摘要:
A ceramic electronic device including a dielectric layer, wherein the dielectric layer includes a main component expressed by a composition formula of BamTiO2+m, wherein “m” satisfies 0.995≦m≦1.010 and a ratio of Ba and Ti satisfies 0.995≦Ba/Ti≦1.010, and a subcomponent (a sixth subcomponent) including an oxide of Al; and a content of the Al compound is 0 to 4.0 moles (note that 0 is not included) in terms of Al2O3 with respect to 100 moles of the main component; and preferably, the dielectric layer includes a segregation phase, and the segregation phase includes an oxide of Al.
摘要翻译:1.一种陶瓷电子器件,其特征在于,所述电介质层包括由组成式为BamTiO 2 + m表示的主成分,其中,“m”满足0.995≤m≤1.010,Ba与Ti的比例满足0.995 < Ba / Ti <= 1.010,以及包含Al的氧化物的副成分(第六副成分) Al化合物的含量相对于100摩尔主成分为0〜4.0摩尔(注意,不包括0)。 并且优选地,电介质层包括偏析相,并且偏析相包括Al的氧化物。
摘要:
A dielectric ceramic position having at least a main component including barium titanate, a first subcomponent including at least one type of compound selected from MgO, CaO, BaO, a SrO, a second subcomponent including at least one type of compound selected from Al2O3, Li2O, and B2O3, a third subcomponent including at least one type of compound selected from V2O5, MoO3, and WO3, a fourth subcomponent including an oxide of R1 (where R1 is at least one type of element selected from Sc, Er, Tm, Yb, and Lu), and a fifth subcomponent including CaZrO3 or CaO+ZrO2.
摘要:
A dielectric ceramic composition comprised of at least dielectric particles having barium titanate as its main ingredient, wherein the ratio of dielectric particles having a surface diffusion structure comprised of a main ingredient phase comprised of the main ingredient and a diffusion phase present around the ingredient phase with respect to said dielectric particles is 60% or more the ratio of dielectric particles having a domain in the main ingredient phase with respect to the dielectric particles having the surface diffusion structure is 20% or less. According to the present invention, a dielectric ceramic composition and electric device realizing good high temperature accelerated life can be provided.
摘要:
A dielectric ceramic composition comprising a predetermined main component and a fifth subcomponent including an oxide of A (note that A is at least one king selected from a cation element group having an effective ionic radius of 0.065 nm to 0.085 nm at the time of 6 coordination); and the dielectric ceramic composition comprises a plurality of crystal grains including Ca elements and, when assuming that an average value of a concentration of entire Ca exiting in said respective crystal grains is grain Ca concentration, at least unevenness exists in said grain Ca concentration between said crystal grains and it is 5% or higher in a CV value.
摘要:
A dielectric ceramic composition comprising a main component including Ba, Ca and Ti and having a perovskite crystal structure expressed by a general formula ABO3 and a fourth subcomponent including a compound of Zr; wherein a content of the fourth subcomponent with respect to 100 moles of the main component is larger than 0 mole and smaller than 5 moles in terms of Zr and, preferably, a segregation phase including the compound of Zr is provided.
摘要:
An object of the invention is to provide a multilayer ceramic capacitor having high dielectric constant, good temperature characteristic, and an improved IR temperature dependency. According to the present invention, a capacitor device body 10, wherein dielectric layers 2 comprising dielectric ceramic composition and internal electrode layers 3 are alternately laminated, characterized in that said dielectric ceramic composition comprises a plural number of crystal particles 2a wherein said crystal particles 2a form Ca dispersing area 25a wherein at least said Ca is dispersed from the surface to inside of crystal particles, and when considering crystal particles 2a having an average particle diameter of D50, an average depth T of said Ca dispersing area is controlled within a range of 10 to 30% with respect to the average particle diameter of D50, is provided.
摘要:
A highly reliable ceramic electronic device having an excellent temperature characteristic of a capacitance and a low IR temperature dependency, comprising a dielectric layer: wherein the dielectric layer includes a main component expressed by a composition formula of BamTiO2+m, wherein “m” satisfies 0.995≦m≦1.010 and a ratio of Ba and Ti satisfies 0.995≦Ba/Ti≦1.010, and, as subcomponents, an oxide of Al and an oxide of Si or an oxide of R (note that R is at least one kind selected from Sc, Y, La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb and Lu); and includes a secondary phase composed of at least a part of the oxide of Al and at least a part of the oxide of Si or the oxide of R and being different from a main phase mainly composed of the main component; and the production method are provided.
摘要翻译:一种具有优异的电容温度特性和低IR温度依赖性的高度可靠的陶瓷电子器件,包括电介质层:其中所述电介质层包括由组成式Ba≠TiO 2表示的主要成分 其中“m”满足0.995 <= m <= 1.010,Ba和Ti的比例满足0.995 <= Ba / Ti <= 1.010,作为次要成分的Al的氧化物 和Si的氧化物或R的氧化物(注意,R为选自Sc,Y,La,Ce,Pr,Nd,Pm,Sm,Eu,Gd,Tb,Dy,Ho,Er,Tm中的至少一种 ,Yb和Lu); 并且包括由Al的氧化物的至少一部分和Si的氧化物的至少一部分或R的氧化物组成的第二相,并且与主要由主要成分构成的主相不同; 并提供制造方法。
摘要:
In a multilayer ceramic capacitor of the present invention, a first rare earth element (R1) and a second rare earth element (R2) respectively diffuse in each of crystal grains forming dielectric layers and, assuming that, in the crystal grains each having an average grain diameter D, a ratio of a depth d1 of a diffusion layer of the first rare earth element (R1) from the surface of the crystal grain relative to the diameter D of the crystal grain is given as X1(%) and a ratio of a depth d2 of a diffusion layer of the second rare earth element (R2) from the surface of the crystal grain relative to the diameter D of the crystal grain is given as X2(%), the depth d2 of the diffusion layer of the second rare earth element (R2) reaches deeper than the depth d1 of the diffusion layer of the first rare earth element (R1) and a relationship of X1=10 to 35% and X2>X1 (synonymous with d2>d1) is established. Therefore, the multilayer ceramic capacitor is excellent in reliability wherein the capacitance-temperature characteristic, i.e. a time-dependent change in capacitance, satisfies the EIA standard X8R characteristic (ΔC/C=±15% at −55 to +150° C.) and the resistance change ratio in an acceleration test is small (average life is long).
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。