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(Ba0.4Sr0.6)TiO3 (BST) paraelectric ceramics (Tc ≈ −67 °C) with various grain sizes (0.6–1.8 μm) were synthesized by oxalate co-precipitation method and prepared by conventional solid-state sintering process. With decreasing grain sizes, the dielectric breakdown strength increases gradually. Based on the conductivity activation energy analysis, it was found that the larger grain boundary density plays...
(Ba0.4Sr0.6)TiO3 (BST) paraelectric ceramics (Tc ≈ −67 °C) with various grain sizes (0.6–1.8 μm) were synthesized by oxalate co-precipitation method and prepared by conventional solid-state sintering process. With decreasing grain sizes, the dielectric breakdown strength increases gradually. Based on the conductivity activation energy analysis, it was found that the larger grain boundary density plays...
(Ba0.4Sr0.6)TiO3 (BST) ceramics with various grain sizes (0.5–5.6μm) were prepared by conventional solid state reaction methods. The effect of grain size on the energy storage properties of BST ceramics (Tc≈−65°C) was investigated. With decreasing grain sizes, a clear tendency toward the diffuse phase transition was observed and the dielectric nonlinearity was reduced gradually, which can be explained...
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