Enhanced piezoelectric properties of (1-x)(K0.5,Na0.5)(Nb0.97Sb0.03)O3-x(Bi0.5Ca0.5)ZrO3 ceramics through the establishment of polymorphic phase boundary

• A polymorphic phase boundary (PPB) of O-T phase is constructed successfully in (1-x)KNNS–xBCZ ceramics. • The formation mechanism of PPB is revealed from the point of crystal structure. • The relationship between the enhanced performance and PPB is explored deeply. • High d 33 (303 pC/N) and T C (...
Ausführliche Beschreibung

• A polymorphic phase boundary (PPB) of O-T phase is constructed successfully in (1-x)KNNS–xBCZ ceramics. • The formation mechanism of PPB is revealed from the point of crystal structure. • The relationship between the enhanced performance and PPB is explored deeply. • High d 33 (303 pC/N) and T C (340 °C) are obtained in 0.98KNNS–0.02BCZ ceramics with O-T phase boundary. Ausführliche Beschreibung