Correlation between a Semi-Quantitative Concentration Index and the Actual Concentration of BaTi₂O₅ in the Mixed Phase with BaTiO₃ and Ba₆Ti₁₇O₄₀

Abstract

In the mixed powders composed of BaTi₂O₅(BT2), BaTiO₃(BT) and Ba₆Ti₁₇O₄₀(B6T17), the quantitativity of a semi-quantitative concentration index α for actual BT2 concentration was verified. The powders of BT2, BT and B6T17 were synthesized through solid state reactions respectively. These calcined powders were mixed at various molar ratios. These mixed powders with known values of BT2 concentration were analyzed with X-ray powder diffraction. α was derived from the heights of the two particular diffraction peaks due to BT2 and BT. The quantitativity was clarified by comparing measured α values with actual BT2 concentrations.