Patent ID: 8545982
Filing Date: 2013-10-01
Classification: C01G,C01P,C04B,H01G,Y10T

Abstract:
1. A hexagonal type barium titanate powder, wherein a maximum particle diameter is 1.0 μm or less, a ratio (D90/D50) of 90% accumulated particle diameter (D90) and 50% accumulated particle diameter (D50) is 3.0 or less, a hexagonal ratio is 50% or more, an average particle diameter is 0.1 to 0.5 μm, the powder is shown by Ba M is a trivalent metal ion having an effective ionic radius in the range from 0.58 to 0.64 Å, a ratio A/B is in the range from 0.900 to 1,040, and α is in the range from 0.03 to 0.2, and M is a trivalent metal ion selected from the group consisting of Cr, Ga and Co.