Dielectric properties of powder-sol-derived strontium barium niobate/strontium barium titanate composite ceramics
| Autor: | Limin Dong, Feng-chun Wang, Ze Wu, Xianyou Zhang, Lianwei Shan |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Strontium
Materials science Composite number Analytical chemistry chemistry.chemical_element 02 engineering and technology Dielectric Strontium barium niobate 010402 general chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences 0104 chemical sciences Electronic Optical and Magnetic Materials Perovskite chemistry.chemical_compound chemistry visual_art Barium titanate visual_art.visual_art_medium Dielectric loss Ceramic 0210 nano-technology |
| Zdroj: | Ferroelectrics. 522:144-151 |
| ISSN: | 1563-5112 0015-0193 |
| DOI: | 10.1080/00150193.2018.1392781 |
| Popis: | In this paper, strontium barium niobate/strontium barium titanate [SrxBa1-xNb2O6/SrxBa1-xTiO3] composite ceramics with different Sr2+/Ba2+ ratio were fabricated using a Powder-Sol (P-S) method. The formation process of SBN/SBT was studied by TG-DTA. It is found that the tetragonal tungsten bronze (TTB) phase and perovskite phase were co-present in the composite ceramics, and the Sr2+/Ba2+ ratio has an influence on the proportion between SBN and SBT. SEM results show that samples are homogeneous and fine-grained. The dielectric properties of composite ceramics were studied by impedance analyzer, and indicates that the dielectric constant and dielectric loss could be well regulated by Sr2+/Ba2+ ratio. |
| Databáze: | OpenAIRE |
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