Dielectric properties of B–site charge balanced Dy–doped SrTiO3 ceramics for energy storage
| Autor: | Zong-Yang Shen, Wen Qin Luo, Qi–Guo Hu, Zhu Mei Wang, Yueming Li |
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| Rok vydání: | 2015 |
| Předmět: |
Materials science
Doping Analytical chemistry chemistry.chemical_element Mineralogy Dielectric Condensed Matter Physics Microstructure Electronic Optical and Magnetic Materials chemistry.chemical_compound chemistry Mechanics of Materials visual_art Materials Chemistry Ceramics and Composites Strontium titanate visual_art.visual_art_medium Dysprosium Dielectric loss Ceramic Electrical and Electronic Engineering High-κ dielectric |
| Zdroj: | Journal of Electroceramics. 34:236-240 |
| ISSN: | 1573-8663 1385-3449 |
| DOI: | 10.1007/s10832-014-9980-7 |
| Popis: | Trivalent rare earth dysprosium doped strontium titanate ceramics with B–site charge balanced formula of Dy x Sr1–x Ti1–x/4O3 (DyST, x = 0.01, 0.02, 0.03, and 0.04) were prepared by solid state reaction method. Single phase with cubic perovskite structure was indexed for all DyST ceramics from their x–ray diffraction patterns. Dense microstructures with grain size lower than 5 μm were observed for DyST ceramics using scanning electron microscope. Both high dielectric constant (e r = 3300 at 1 kHz) and strong breakdown strength (E b > 150 kV/cm) were obtained for DyST ceramics with the composition of x = 0.02. Together with good stability of e r vs. bias electric fields and low dielectric loss (tanδ |
| Databáze: | OpenAIRE |
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