研究目的
Investigating the effects of sintering temperature and doping amount of gadolinium ions on the microstructures and electrical properties of sol gel derived Ba (Zr0.1Ti0.9) O3 + xGd ceramics.
研究成果
The study successfully prepared lead-free Ba (Zr0.1Ti0.9) O3-x Gd ceramics by sol–gel method, showing improved dielectric and piezoelectric properties with Gd3+ doping. The optimal doping amount was found to be 0.5 mol%, achieving high piezoelectric charge coefficient and dielectric constant with minimal dielectric loss.
研究不足
The study is limited to the effects of Gd3+ doping on BZT ceramics prepared by sol–gel method. The potential for optimization in doping levels and sintering conditions is suggested for future studies.
1：Experimental Design and Method Selection:
Sol–gel method was used to synthesize (Ba1?xGdx) (Zr0.1Ti0.9) O3. The aim was to prepare gadolinium ions doped barium zirconate titanate and discuss the effect of gadolinium ion doping amount on the structure and electrical properties.
2：1Ti9) OThe aim was to prepare gadolinium ions doped barium zirconate titanate and discuss the effect of gadolinium ion doping amount on the structure and electrical properties.
Sample Selection and Data Sources:
2. Sample Selection and Data Sources: Analytical reagent grade chemicals were used, including barium acetate, zirconium nitrate, butyl titanate, Gd2O3, manganese acetate, and magnesium acetate.
3：List of Experimental Equipment and Materials:
XRD (Rigaku D/max 2500V/pc), SEM (Hitachi S-4800), Automatic LCR Meter 4225 bridge, piezoelectric ceramic high voltage poling equipment (ET2673D-4), quasistatic piezoelectric constant testing meter (LC2730A), HP4294A impedance analysis.
4：Experimental Procedures and Operational Workflow:
The sol was prepared, dried to be gelatin, presynthesized, mixed with PVA binder, pressed into thin disks, sintered at 1250–1350 °C, and then coated with silver pulp for measurements.
5：Data Analysis Methods:
XRD analysis, SEM analysis, dielectric and piezoelectric properties measurement.
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