| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1652409 | Materials Letters | 2007 | 4 Pages |
Sb2O5 were selected to substitute (Nb0.8Ta0.2)2O5 and the effects of substitution on the dielectric properties of Ag(Nb0.8Ta0.2)O3 ceramics were studied. The dielectric properties of Ag(Nb0.8Ta0.2)1−xSbxO3 ceramics were found to be improved by the substitution of Sb for Nb/Ta. The ε value of Ag(Nb0.8Ta0.2)1−xSbxO3 ceramics sintered at 1060 °C increased from 430 to 825 with x increasing from 0 to 0.08, the tanδ value decreased sharply from 0.0085 to 0.0023 (at 1 MHz) with x increasing from 0 to 0.04, and then kept to a lower tanδ value ∼ 0.0024 with x to 0.08. The TCC values decreased from + 1450 ppm/°C for x = 0 to − 38.5 ppm/°C for x = 0.08. The Ag(Nb0.8Ta0.2)1−xSbxO3 ceramics with x = 0.08 sintered at 1050 °C exhibited the optimum dielectric properties of ε ∼ 854, tanδ ∼ 0.0024 (1 MHz), and TCC ∼ 36.86 ppm/°C.
