Dielectric constant calculation based on mixture equations of binary composites at microwave frequency
| Autor: | Wen-Shiush Chen, Ming-Yueh Hsieh |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
010302 applied physics
Materials science Process Chemistry and Technology Binary number Relative permittivity Fraction (chemistry) 02 engineering and technology Dielectric 021001 nanoscience & nanotechnology 01 natural sciences Surfaces Coatings and Films Electronic Optical and Magnetic Materials Condensed Matter::Materials Science Matrix (mathematics) Volume (thermodynamics) 0103 physical sciences Materials Chemistry Ceramics and Composites Composite material 0210 nano-technology Porosity Microwave |
| Zdroj: | Ceramics International. 43:S343-S350 |
| ISSN: | 0272-8842 |
| DOI: | 10.1016/j.ceramint.2017.05.320 |
| Popis: | The effective microwave dielectric constants of binary composites are examined through mixture equations in this paper. The ratios of dielectric constant of filler material to that of matrix material are studied from 0.77 to 24.55 and 0.21 to 9.53 in small and large volume fractions of filler material, respectively. The most adequate mixture equation for predicting the dielectric constants of binary composites is suggested. It was found that all mixture equations could give reasonably good predictions under similar dielectric constant between filler and matrix material situation and in the small volume fraction region. The effective medium theory model matched well for all volume fractions and a small amount secondary phase existence. Moreover, precision can be improved by the porosity corrected relative permittivity of composites. |
| Databáze: | OpenAIRE |
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