Ceramics-Silikáty 56 (1) 36-39 (2012)

SOLID STATE SINTERING PREPARED 0.935(Bi_0.5Na_0.5)TiO₃-0.065BaTiO₃ LEAD FREE CERAMICS: EFFECT OF POLING CONDITIONS

H. Lidjici, F. Hobar, M. Rguiti, C. Courtois, A. Leriche

In this work , the influence of poling conditions (poling field, poling temperature and poling time) on the piezoelectric properties of 0.935(Bi_0.5Na_0.5) TiO₃-0.065BaTiO₃ (BNT6.5BT) lead-free ceramics was examined. Piezoelectric properties like piezoelectric constant (d₃₃) and electromechanical factors (K_p ,K_t) depend on poling field and poling temperature, whereas different poling times, in the 5-30 min range, were not observed to have significant effect on the piezoelectric properties.

Keywords: Lead free ceramics, Poling conditions, Piezoelectric properties