| 摘要 |
<p>A dielectric ceramic composition comprising a main component of composed mainly of barium titanate, a first subcomponent including at least one compound selected from MgO, CaO, BaO, SrO and Cr 2 O 3 , a second subcomponent containing silicone oxide as a main composition, a third subcomponent including at least one compound selected from V 2 O 5 , MoO 3 , and WO 3 , a fourth subcomponent including an oxide of R1 (where R1 is at least one element selected from Sc, Er, Tm, Yb, and Lu), and a fifth subcomponent including CaZrO 3 or CaO+ZrO 2 , wherein the ratios of the subcomponents to 100 moles of the main component of composed mainly of barium titanate are the first subcomponent of 0.1 to 3 moles, the second subcomponent of 2 to 10 moles, the third subcomponent of 0.01 to 0.5 moles, the fourth subcomponent of 0.5 to 7 moles (where the number of moles of the fourth subcomponent is the ratio of R1 alone), and the fifth subcomponent of 0<fifth subcomponent‰¤5 moles. According to the dielectric ceramic composition, the permittivity is high and the capacity-temperature characteristics can fulfill the X8R characteristics of the EIA standard (within the range of -55 to 150°C and ”C=±15%), and firing in a reduced atmosphere is possible.</p> |
