In the present work, the phase analysis, different relaxation mechanisms, dominant conduction mechanism and energy storage performance of spark plasma sintered PbZr_0.52Ti_0.48O₃ (PZT) material at different temperatures (800, 850, 900, and 950 °C) are presented. The XRD analysis indicates difference in phase constitution of the synthesized PZT ceramics in which the sample sintered at 900 °C and 950 °C showed presence of multiple phases. Impedance and electric modulus studies are conducted on the samples over the frequency range 0.01 Hz–1 MHz at room temperature. The analysis revealed approximated Debye type behaviour for low frequency relaxation process in all the samples. The separation of grain and grain boundary relaxation process are observed in the frequency dependent imaginary electrical modulus M″ plots and complex modulus spectra rather than in Bode plots and Nyquist plots. Such contrast was attributed to high resistance and low capacitance of the bulk contribution. Complex impedance measurements, thereby estimating ac conductivity and electric modulus have established a distinctive feature for the PZT spark plasma sintered at 900 °C. The resultant electrical properties of the materials are analyzed through understanding the grain and grain boundary relaxation mechanisms and drawing a possible connection with crystal structures of the sintered materials. PZT sintered at 900 °C, as compared to other counterparts, has shown unique combination of tetragonal and monoclinic crystal structures of constituent phases which exhibits highest impedance and electrical modulus among the samples. The resistances of grain and grain boundary of sample sintered at 900 °C are found to be 1.06 × 10⁵ Ω and 5.80 × 10⁸ Ω respectively. The saturation polarization 17.32 μC/cm² and the coercive field 5.92 kV/cm of the sample are also found highest and lowest respectively for the 900 °C sintered sample among all the samples studied. The energy storage efficiency of the PZT sintered at 900 °C is also highest ~66.38%.

本文对火花等离子体烧结PbZr _0.52 Ti _0.48 O ₃的相分析，不同的弛豫机理，主导传导机理和储能性能进行了研究。介绍了在不同温度（800、850、900和950°C）下的（PZT）材料。XRD分析表明合成的PZT陶瓷的相组成不同，其中在900℃和950℃烧结的样品显示存在多相。在室温下，在0.01 Hz–1 MHz的频率范围内对样品进行阻抗和电模量研究。分析揭示了所有样品中低频弛豫过程的近似德拜型行为。晶粒和晶界弛豫过程的分离在与频率相关的虚数模量M''图和复数模量谱中观察到，而不是在Bode图和Nyquist图中观察到。这种对比归因于整体贡献的高电阻和低电容。复杂的阻抗测量 因此，估计交流电导率和电模量已为900°C烧结的PZT火花等离子体建立了鲜明的特征。通过了解晶粒和晶界弛豫机理并得出与烧结材料晶体结构的可能联系，来分析材料的最终电性能。与其他同类产品相比，在900°C烧结的PZT表现出组成相的四方和单斜晶体结构的独特组合，在样品中具有最高的阻抗和电模量。在900°C下烧结的样品的晶粒和晶界电阻为1.06×10 通过了解晶粒和晶界弛豫机理并得出与烧结材料晶体结构的可能联系，来分析材料的最终电性能。与其他同类产品相比，在900°C下烧结的PZT表现出组成相的四方和单斜晶体结构的独特组合，在样品中具有最高的阻抗和电模量。发现在900°C下烧结的样品的晶粒和晶界电阻为1.06×10 通过了解晶粒和晶界弛豫机理并得出与烧结材料晶体结构的可能联系，来分析材料的最终电性能。与其他同类产品相比，在900°C下烧结的PZT表现出组成相的四方和单斜晶体结构的独特组合，在样品中具有最高的阻抗和电模量。发现在900°C下烧结的样品的晶粒和晶界电阻为1.06×10 已显示出组成相的四方和单斜晶体结构的独特组合，在样品中具有最高的阻抗和电模量。发现在900°C下烧结的样品的晶粒和晶界电阻为1.06×10 已显示出组成相的四方和单斜晶体结构的独特组合，在样品中具有最高的阻抗和电模量。发现在900°C下烧结的样品的晶粒和晶界电阻为1.06×10⁵  Ω和5.80×10 ⁸ 分别Ω。在所有研究的样品中，样品的饱和极化强度17.32μC/ cm ²和矫顽场5.92 kV / cm也分别在900°C的烧结样品中最高和最低。900°C烧结的PZT的储能效率也最高〜66.38％。