Microwave dielectric properties of BaO-2CeO(2)-nTiO(2) ceramics
| Autor(en): | Sreemoolanadhan, H Sebastian, MT Ratheesh, R Blachnik, R Woehlecke, M Schneider, B Neumann, M Mohanan, P |
Stichwörter: | barium cerium titanates; CE; Chemistry; Chemistry, Inorganic & Nuclear; Chemistry, Physical; dielectric resonators; EQUILIBRIA; low-loss materials; microwave ceramics; MODE; RARE-EARTH | Erscheinungsdatum: | 2004 | Herausgeber: | ACADEMIC PRESS INC ELSEVIER SCIENCE | Journal: | JOURNAL OF SOLID STATE CHEMISTRY | Volumen: | 177 | Ausgabe: | 11 | Startseite: | 3995 | Seitenende: | 4000 | Zusammenfassung: | The BaO-2CeO(2)-nTiO(2) ceramics with n = 3, 4 and 5 have been prepared with CeO2 as starting material. The ceramics have been characterized using scanning electron microscopy, X-ray diffraction, Raman and X-ray photoelectron spectroscopy techniques. The microwave dielectric properties have been measured using standard dielectric resonator techniques. BaO-2CeO-3TiO(2) (123), BaO-2CeO-4TiO(2) (124) and BaO-2CeO-5TiO(2) (125) ceramics showed dielectric constants of 38, 27 and 32, respectively. All the ceramics showed fairly good unloaded Q-factors. 124 and 125 compounds exhibited low tau(f) values, while 123 showed a high tau(f) value. (C) 2004 Elsevier Inc. All rights reserved. |
ISSN: | 00224596 | DOI: | 10.1016/j.jssc.2004.08.005 |
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