Investigation of the composition-dependent properties of BaTi1−xZrxO3 ceramics prepared by the modified Pechini method

Continuous BaTi1−yZryO3 (0≤y≤1) nanocrystals synthesis in supercritical fluids for nanostructured lead-free ferroelectric ceramics

“…4b), exhibiting active modes at 183 cm −1 associated with those at 307 cm −1 and 715 cm −1 , supports the presence of a long-range ferroelectric order on the B site within the perovskite structure remaining from the initial BaTiO 3 one. As expected, this long range order disappears for BaTi 0.6 Zr 0.4 O 3 which becomes cubic at room temperature [43][44][45][46][47]. This result supports the accuracy in terms of composition control of the supercritical fluid technology for BTZ synthesis.…”

“…However these permittivities remain higher than those reported by Rabuffetti et al, since in the later case only room temperature permittivity values of pressed compacts have been reported (ε r in the range 10-70 according to the composition) [5,6,14,43,47,[49][50][51]. This is in good agreement with the high density of the obtained nanostructured ceramics.…”

Porosity‐dependent properties of Nb‐doped Pb(Zr,Ti)O3 ceramics

“…More details about the Preisach model and the meaning of p irrev and p rev distributions can be found elsewhere . In fact, all the ferroelectric systems are characterized by their particular distributions p irrev and p rev , which can be found by First‐Order Reversal Curves measurements, as demonstrated by many reports in literature …”

Structure–microstructure–property relationships in lead-free BCTZ piezoceramics processed by conventional sintering and spark plasma sintering

“….). Detailed studies have been thus presented elucidating the relationships between the crystallographic structure/grain sizes/domain configurations and their ferroelectric/piezoelectric properties [18][19][20][21][22][23][24]. However, few available data were reported in the literature emphasizing such correlations in the BCTZ solid solutions, when the grain size is reduced [25,26].…”