Stabilized temperature-dependent dielectric properties of Dy-doped BaTiO 3 ceramics derived from sol-hydrothermally synthesized nanopowders
Source abstract
Abstract
Abstract Monodisperse Dy-doped BaTiO3 nanopowders (xDBT) with x=0, 1, 2, 3, 4, 5 mol% has been synthesized via a modified sol-hydrothermal method. And the influence of Dy3+ on the crystal structure, micromorphology and dielectric properties of xDBT ceramics has been investigated. It’s found that Dy3+ slightly affects the shape of the xDBT nanopowders, whereas excess Dy3+ would cause the formation of the Dy(OH)3 impurity. In addition, the grain growth during a sintering process is suppressed with the Dy3+ incorporation. Further, the possible occupation of the Dy3+ has been extrapolated based on the variation of lattice volume and phase composition. A self-compensation mode involving the simultaneously occupation at Ba-site and Ti-site is observed in the samples with 4 mol% Dy. Importantly, stabilized temperature-dependent dielectric properties has been achieved at x=4 mol%, resulting from the diffuse phase transition behaviors (the calculated diffuse factor γ=1.952) induced by chemical inhomogeneity.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Ferroelectric and Piezoelectric Materials · Dielectric properties of ceramics · Microwave Dielectric Ceramics Synthesis
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (32)
Show source-provided references
1. Design of piezoelectric transducer layer with electromagnetic shielding and high connection reliability10.1088/0964-1726/21/7/075032 ↗
2. Low temperature synthesis and characterization of lanthanide-doped BaTiO3 nanocrystals10.1039/c3cc49575b ↗
3. Electronic structure, optical and dielectric properties of BaTiO3/CaTiO3/SrTiO3 ferroelectric superlattices from first-principles calculations10.1039/C5TC01622C ↗
4. Progress in the synthesis of nanocrystalline BaTiO3 powders for MLCC10.1111/j.1744-7402.2005.02008.x ↗
5. Dielectric properties of fine-grained barium titanate based X7R materials10.1111/j.1151-2916.1999.tb02141.x ↗
6. Structural evolution of BaTiO3 nanocrystals synthesized at room temperature
7. A-site strain and displacement in Ba1-xCaxTiO3 and Ba1–xSrxTiO3 and the consequences for the Curie temperature10.1021/cm502158n ↗
8. Chemical investigation of Fe3+/Nb5+-doped barium titanate ceramics10.1016/j.ceramint.2012.10.142 ↗
9. Effect of MgO and Y2O3 doping on the formation of core-shell structure in BaTiO3 ceramics10.1111/jace.12372 ↗
10. The influence of A-site rare earth ion size in controlling the Curie temperature of Ba1−xRExTi1−x/4O310.1002/adfm.201201705 ↗
11. Core-satellite BaTiO3@SrTiO3 assemblies for a local compositionally graded relaxor ferroelectric capacitor with enhanced energy storage density and high energy efficiency10.1039/C4TC02291B ↗
12. Studies of dielectric properties of rare earth (Dy, Tb, Eu) doped barium titanate sintered in pure nitrogen10.1016/j.ceramint.2011.04.042 ↗
13. Doping mechanisms and electrical properties of La-doped BaTiO3 ceramics10.1016/S1466-6049(01)00128-3 ↗
14. Electrical properties of Yb-doped BaTiO310.1143/JJAP.48.111406 ↗
15. Temperature stability in Dy-doped (Ba0.99Ca0.01)(Ti0.98Zr0.02)O3 lead-free ceramics with high piezoelectric coefficient10.1111/j.1551-2916.2011.04744.x ↗
16. Dysprosium doped dielectric materials for sintering in reducing atmospheres10.1023/A:1009937310444 ↗
17. Influence of sintering temperature on core-shell structure evolution and reliability in Dy modified BaTiO3 dielectric ceramics10.1002/pssa.201400013 ↗
18. Microstructure and dielectric properties of Dy/Mn doped BaTiO3 ceramics10.1016/j.ceramint.2013.08.092 ↗
19. Doping behaviors of dysprosium, yttrium and holmium in BaTiO3 ceramics10.1016/j.jeurceramsoc.2008.10.021 ↗
20. Preparation and characterization of monodispersed BaTiO3 nanocrystals by sol–hydrothemal method10.1016/j.jcrysgro.2012.11.019 ↗
21. Size-controlled synthesis of BaTiO3 nanocrystals via a hydrothermal route10.1016/j.matlet.2008.04.022 ↗
22. One-step surfactant-free hydrothermal synthesis of platelike sodium niobate template powders10.1111/jace.13237 ↗
23. Hydrothermal microwave: a new route to obtain photoluminescent crystalline BaTiO3 nanoparticles10.1021/cm801638d ↗
24. Solution-based growth of monodisperse cube-like BaTiO3 colloidal nanocrystals10.1021/cm9038768 ↗
25. Defects characterization of Dy-doped BaTiO3 ceramics via electron paramagnetic resonance10.1016/j.jeurceramsoc.2014.02.003 ↗
26. Effect of dysprosium oxide addition on the microstructure and dielectric properties of BaTiO3 ceramics10.3365/eml.2010.12.145 ↗
27. Preparation, characterization, and properties of Dy-doped small-grained BaTiO3 ceramics10.1111/j.1151-2916.1977.tb15479.x ↗
28. Effects of multi-doping of rare-earth oxides on the microstructure and dielectric properties of BaTiO310.1016/j.jallcom.2010.04.085 ↗
29. Dielectric properties of BaTiO3 co-doped with Er2O3 and MgO10.1143/JJAP.40.4952 ↗
30. High-permittivity double rare-earth-doped barium titanate ceramics with diffuse phase transition10.1111/j.1551-2916.2006.00893.x ↗
31. Coherency strain enhanced dielectric-temperature property of rare-earth doped BaTiO310.1063/1.4798273 ↗
32. Effect of Dy substitution on structural and dielectric properties in Ba1−3xDy2xTi0.9Sn0.1O310.1016/j.ceramint.2015.04.133 ↗