Preparation, characterization and dielectric behaviour of some yttrium doped strontium stannates

[摘要] Samples of Sr$_{(1–3x/2)}$Y$_x$SnO3 are prepared by usual solid state reaction route. X-ray diffraction studies confirm the formation of single cubic perovskite single phase. The dielectric constant and dielectric loss at 1 kHz were measured in the temperature range from room temperature up to ≅ 150°C. The dielectric constant decreases and losses increase with increased yttrium content in the samples. The percentage porosity and unit cell parameters are also calculated for the samples.

[学科分类] 材料工程

[关键词] Electronic ceramics;sensors;dielectric constant;strontium stannate.