| 摘要 |
A hexagonal type barium titanate powder comprising barium titanate as a main component shown by a generic formula of (Ba1-alphaMalpha)A(Ti1-betaGabeta)BO3 and having hexagonal structure wherein; an effective ionic radius of 12-coordinated "M" is -25% or more to +25% or less with respect to an effective ionic radius of 12-coordinated Ba2+, and said A, B, alpha and beta satisfy relations of 0.975<(A/B)@1.015, 0.0015@alpha<0.005, 0.075@beta@0.15. |
