Effects of addition of BT on structural phase formation and electrical properties of relaxor ferroelectric Pb(In0.5Nb0.5)(1−x)Ti(x)O3 ceramics

Effect of Dy2O3 on the structure and electrical properties of (Bi0.5Na0.5)0.94Ba0.06TiO3 lead-free piezoelectric ceramics

“…One can also use the loop squareness to measure not only the deviation in the polarization axis but also that in the electric field axis with the empirical expression, R sq = (P r /P s ) + (P 1.1Ec /P r ) where P 1.1Ec is the polarization at the field equal to 1.1E c . For the ideal square loop, R sq is equal to 2.00 [34]. The R sq parameter lists in Table 1 for all BNBT6 ceramics at room temperature, the result shows that more loop squareness increases with increasing Dy 2 O 3 contents firstly, and then decreases, and R sq reaches a peak value (1.40) at x = 0.2.…”

“…The square type loops are due to abruptly switching of a domain structure with an electric field. On the other hand, the slim type loops are owing to more sluggish reversal [34]. Increasing loop squareness can also show that the movement of domains becomes easier and the ferroelectric properties of the BNBT6 ceramics have been improved with the addition of Dy 2 O 3 .…”

Microstructural Origin of Magnetic and Giant Dielectric Behavior of Sr2MnTiO6−δ Perovskite Nanocrystals

“…Permittivity has been evaluated as a function of frequency and temperature by means of AC electrical measurements. A giant dielectric response was obtained with ɛ′ values of 125 000, for 1 kHz and 700 K. Nevertheless, clearly as no peak is observed in the variation of ɛ′ with T , in the frequency range explored, ferroelectric behavior could be precluded (including the relaxor‐type one, observed in related systems 10 ).…”

Complete set of elastic, dielectric, and piezoelectric coefficients of [−101] poled 0.23Pb(In1/2Nb1/2O3)–0.45Pb(Mg1/3Nb2/3)O3–0.32PbTiO3 single crystals

“…Liquid-phase sintering mechanism may take partial effect in the densification of PIN-PMN-PT ceramics due to the round grain morphology. Also, similar system ceramics with liquid-phase are reported in literature [9][10][11][12][13][14]. However, some issues remain to be improved, such as the low piezoelectric coefficient for ceramics, low depoling temperature and coercive field for many crystals.…”