In this study, Fe2O3 and TiO2 codoped Li-0.05(Na0.5K0.5)(0.95)(Nb0.975Sb0.025)O-3[(1 -x) Li-0.05(Na0.5K0.5)(0.95)(Nb0.975Sb0.025)O-3-x(Fe2O3-2TiO(2)) (x=0-0.008)] ceramics were prepared by conventional solid state reaction method, and the microstructure and electrical properties of these samples were investigated. The X-ray diffraction and Raman scattering results show the phase structure of the ceramics undergoes with the increase of Fe2O3-2TiO(2) content. The grain size distribution of non-doped Li-0.05(Na0.5K0.5)(0.95)(Hb(0.97)Sb(0.025))O-3 ceramics was relatively wide. The microstructure was composed of grains ranging 0.2-3.0 mu m in size. However, with increasing Fe2O3-2TiO(2) content, the grain size distribution became relatively narrow. Meanwhile, the piezoelectric coefficient (d(33)) and electromechanical coupling coefficient (k(p)) showed peak values of 252 pC/N, and 0.424, respectively, which were achieved in the sample with chi=0.002 sintered at 1020 degrees C. (C) 2011 Elsevier B.V. All rights reserved.