研究目的
Investigating the doping effects of ZnNb2O6 on the phase, microstructure, and energy storage properties of (Sr0.98Ca0.02)TiO3 paraelectric ceramics.
研究成果
The doping of ZnNb2O6 into Sr0.98Ca0.02TiO3 ceramics forms a stable solid solution, affecting the microstructure, dielectric properties, and energy storage performance. The study provides insights into optimizing these ceramics for energy storage applications.
研究不足
The study focuses on the effects of ZnNb2O6 doping on Sr0.98Ca0.02TiO3 ceramics, but the potential effects of other dopants or processing conditions are not explored. The energy storage densities reported are relatively low due to the thickness of the samples.
1：Experimental Design and Method Selection:
Traditional electroceramic processing was used to prepare ZnNb2O6 doped Sr
2：98Ca02TiO3 ceramics. XRD and Raman spectroscopy were employed to investigate phase structures and doping effects. SEM was used to observe surface morphology and evaluate grain growth. P-E curves were measured to calculate energy storage density and efficiency. Sample Selection and Data Sources:
Analytical purity powders of TiO2, SrCO3, CaCO3, ZnO, and Nb2O5 were used.
3：List of Experimental Equipment and Materials:
X-ray diffractometer (6100, Shimadazu, Japan), scanning electron microscope (JSM 6610, Jeol, Tokyo, Japan), LCR meter (E4980AL, Keysight, USA), TF analyzer 2000E (aixACCT, Aachen, Germany).
4：Experimental Procedures and Operational Workflow:
Powders were ball-milled, calcined, pressed into pellets, debinded, and sintered at various temperatures.
5：Data Analysis Methods:
Dielectric properties were measured and analyzed, and energy storage densities were calculated from P-E loops.
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