Figure 4

Composition dependence of the lattice parameters a, b, c, angle β, volume V and the ratio of the change of the lattice parameters Δl/l₀ of Ba_1−xCa_xTi₂O₅ (0 ≤ x ≤ 0.40).

Δl = l_x − l₀. l_x presents a lattice parameter at x. Squares, circles and upper triangles correspond to lattice parameters a, b and c, respectively.