| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1522733 | Materials Chemistry and Physics | 2013 | 6 Pages |
A new synthetic route was used to obtain bismuth rare earth tungstates: BiREWO6, where RE = Y, Gd and Nd. These materials were obtained by microwave radiation in air at 900–1100 °C for 10 min, depend on the rare earth composition in the ceramic. Structural characterization was performed by X-ray powder diffraction, Infrared and Raman spectroscopy. It was observed that all samples are isostructural materials with monoclinic phase with space group A12/m1 and member of the Aurivillius family, as Bi2WO6 ferroelectric phase. It was observed moderated values for dielectric measurements (14<εr′>19 and 0.018 < tg δ > 0.079) at microwaves frequencies, which can be used as Dielectric Resonator Antenna or for size reduction of the electric device.
► New synthetic route to obtain bismuth rare earth tungstates by microwave radiation. ► Vibration spectroscopy was based in Group Theory and observed in FTIR and Raman. ► BiGdWO6 presented simultaneously higher εr′ and smaller tg δ values at microwaves frequencies. ► The samples can be used as a DRA or for size reduction of the electric device.
