Influence of Sn-Substitution on the Phase Transitions Character in Polycrystalline (Ba_0.90Sr_0.10)(Ti_1-ySn_y)O₃

Tailored electrostrain and related properties in (1 − x)BaTiO3–xSrSnO3 Pb‐free electroceramics

“…Meanwhile, our jumping frequency was much higher than the reported values (10 6 –10 8 ) for the boundary compositions, and this result suggests that the size of PNRs in BSTS is much smaller than those in BTS and BTZ due to the strengthened stress field by the substitution on both A‐ and B‐sites. As shown earlier, relaxor behavior was observed for x = 0.15 in this experiment, indicating that the incorporation of Sr accelerated the change in the phase transition behavior from a diffuse to relaxor phase transition in BTS 45,46 . This result can also be attributed to the intensified compositional disorder and corresponding stress field due to the additional A‐site substitution with Sr in BTS 29,37,47 …”

“…As shown earlier, relaxor behavior was observed for x = 0.15 in this experiment, indicating that the incorporation of Sr accelerated the change in the phase transition behavior from a diffuse to relaxor phase transition in BTS. 45,46 This result can also be attributed to the intensified compositional disorder and corresponding stress field due to the additional A-site substitution with Sr in BTS. 29,37,47 This composition-dependent phase transition behavior in the BSTS was also investigated using the modified Curie-Weiss law shown in the following equation 48 :…”

Alternative, Direct Synthesis Method of the Ceramic Solid Solutions Based on BaTiO3 Through a High Energy Ball Milling

“…The dielectric properties of ceramic materials based on barium titanate depend on the concentration of ions substituted in the cationic sublattices A and/or B as well as their size and the valence [3][4]. The ions substitutions in the both cationic sublattices simultaneously generated the higher heterogeneity of structure which was confirmed by the X-ray measurements [5][6]. The differences in the sizes of ionic radii of Ba +2 (R Ba = 0.135 nm) and Sr +2 (R Sr = 0.118 nm) as well as Ti +4 (R Ti = 0.061 nm) and Sn +4 (R Sn = 0.069 nm) ions cause the changes in the size of solid solution unit cell.…”