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首页> 外文期刊>Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics >Effect of BiAlO_3 modification on the stability of antiferroelectric phase in PbZrO_3 ceramics prepared by conventional solid state reaction
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Effect of BiAlO_3 modification on the stability of antiferroelectric phase in PbZrO_3 ceramics prepared by conventional solid state reaction

机译：BiAlO_3改性对常规固相反应制备的PbZrO_3陶瓷中反铁电相稳定性的影响

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摘要

In this paper, we report on the polycrystalline (Pb_(1-3x/2)Bi_x)(Zr_(1-3x/4)Al_x)O_3 (PZO-BAO) ceramics, with x = 0.0-0.3, prepared by conventional solid state reaction. The crystal structure and thermal and dielectric properties of the sintered ceramics were investigated as a function of composition by means of X-ray diffraction (XRD), differential scanning calorimetry (DSC) and dielectric spectroscopy. The results indicated that the presence of BiAlO_3: BAO in the solid solution decreased the structural stability of the overall perovskite phase. Dielectric, thermal and P-E hysteresis results confirmed that no ferroelectric intermediate phase was seen in the PZO-BAO system. An antiferroelectric phase can be stable in a wide temperature range, indicating that BAO enhanced antiferroelectric phase stability in perovskite PZ manifests by "square" antiferroelectric behavior.
机译：在本文中，我们报告了通过常规固体制备的多晶（Pb_（1-3x / 2）Bi_x）（Zr_（1-3x / 4）Al_x）O_3（PZO-BAO）陶瓷，其x = 0.0-0.3状态反应。通过X射线衍射（XRD），差示扫描量热法（DSC）和介电谱研究了烧结陶瓷的晶体结构以及热和介电性能随组成的变化。结果表明，固溶体中BiAlO_3：BAO的存在降低了整个钙钛矿相的结构稳定性。介电，热和P-E磁滞结果证实，在PZO-BAO系统中未见铁电中间相。反铁电相可在较宽的温度范围内保持稳定，这表明钙钛矿型PZ中BAO增强的反铁电相稳定性表现为“方形”反铁电行为。

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