Structure and relaxor behavior of BaTiO3–CaTiO3–SrTiO3 ternary system ceramics
作者： Lingling Zhang , Xusheng Wang , Wei Yang , Hong Liu , Xi Yao
DOI: 10.1063/1.2949253
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摘要: This study prepared (1−x)BaTiO3–xCaTiO3 (x=0–1) (denoted as BCT), (0.95−x)BaTiO3–xCaTiO3–0.05SrTiO3 (x=0.00–0.95) BS5CT), and (0.90–x)BaTiO3–xCaTiO3–0.10SrTiO3 (x=0.00–0.90) BS10CT) ceramics. Their preparation structural dielectric properties were characterized. The results show that the x-ray diffraction (XRD) peaks of BCT, BS5CT, BS10CT ceramics shift toward higher angles with increasing Ca. All samples uniform dense by 1400 °C sintering grain size decreased Ca addition. With Sr cosubstitutions, phase transition temperature (TC) rhombohedral-orthorhombic orthorhombic-tetragonal points disappeared. became increasingly broad relative constant replacement Ba2+ ions Sr2+ Ca2+ reduced lattice hydrostatic pressure moved Curie poin...
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