relation: http://acta.bibl.u-szeged.hu/55941/ title: Improved electrical response in GdMnO3 doped (K, Na)NbO3 piezoelectric speaker creator: Bucur Alexandra Ioana creator: Bucur Raul Alin description: [(K0.368Na0.432)Li0.5][Nb0.86Sb0.04Ta0.1]O3 doped with 0.5 mol% GdMnO3 piezoelectric speakers were obtained, with good frequency sensibility in the range 20 Hz – 20 kHz. The additive used distorts the crystalline structure to a mixture of orthorhombic and tetragonal phases at room temperature. Also the dopants used shift the high temperature phase transitions toward room temperature. Good piezoelectric properties were obtained for doped samples, with an optimum piezoelectric charge constant d33 of 127 for [(K0.368Na0.432)Li0.5][Nb0.86Sb0.04Ta0.1]O3 - 0.5 mol % GdMnO3, a planar coupling coefficient of 0.39 and a quality factor of 102. date: 2015 type: Konferencia vagy workshop anyag type: NonPeerReviewed format: part language: hu identifier: http://acta.bibl.u-szeged.hu/55941/1/proceedings_of_isaep_2015_113-117.pdf identifier: Bucur Alexandra Ioana; Bucur Raul Alin: Improved electrical response in GdMnO3 doped (K, Na)NbO3 piezoelectric speaker.