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Abstract <p>The barium strontium titanate (Ba<sub>1–<i>x</i></sub>Sr<sub><i>x</i></sub>TiO<sub>3</sub>) ceramics have been synthesized using the solid-state reaction method. Ba<sub>1–<i>x</i></sub>Sr<sub><i>x</i></sub>TiO<sub>3</sub> ceramics are sintered at 1000°C for 3 h. The X-ray diffraction confirmed perovskite tetragonal barium strontium titanate ceramics. It is found that with the increase of strontium content in Ba<sub>1–<i>x</i></sub>Sr<sub><i>x</i></sub>TiO<sub>3</sub> the unit cell parameters, dielectric loss decreased. The microstructure of barium strontium titanate is examined using field emission scanning electron microscopy it is found that with the addition of strontium, the average grain size has decreased for all compositions of Ba<sub>1–<i>x</i></sub>Sr<sub><i>x</i></sub>TiO<sub>3</sub> ceramics. Curie temperature is decreased with the addition of strontium in Ba<sub>1–<i>x</i></sub>Sr<sub><i>x</i></sub>TiO<sub>3</sub> ceramics. The variation of relative permittivity (ɛ<sub>r</sub>) and loss tangent (tanδ) with temperature of Ba<sub>1–<i>x</i></sub>Sr<sub><i>x</i></sub>TiO<sub>3</sub> ceramics was studied.</p>

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Structural, Electrical, and Microstructural Properties of Barium Strontium Titanate Ceramics

  • 期刊论文

  • 发表日期：

    2025年7月2日

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  • M. Srinivasa Reddy,
  • A. Shiva Kumar

摘要

Abstract

The barium strontium titanate (Ba1–xSrxTiO3) ceramics have been synthesized using the solid-state reaction method. Ba1–xSrxTiO3 ceramics are sintered at 1000°C for 3 h. The X-ray diffraction confirmed perovskite tetragonal barium strontium titanate ceramics. It is found that with the increase of strontium content in Ba1–xSrxTiO3 the unit cell parameters, dielectric loss decreased. The microstructure of barium strontium titanate is examined using field emission scanning electron microscopy it is found that with the addition of strontium, the average grain size has decreased for all compositions of Ba1–xSrxTiO3 ceramics. Curie temperature is decreased with the addition of strontium in Ba1–xSrxTiO3 ceramics. The variation of relative permittivity (ɛr) and loss tangent (tanδ) with temperature of Ba1–xSrxTiO3 ceramics was studied.