fig1
From: Challenges and progress of chemical modification in piezoelectric composites and their applications
Figure 1. The mechanism, classification, and piezoelectric coefficient of typical piezoelectric materials. (A) Converse and direct piezoelectric effects; (B) typical piezoelectric single crystals, ceramics, and polymers; (C) d33 of some typical piezoelectric materials. BSPT: BiScO3-PbTiO3; BNKLBT: (Na,Bi)TiO3-(K,Bi)TiO3-(Li,Bi)TiO3-BaTiO3; PZNT: PbZn1/3Nb2/3O3-PbTiO3; PMNT:
