aman , Mari Miyauchi
发明人: Hideaki Seki , Sanshiro Aman , Mari Miyauchi
IPC分类号: C04B35/468
CPC分类号: H01G4/1227 , C04B35/4682 , C04B35/486 , C04B35/49 , C04B35/62685 , C04B2235/3203 , C04B2235/3206 , C04B2235/3215 , C04B2235/3217 , C04B2235/3224 , C04B2235/3225 , C04B2235/3227 , C04B2235/3229 , C04B2235/3236 , C04B2235/3248 , C04B2235/3249 , C04B2235/3251 , C04B2235/3262 , C04B2235/3272 , C04B2235/3277 , C04B2235/3287 , C04B2235/3409 , C04B2235/3418 , C04B2235/5445 , C04B2235/6562 , C04B2235/6565 , C04B2235/6584 , C04B2235/663 , C04B2235/79 , C04B2235/80 , H01G4/30
摘要: The present invention relates to a dielectric ceramic composition comprising BaTiO3, BaZrO3, and the oxide of R wherein, when A is the content of BaZrO3, and C is the content of the oxide R, with respect to 100 moles of BaTiO3, then A is 40≦A≦65 moles and C is 4≦C≦15 moles; plus said dielectric composition satisfies the equation (1) and (2). The present invention can provide a dielectric ceramic composition good in IR lifetime, and capable to be suitably used for medium-high voltage which has a high rated voltage (for example, 100V or more). 0.0038A−0.147≦B≦0.004A+0.04 Equation (1) (note that, B is a ratio of the X-ray diffraction maximum intensity among peaks of said BaZrO3 with respect to the X-ray diffraction maximum intensity among peaks of said BaTiO3). 0.0041C−0.0115≦D≦0.0046C+0.084 Equation (2) (note that, D is a ratio of the X-ray diffraction maximum intensity among peaks of the oxide of said R with respect to the X-ray diffraction maximum intensity among peaks of said BaTiO3).
摘要翻译: 本发明涉及包含BaTiO 3,BaZrO 3和R的氧化物的电介质陶瓷组合物,其中当A为BaZrO 3的含量且C为氧化物R的含量时,相对于100摩尔BaTiO 3,A为 40 <= A <= 65摩尔,C为4 <= C <= 15摩尔; 加上所述电介质组合物满足等式(1)和(2)。 本发明可以提供具有良好的IR寿命的电介质陶瓷组合物,并且能够适用于具有高额定电压(例如100V以上)的中高电压。 <?in-line-formula description =“In-line formula”end =“lead”?> 0.0038A-0.147 <= B <= 0.004A + 0.04等式(1)<?in-line-formula description =“In (注意,B是所述BaZrO 3的峰的X射线衍射最大强度与所述BaTiO 3的峰的X射线衍射最大强度的比)。 <?in-line-formula description =“In-line Formulas”end =“lead”?> 0.0041C-0.0115 <= D <= 0.0046C + 0.084等式(2)<?in-line-formula description =“In (公式“end =”tail“?>(注意,D是所述R的氧化物的峰的X射线衍射最大强度与所述BaTiO 3的峰的X射线衍射最大强度之比 )。
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公开(公告)号:US07335329B2
公开(公告)日:2008-02-26
申请号:US10633686
申请日:2003-08-05
申请人: Yukie Nakano , Shunichi Yuri , Mari Miyauchi , Daisuke Iwanaga
发明人: Yukie Nakano , Shunichi Yuri , Mari Miyauchi , Daisuke Iwanaga
CPC分类号: H01G4/12 , H01G4/232 , H01G4/30 , Y10T29/417
摘要: A method of producing a multilayer ceramic capacitor having internal electrode layers and dielectric layers with dielectric particles is disclosed. An average particle diameter of the dielectric particles, when measured parallel with the direction of the internal electrode layers, is larger than a thickness of the dielectric layer. A ratio (R/d) between the average particle diameter (R) and the thickness (d) of the dielectric layer is 1
摘要翻译: 公开了一种制造具有内部电极层和具有电介质颗粒的电介质层的多层陶瓷电容器的方法。 当与内部电极层的方向平行地测量时,电介质颗粒的平均粒径大于介电层的厚度。 介电层的平均粒径(R)与厚度(d)之比(R / d)为1
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公开(公告)号:US20050111163A1
公开(公告)日:2005-05-26
申请号:US10951941
申请日:2004-09-29
申请人: Kazushige Ito , Shunichi Yuri , Yukie Nakano , Mari Miyauchi , Takako Hibi , Daisuke Iwanaga , Masakazu Hosono
发明人: Kazushige Ito , Shunichi Yuri , Yukie Nakano , Mari Miyauchi , Takako Hibi , Daisuke Iwanaga , Masakazu Hosono
CPC分类号: H01G4/1227 , C04B35/468 , H01G4/30
摘要: In order to provide dielectric ceramic composition having low IR defect rate and high relative dielectric constant even when the multilayer ceramic capacitor is made thinner, dielectric ceramic composition including a main component expressed by a composition formula {{Ba(1-x)Cax}O}A{Ti(1-y-z)ZryMgz}BO2 and subcomponents of Mn oxide, Y oxide, V oxide and Si oxide is provided. In the above formula, A, B, x , y and z are as follows: 0.995≦A/B≦1.020, 0.0001≦x≦0.07, preferably 0.001≦x≦0.05, 0.1≦y≦0.3 and 0.0005≦z≦0.0 1, preferably 0.003≦z≦0.0 1.
摘要翻译: 为了提供具有低IR缺陷率和高相对介电常数的介电陶瓷组合物,即使当多层陶瓷电容器制得更薄时,包括由组成式{{Ba(1-x) (1-yz)Zr y>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> 提供了Mn氧化物,Y氧化物,V氧化物和Si氧化物的次要成分。 在上式中,A,B,x,y和z如下:0.995 <= A / B <= 1.020,0.0001 <= x <= 0.07,优选0.001 <= x <= 0.05,0.1 < = 0.3和0.0005 <= z <= 0.0 1,优选0.003 <= z <= 0.0 1。
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