| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1462056 | Ceramics International | 2012 | 4 Pages |
Abstract
Ba0.5Sr0.5TiO3-Mg2(Ti0.95Sn0.05)O4 composite ceramics have been synthesized by the solid-state reaction. Phase structure, microstructure and microwave dielectric properties have been systematically characterized. The permittivity is tailored to a certain extent with the addition of Mg2(Ti0.95Sn0.05)O4. Both X-ray diffraction (XRD) and back electric image (BEI) analysis show the co-existence of two-phase structures of ABO3 perovskite and A2BO4 spinel structure. A high dielectric tunablity can be obtained and a high Q value can be achieved at microwave frequency. The composition 30Â wt.%Ba0.5Sr0.5TiO3-70Â wt.%Mg2(Ti0.95Sn0.05)O4 exhibits good dielectric properties with É of 79, Q of 152 (at 2.997Â GHz) and T of 15.8% (30Â kV/cm & 10Â kHz) at room temperature, which make it a promising candidate for tunable microwave device applications in the wireless communication system.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Mingwei Zhang, Jiwei Zhai, Xi Yao,