A 3-Dimensional Approach for Evaluating the Influence of Poling Orientation on Piezoelectric Characteristics

Abstract

The present study proposes a 3-dimensional approach for enhancing the effective piezoelectric properties by poling orientation. The governing parameters for actuation and sensing applications are d 31 and d 31 ∕ 33 , respectively. The effective magnitudes of these parameters, i.e., d eff 31 and d eff 31 ∕ eff 33 , change with poling angles (roll and pitch angles). The combination of poling angles corresponding to the maximum magnitude of d eff 31 and d eff 31 ∕ eff 33 is called the optimum poling angle for piezoelectric materials. BaTiO 3 and KNN piezoelectric materials with tetragonal symmetry show an enhancement in d eff 31 ∕ eff 33 and d eff 31 at an optimized poling angle (roll angle). The piezoelectric material, 0.67Pb(Mg 1/3 Nb 2/3 )O 3 -0.33PbTiO 3 (PMN-0.33PT) with rhombohedral symmetry, shows a maximum improvement of 575% in d eff 31 ∕ eff 33at an optimum roll angle of 29° and a pitch angle of 60°. On the other hand, PMN-0.33PT shows an enhancement of 2034.44% in the d eff 31 coefficient at optimum roll and pitch angles of 50° and 60°. The effect of poling orientation on different piezoelectric materials with tetragonal and rhombohedral symmetry has been studied for actuation and sensing applications. The experimental approach to achieve inclination of dipoles through the placement of electrodes for different piezoelectric materials is also discussed.

Electromechanical study of graphene reinforced lead-free functionally graded tile for vibration energy harvesting

“…Numerous strategies for effective environment energy harvesting have been thoroughly explored, particularly triboelectricity (Kumar et al, 2022) and piezoelectricity. Because of the widespread availability of ambient mechanical energy in the form of vibrations, motions, and noises, energy harvesting through piezoelectric materials has sparked considerable interest (Singh et al, 2021). However, the fragile nature of piezoceramic material prohibits its usage in various electronic devices (Adhikari et al, 2022).…”

Influence of material grading and compositional platinum profile on the functionally graded piezoelectric bridge structure

“…On the other hand, size-dependent effects cause a substantial decrease in voltage and power output for a fixed base excitation. Recently, Singh et al 18 proposed a three-dimensional technique for increasing the effective piezoelectric characteristics via poling inclination. Rhombohedral PMN-0.33PT demonstrated a 57.5% improvement in sensing phenomena at 29° roll angle and 60° pitch angle.…”