High pressure behaviour of BCZTx at ambient temperature

Pb-free piezoelectric minerals based on Ba1-x(Zr0.2Ti0.8)O3-x(Ba0.7Ca0.3)TiO3 compounds (hereafter referred to as BCZTx) have shown promising electromechanical response. However, their full electromechanical response potential and working-temperature range has not yet been understood, primarily due to the ambiguity of the phase stability under external perturbation. Into details, the effects of hydrostatic pressure or oriented stress on the temperature-dependent polymorphic phase transitions (TPPT) are still unknown. This information is critical in order to understand and improve the working temperature range of BCZTx-based piezoelectrics. As such, we aim to perform an in situ hydrostatic pressure (at ambient temperature) on a BCZTx single crystal.