Enhancement of dielectric properties of 0.2[BZT-BCT]–0.8[(1 − x )epoxy– x CCTO] ( x = 0.02, 0.04, 0.06, 0.08 & 0.1) composites for embedded capacitor and energy harvesting applications

Improvements in piezoelectric and energy harvesting properties with a slight change in depolarization temperature in modified BNKT ceramics by a simple technique

“…The results of a comparison of the FoM value for this study with the results of other earlier research studies for different piezoelectric lead-free ceramics are represented in Table 4. 98,107–109,111,114–120 The g 33 and FoM values for the current experiment are considerably high when compared with other lead free piezoelectric ceramics.…”

Development of performance‐improved global positioning system (GPS) patch antenna based on sol‐gel‐synthesized dual‐phase (Bi4Ti3O12)X – (CaCu3Ti4O12)1–X composites

“…The decrease in the loss values in the lower frequency range can be related to the interfacial polarization, whereas the sharp increase in the loss at higher frequency region can be associated with the dielectric relaxation process and also due to the increase in connectivity between the ceramic particles . The decrease in dielectric loss of BTO with the increase of CCTO content in the composites highlights the advantage of using this material for a filler in place of CNTs and other metal oxides . The maximum dielectric loss may be attributed to the fact that the period of the relaxation process is the same as the period of the applied field.…”

“…For all the composites, the dielectric loss decreases with the increase in frequency and it is almost constant with frequency from 10 3 to 10 4 Hz and then starts increasing. The reason for this oscillatory behavior may be ascribed to some relaxation processes, which usually occur in heterogeneous systems . The decrease in the loss values in the lower frequency range can be related to the interfacial polarization, whereas the sharp increase in the loss at higher frequency region can be associated with the dielectric relaxation process and also due to the increase in connectivity between the ceramic particles .…”

Structural, morphological, and dielectric properties of poly(vinylidene fluoride)/(Bi0.5Ba0.25Sr0.25) (La0.5Ti0.5) O3 composites

“…Several researchers have looked into the possibilities of enhancing dielectric and ferroelectric characteristics by with incorporation of ferroelectric ceramics, including BaTiO 3 (BT), CaCu 3-Ti 4 O 12 (CCTO), Pb (Mg 0.5 Nb 0.66 ) O 3 PbTiO 3 , and PMN-PT. [7][8][9][10][11][12] The majority of the piezoelectric materials, such as lead-zirconium-titanate composites (PZT), zinc oxide (ZnO), or naturally occurring crystals, like berlinite (AlPO 4 ) are incorporated with PVDF have many advantages due to flexible, affordable, nonhazardous behavior. 13,14 Due to their superior thermal and electrical characteristics of 2D carbon fillers like graphene nanosheets, graphene oxide, reduced graphene oxide, carbon nanotubes, and exfoliated graphite nanoplates were introduced in polymer matrix of PVDF and its copolymers.…”