| abstract |
The general formula is represented by (Ba 1 -α M α) A (Ti 1 -β Mn β) B O 3 and the crystal structure is a hexagonal crystal, an effective ionic radius at the time 12 when the coordination number of M 12 coordinated Ba 2 + Hexagonal barium titanate that is within ± 20% of the effective ion radius, and wherein A, B, α, and β satisfy a relationship of 0.900≤ (A / B) ≤1.040, 0.003≤α≤0.05, 0.03≤β≤0.2 As a main component, and as an auxiliary component with respect to 100 mol of the main component, alkaline earth oxides such as MgO, Mn 3 O 4 and / or Cr 2 O 3 , CuO, Al 2 O 3 , rare earth element oxides, and SiO A dielectric ceramic composition containing a specific amount of a glass component containing 2 is provided. According to the present invention, it is possible to provide a hexagonal barium titanate and a dielectric ceramic composition which are highly suitable for producing electronic components such as capacitors which exhibit high dielectric constant, have excellent insulation resistance, and have sufficient reliability. |