The structural characterizations of Fe-substituted Barium Titanate (Fe–BaTiO₃) ceramics prepared at different sintering temperatures were investigated in this work. The Fe–BaTiO₃ ceramics (with 10 mol% of Fe substitution) were prepared via a conventional solid-state reaction (SSR) method. The structural data were examined by XRD (X-ray Diffraction) and XAS (X-ray Absorption Spectroscopy) techniques. The results revealed the transformation from tetragonal to hexagonal structure with increasing sintering temperature. The measured XANES (X-Ray Absorption Near-Edge Structure) data exhibited the oxidation state of Fe ion as Fe³⁺ in the Fe–BaTiO₃. The comparison between measured and calculated XANES spectra to examine the effect of different sintering temperatures on the local structure around the Ti atom was carried out. Finally, it should be emphasized that the local structure evolution in Fe–BaTiO₃ ceramics may be explored by the XANES investigations.

在这项工作中研究了在不同烧结温度下制备的 Fe 取代钛酸钡 (Fe-BaTiO ₃ ) 陶瓷的结构特征。Fe-BaTiO ₃陶瓷（含 10 mol% Fe 取代物）是通过传统的固态反应 (SSR) 方法制备的。通过XRD（X射线衍射）和XAS（X射线吸收光谱）技术检查结构数据。结果表明，随着烧结温度的升高，四方结构向六方结构转变。测量的 XANES（X 射线吸收近边结构）数据显示Fe-BaTiO ₃中 Fe 离子的氧化态为 Fe ³⁺. 进行了测量和计算 XANES 光谱之间的比较，以检查不同烧结温度对 Ti 原子周围局部结构的影响。最后，应该强调的是，可以通过 XANES 研究来探索Fe-BaTiO ₃陶瓷的局部结构演变。