Structural and electrical properties of Zr-doped K0.48Na0.52NbO3 ceramics: ¿Hard¿ lead-free piezoelectric Héctor Beltrán-Mir; Xavier Vendrell; Emerson Luiz dos Santos Veiga; Lourdes Mestres; Eloísa Cordoncillo;

Effect of antimony content on electrical and structural properties of 0.98(K0.48Na0.52)0.95Li0.05Nb1¿xSbxO3¿0.02Ba0.5(Bi0.5Na0.5)0.5ZrO3 ceramics Brenda Carreño-Jiménez; María Elena Villafuerte-Castrejón; Armando Reyes-Montero; Rigoberto López-Juárez;