Dielectric ceramic composition and electronic device

Details Dielectric ceramic composition and electronic device Dielectric ceramic composition and electronic device

2007-08-28

2007-08-28

Group, Karl (Department: 1755)

Compositions: ceramic

Ceramic compositions

Titanate, zirconate, stannate, niobate, or tantalate or...

C501S138000, C361S321400

Reexamination Certificate

active

11207929

ABSTRACT:
A dielectric ceramic composition, comprising a main component including barium titanate; a first subcomponent including at least one kind selected from MgO, CaO, BaO and SrO; a second subcomponent functioning as a sintering auxiliary agent; a third subcomponent including at least one kind selected from V2O5, MoO3and WO3; a fourth subcomponent including an oxide of R1 (note that R1 is at least one kind selected from Sc, Er, Tm Yb and Lu); a fifth subcomponent including CaZrO3or CaO+ZrO2; and an eighth subcomponent including an oxide of A (note that A is at least one kind selected from a cation element group having an effective ionic radius at the time of 6 coordination of 0.065 nm to 0.085 nm); wherein a ratio of the eighth subcomponent with respect to 100 moles of the main component is 0 to 4 moles (note that 0 mole and 4 moles are excluded, and the value is in terms of an A oxide).

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