Bucur Alexandra Ioana and Bucur Raul Alin: Improved electrical response in GdMnO3 doped (K, Na)NbO3 piezoelectric speaker.
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Abstract
[(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.
| Item Type: | Conference or Workshop Item |
|---|---|
| Journal or Publication Title: | Proceedings of the International Symposium on Analytical and Environmental Problems |
| Date: | 2015 |
| Volume: | 21 |
| ISBN: | 978-963-306-411-5 |
| Page Range: | pp. 113-117 |
| Event Title: | International Symposium on Analytical and Environmental Problems (21.) (2015) (Szeged) |
| Related URLs: | http://acta.bibl.u-szeged.hu/55892/ |
| Uncontrolled Keywords: | Elektrokémia |
| Additional Information: | Bibliogr.: p. 116-117. ; ill. ; összefoglalás angol nyelven |
| Date Deposited: | 2018. Dec. 05. 13:41 |
| Last Modified: | 2022. Aug. 08. 15:47 |
| URI: | http://acta.bibl.u-szeged.hu/id/eprint/55941 |
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