Indium substituted BiFe_1-xIn_xO₃ (x = 0.0, 0.1, 0.2, 0.3, 0.4, 0.5, 0.6) ceramics were synthesised via solid reactions method. The samples’ microstructure, dielectric, electrical and magnetic properties were investigated by X-rays diffractions (XRD), scanning electron microscopy (SEM), dielectric analyser, electrometer and vibrating sample magnetometer (VSM). From XRD, pristine BFO sample exhibited single phase rhombohedral crystal structure, space group R3c 161. Introduction of In⁺³ into BFO matrix promoted the growth of BiInO₃ and Bi₂₅FeO₄₀ phases, however, BFO remained the dominant phase up to x = 0.4. Form SEM results, BFO exhibited large homogeneous grain morphology with average grain size 2.04 µm, that get distorted, decreased with introduction of In⁺³. From magnetic analysis, pure BFO showed antiferromagnetic behaviour while weak ferromagnetic was observed with In³⁺ substitution. The highest magnetisation 0.04 emu/g and magnetic remanence 6.22 × 10⁻⁴ emu/g were recorded for sample x = 0.3. Dielectric measurement showed increasing of dielectric constant εʹ_r from 26.5 for pure BFO to 372 for sample x = 0.6. The leakage current density was reduced with x from 9.24 × 10⁻⁴ A/cm² for pure BFO to 9.8 × 10⁻⁷ for sample x = 0.6. A/cm². Impedance spectroscopy and dielectric modulus were used to further understand the dielectric behaviour of the samples and the relevant results were analysed and discussed in detail.

 通过固体反应法合成了铟取代的BiFe _{1- x} In _x O ₃ ( x = 0.0, 0.1, 0.2, 0.3, 0.4, 0.5, 0.6)陶瓷。通过X射线衍射（XRD）、扫描电子显微镜（SEM）、介电分析仪、静电计和振动样品磁强计（VSM）对样品的微观结构、介电、电和磁性能进行了研究。从 XRD 来看，原始 BFO 样品表现出单相菱形晶体结构，空间群 R3c 161。将 In ⁺³引入 BFO 基体促进了 BiInO ₃和 Bi ₂₅ FeO ₄₀相的生长，然而，BFO 仍然是主要相，直到x = 0.4。从 SEM 结果来看，BFO 表现出大的均匀晶粒形态，平均晶粒尺寸为 2.04 µm，随着 In ^{+3 的}引入而变形，减小。从磁性分析来看，纯 BFO 表现出反铁磁性，而 In ³⁺取代则观察到弱铁磁性。对于样品x  = 0.3 ，记录到最高磁化强度 0.04 emu/g 和剩磁 6.22 × 10 ^-4 emu/g 。介电测量显示介电常数ε ʹ _r从纯 BFO 的 26.5 增加到样品x  = 0.6 的372 。漏电流密度随x从 9.24 × 10 ^-4 A/cm ^{2 降低}对于纯 BFO ，样品x  = 0.6为 9.8 × 10 ^-7。A/cm ²。利用阻抗谱和介电模量进一步了解样品的介电行为，并对相关结果进行了详细分析和讨论。