Control of the Crystalline Structure and Piezoelectric Properties of (K,Na,Li)(Nb,Ta,Sb)O3 Ceramics through Transition Metal Oxide Doping

Home - Blog Detail

Fernando Rubio-Marcos, Juan José Romero, José Francisco Fernández and Pascal Marchet


Divalent transition metal oxide doping of lead-free (K,Na,Li)(Nb,Ta,Sb)O3 piezoceramics is studied. Two different behaviors were observed independently of the doping metal: at low concentrations, the tetragonal structure is preserved, while at a high doping level, the material becomes orthorhombic. For any given doping level, a linear dependence was found between the pseudo-tetragonal lattice distortion and the ionic radii of doping ions. The ferroelectric and piezoelectric properties of the material are reduced by the doping, whereas the mechanical quality factor increases. Thus, the piezoelectric and ferroelectric properties of these lead-free piezoceramics can be easily controlled through metal oxide doping.

Link : [frontend_admin field=64997b393c1b1 edit=false]

The European hub of Piezo Electricity

© 2023 Created by ALLOUARD Bastien, SOUSA BESSA Fabricio, BAVENCOFFE Maxime