| 简介 |
A dielectric ceramic that forms dielectric ceramic layers of a multilayer ceramic capacitor contains a Ba and Ti containing perovskite compound, Ca, R (R denotes a rare earth element, such as La), M (M denotes Mn or the like), and Si. The Ca content ranges from 0.5 to 2.5 molar parts, the R content ranges from 0.5 to 4 molar parts, the M content ranges from 0.5 to 2 molar parts, and the Si content ranges from 1 to 4 molar parts, based on 100 molar parts of Ti. In perovskite crystal grains, the Ca diffusion depth is 10% or less of the average grain size of the crystal grains, and the Ca concentration in a Ca diffusion region is 0.2 to 5 molar parts higher than the Ca concentration near the center of each of the crystal grains. |
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