Effects of Sr/Ti ratio on the microstructure and energy storage properties of nonstoichiometric SrTiO3 ceramics
Source abstract
Abstract
Abstract Effects of nonstoichiometric SrTiO 3 ceramics have been investigated in the range of Sr/Ti=0.994–1.004. A cubic perovskite structure is maintained at all compositions without any secondary phase. Grain size increases at the beginning and then decreases with increasing Sr/Ti ratio. The highest breakdown strength and energy density are obtained at Sr/Ti=0.996, 283 kV/cm and 1.21 J/cm 3 , respectively, which are higher than that of stoichiometric SrTiO 3 ceramic (210 kV/cm of breakdown strength, 0.7 J/cm 3 of energy density). Sr/Ti>1 ST ceramics are prone to semi-conductivity process. Among them, the ST ceramic at Sr/Ti=1.004 has the highest permittivity, 2455.
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Research context
OpenAlex topics: Ferroelectric and Piezoelectric Materials · Dielectric materials and actuators · Microwave Dielectric Ceramics Synthesis
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (23)
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1. Optimization of energy storage density in ceramic capacitors10.1088/0022-3727/29/1/037 ↗
2. Energy storage in Ceramic Dielectrics10.1007/BF00555636 ↗
3. Electrical hetero-structure of Nd0.1Sr0.9TiO3 ceramic for energy storage applications10.1007/s10854-012-0871-x ↗
4. Structure and dielectric properties of NdxSr1−xTiO3 ceramics for energy storage application10.1007/s10854-012-0798-2 ↗
5. Dielectric properties and phase transition mechanisms in Sr1−xBaxTiO3 solid solution at low doping concentration10.1016/S0025-5408(01)00644-4 ↗
6. Nonlinear dc electric-field dependence of the dielectric permittivity and cluster polarization of Sr1−xMnxTiO3 ceramics10.1063/1.2717874 ↗
7. Broad-band dielectric spectroscopy analysis of relaxational dynamics in Mn-doped SrTiO3 ceramics10.1103/PhysRevB.73.104113 ↗
8. Polar behavior in Mn-doped SrTiO3 ceramics10.1063/1.1920414 ↗
9. Dielectric polarization processes in Bi:SrTiO310.1016/S0022-3697(99)00281-4 ↗
10. Oxygen-vacancy-related low-frequency dielectric relaxation and electrical conduction in Bi:SrTiO310.1103/PhysRevB.62.228 ↗
11. Dielectric relaxation behavior of Bi:SrTiO3: I. The low temperature permittivity peak10.1016/S0955-2219(98)00027-2 ↗
12. Oxygen-vacancy-related dielectric anomalies in La: SrTiO310.1063/1.124059 ↗
13. Effect of Pr substitution on structural and dielectric properties of SrTiO3
14. Effects of Gd substitution on microstructures and low temperature dielectric relaxation behaviors of SrTiO3 ceramics10.1063/1.4745876 ↗
15. Energy storage in ceramic dielectrics10.1111/j.1151-2916.1990.tb06513.x ↗
16. Effect of liquid-phase sintering on the breakdown strength of barium titanate10.1111/j.1551-2916.2007.01637.x ↗
17. Effect of SiO2 additives on the microstructure and energy storage density of SrTiO3 ceramics
18. Effects of SrO–B2O3–SiO2 glass additive on densification and energy storage properties of Ba0.4Sr0.6TiO3 ceramics10.1007/s10854-012-0635-7 ↗
19. Effect of nonstoichiometry on the microstructure and dielectric properties of strontium titanate ceramics10.1016/j.jeurceramsoc.2005.03.137 ↗
20. Ferroelectricity and superparamagnetism in Sr/Ti nonstoichiometric SrTiO310.1103/PhysRevB.85.104108 ↗
21. Effects of Bi nonstoichiometry in (Bi0.5+xNa) TiO3 ceramics10.1063/1.3525370 ↗
22. Effects of Na nonstoichiometry in (Bi0.5Na0.5+x)TiO3 ceramics10.1063/1.3275704 ↗
23. Influence of A-site nonstoichiometry on sintering, microstructure and electrical properties of (Bi0.5Na0.5)TiO3 ceramics10.1016/j.matchemphys.2008.02.007 ↗