(Ag1-xNax)(Nb1-yTay)O3 Dielectric Ceramic Prepared through Citrate Precursor Method |
| Journal |
Key Engineering Materials (Volumes 280 - 283) |
| Volume |
High-Performance Ceramics III |
| Edited by |
Wei Pan, Jianghong Gong, Chang-Chun Ge and Jing-Feng Li |
| Pages |
15-18 |
| DOI |
10.4028/www.scientific.net/KEM.280-283.15 |
| Online since |
February, 2007 |
| Authors |
Mi Xiao,
Xia Wan Wu,
Kuan Xiu Song
|
| Keywords |
ANNT, Citrate Precursor, Large Dielectric Constant, Wet Chemical Method |
| Abstract |
(Ag1-xNax)(Nb1-yTay)O3 (ANNT) dielectric ceramic material with perovskite structure was prepared through a wet chemical synthetic method. The precursor solution for the material was obtained from the citric acid solutions of different metal oxides or nitrates with exact molar ratio by a sol-process. The precursor solution thus prepared was then heated under an infrared lamp to
evaporate the solvent. This period showed a self-propagating combustion behavior. Ceramic powder was obtained after the residue was calcined at a certain temperature. It is proved that ANNT sintered at 1040°C was finely grained. The obtained ceramic showed excellent high frequency dielectric properties with considerable high dielectric constant and rather low dissipation factor under 1MHz. |
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