Enhanced texture evolution and piezoelectric properties in CuO-doped Pb(In1/2Nb1/2)O3-Pb(Mg1/3Nb2/3)O3-PbTiO3 grain-oriented ceramics

• DOI: 10.1063/1.5006288
• Publication Date: 2017-12-05T15:00:37Z
• Authors: Yunfei Chang; Beecher Watson; Mark Fanton; Richard J. Meyer; Gary L. Messing
• Keywords: Texture (cosmology)

In this work, both crystallographic texture and doping engineering strategies were integrated to develop relaxor-PbTiO3 (PT) based ternary ferroelectric ceramics with enhanced evolution superior electromechanical properties. CuO-doped Pb(In1/2Nb1/2)O3-Pb(Mg1/3Nb2/3)O3-PbTiO3 (PIN-PMN-PT) piezoelectric [001]c fraction ≥97% synthesized by templated grain growth. The addition of CuO significantly promotes densification oriented growth in the ceramics, leading full development at dramatically reduced times temperatures. Moreover, dopant remarkably enhances properties textured while maintaining high phase transition temperatures large coercive fields. Doping 0.125 wt. % yields d33 = 927 pC/N, d33* 1510 pm/V, g33 43.2 × 10−3 Vm/N, Kp 0.87, Ec=8.8 kV/cm, tan δ 1.3%, which are best values reported so far PIN-PMN-PT ceramics. coefficient is mainly from reversible response, irreversible contribution being on order 13.1%. We believe that work not only facilitates closing performance gap between single crystals but also can expand relaxor-PT application