4.5 Article

A correlation between depolarization temperature, ergodicity and piezoelectric response in Nb5+-substituted (Na0.41K0.09Bi0.50)TiO3

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Investigation on the Correlation between Piezoelectricity and Its Thermal Behavior with Depolarization Temperature and Antiferroelectric Order in Niobium-Doped (Na0.41K0.09Bi0.5)TiO3: A Lead-Free Piezoelectric

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Summary: The study investigates the correlation between piezoelectric response and thermal stability in (Na0.41K0.09Bi0.5)((1-x/2))(Ti1-xNbx)O-3 ceramics, finding that an increase in piezoelectric response is observed in a limited composition range. However, thermal stability varies with niobium concentration, with lower concentrations showing better stability. The thermal instability at higher niobium content is attributed to the decrease in depolarization temperature and emergence of antiferroelectric ordering.

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