Polyvinylidene fluoride-modified BaTiO3 composites with high dielectric constant and temperature stability
| Autor: | Qing Xiao, Lei Li, Xiang Ming Chen, Bing Qing Zhang |
|---|---|
| Rok vydání: | 2013 |
| Předmět: |
Arrhenius equation
Materials science Process Chemistry and Technology Dielectric Hot pressing Polyvinylidene fluoride Surfaces Coatings and Films Electronic Optical and Magnetic Materials chemistry.chemical_compound symbols.namesake chemistry Volume fraction Materials Chemistry Ceramics and Composites symbols Composite material High-κ dielectric |
| Zdroj: | Ceramics International. 39:S3-S7 |
| ISSN: | 0272-8842 |
| DOI: | 10.1016/j.ceramint.2012.10.025 |
| Popis: | Polyvinylidene fluoride (PVDF)-modified X7R-type BaTiO 3 (BTO) composites were prepared by hot pressing, and the dielectric properties were investigated. The dielectric constant of the PVDF–BTO composites at 1 kHz increased significantly with increasing the volume fraction of BTO up to 0.5, and good temperature stability of dielectric constant was obtained for the composites, which benefited from the temperature-stable dielectric constant of the modified BaTiO 3 . Two significant dielectric relaxations were observed for the PVDF–BTO composites, and they fit the Vogel–Fulcher and Arrhenius fittings, respectively. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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