| 简介 |
PROBLEM TO BE SOLVED : To provide a laminated electronic component which, even when its crystal particles are atomized, has a large dielectric constant and good temperature characteristics of dielectric constant and, even under a high voltage, exhibits a small decrease in electrostatic capacity.
SOLUTION : A dielectric porcelain is provided which contains perovskite-type barium titanate crystal particles (BTZ-type crystal particles) of which a part of the site B is substituted by Zr, perovskite-type bismuth sodium titanate crystal particles (BNST-type crystal particles) of which a part of the site A is substituted by Sr, and at least one element selected from among Mg, Mn, and rare earth elements. The at least one element selected from among Mg, Mn, and rare earth elements is present in a grain boundary phase between the BTZ-type crystal particles and the BNST-type crystal particles; and a part of the element is present in a state of a solid solution in the BTZ-type crystal particles and in the BNST-type crystal particles. Both of the BTZ-type crystal particles and the BNST-type crystal particles have an average particle size of 0.3-1.0 μm. |
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