Figure 1
(a) Amplified XRD patterns of (1 − x − y)KNN-xBNKLZ-yBS ternary ceramics (x = 0–0.05, y = 0–0.03) in the 2θ range of 44–47° measured at room temperature. The results of phase structure as identified by Rietveld refinements are presented in (a). (b) Temperature dependence of dielectric constant εr measured at 100 kHz in the temperature range of −150 to 200 °C. The dotted circles indicate regions corresponding to coexistence of R and T phases. The TR-O and TO-T converge at/near room temperature by doping with BNKLZ (x) and BS (y).
