Normal and relaxor ferroelectric behavior in the Ba_1−xPb_x(Ti_1−yZr_y)O₃ solid solutions

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• 作者：F. Si Ahmed^a ; ^b ; K. Taï ; bi^a ; O. Bidault^b ; N. Geoffroy^b ; N. Millot^b ; ^{nadine.millot@u-bourgogne.fr}
• 关键词：Ceramics ; Ferroelectrics ; Solid state reactions ; Dielectric response ; Impedance spectroscopy ; Scanning electron microscopy ; X-ray diffraction ; Low lead ; Diffuse phase transition
• 刊名：Journal of Alloys and Compounds
• 出版年：2017
• 出版时间：5 February 2017
• 年：2017
• 卷：693
• 期：Complete
• 页码：245-256
• 全文大小：2219 K
• 卷排序：693

文摘

The Ba1−xPbx(Ti1−yZry)O3 (BPTZ) ceramics highlight normal or relaxor behavior. The BPTZ system stands out with a very low-lead content compared to PBTZ. The BPTZ relaxor domain appears more expanded compared to BTZ. The BPTZ ceramics show a decrease of Tc when Pb and Zr increase. Compared with PBTZ, some BPZT compositions highlight Tc close to room temperature.