Abstract:
Provided is a laminated ceramic capacitor which produces excellent lifetime characteristics in a high-temperature loading test even when dielectric layers are reduced in thickness. The dielectric ceramic contains, as its main constituent, a compound represented by the general formula (Ba1-x-yCaxRey)(Ti1-zMz)O3 (where Re is at least one or more elements selected from among La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, and Y, and M is at least one or more elements selected from among Mg, Mn, Al, Cr, and Zn), 0≦x≦0.2, 0.002≦y≦0.1, and 0.001≦z≦0.05. This dielectric ceramic has crystal grains of 20 nm or more and 150 nm or less in average grain size.
Abstract:
Provided is a laminated ceramic capacitor which produces excellent lifetime characteristics in a high-temperature loading test even when dielectric layers are reduced in thickness. The dielectric ceramic contains, as its main constituent, a compound represented by the general formula (Ba1-x-yCaxRey)(Ti1-zMz)O3 (where Re is at least one or more elements selected from among La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, and Y, and M is at least one or more elements selected from among Mg, Mn, Al, Cr, and Zn), 0≦x≦0.2, 0.002≦y≦0.1, and 0.001≦z≦0.05. This dielectric ceramic has crystal grains of 20 nm or more and 150 nm or less in average grain size.
Abstract translation:提供一种层叠陶瓷电容器,其即使在电介质层的厚度减小时也能在高温负载试验中产生优异的寿命特性。 电介质陶瓷作为其主要成分含有由通式(Ba1-x-yCaxRey)(Ti1-zMz)O3表示的化合物(其中Re为选自La,Ce,Pr,Nd中的至少一种以上的元素) ,Sm,Eu,Gd,Tb,Dy,Ho,Er,Tm,Yb,Lu和Y,M是选自Mg,Mn,Al,Cr和Zn中的至少一种以上的元素) x@0.2,0.002 @ y @ 0.1和0.001 @ z @ 0.05。 该电介质陶瓷的平均粒径为20nm以上且150nm以下的晶粒。