Dielectric and optical properties of a quasi-ferroelectric PLZT ceramic

Pb(Zr0.52Ti0.48)O3 ceramics sintered with Li2CO3 and Na2CO3: improvement of characteristics

“…In Fig. 5, a high dielectric constant was observed for Li-La pair doping, which was similar to the dielectric property of (Pb, La)(Zr, Ti)O3 (so-called PLZT) ceramics [16]. Fig.…”

Characterization of PLZT Ceramics for Optical Sensor and Actuator Devices

“…According to the dielectric results in the previous section, decreasing the temperature at which these measurements were taken should increase the hysteresis gap (ferroelectric behaviour), and increasing the temperature should further decrease the hysteresis. This was observed by Carl et al (Carl and Geisen 1973) for PLZT (9.0/65/35). The slim ferroelectric behaviour of these PLZT compositions makes them ideal for use as precision sensors and actuators, since they have almost no remnant polarization when the field is removed.…”

“…It was previously found that the ratio of / nS  for unclamped relaxor PLZT ceramics was approximately 16 (Carl and Geisen 1973), therefore, the second term in equation (7) should equate to approximately 0.16 n  , since relaxor PLZT compositions have an approximate refractive index of 2.5 at room temperature. Under mechanical clamping conditions, as is the case illustrated in figure 9, the sample would have restricted movement and hence the second term on the right hand side of equation (7) would become even smaller.…”

The electric field-induced antiferroelectric to ferroelectric phase transition in some (Pb,La)Zr0.55Ti0.45O3 ceramics

“…The phase relations and dielectric properties of PLZT x/65/35 have been investigated intensively 12,3,4]. For investigations of diffuse phase transitions in PLZT ceramics Wolters and Burggraaf 15,61 have chosen PLZT with a Zr to Ti ratio of 55 to 45 (PLZT x/55/45).…”