Dielectric and structural characterization and effective piezoelectric coefficient of KDP/p-Benzoquinone ceramic composites
| Autor: | M.I. Pérez-Valverde, María Eugenia Mendoza, Jesús M. Siqueiros, J. J. Gervacio-Arciniega |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
010302 applied physics
Piezoelectric coefficient Materials science Hydrogen bond Process Chemistry and Technology 02 engineering and technology Dielectric Conductivity 021001 nanoscience & nanotechnology 01 natural sciences Surfaces Coatings and Films Electronic Optical and Magnetic Materials symbols.namesake Phase (matter) visual_art 0103 physical sciences Materials Chemistry Ceramics and Composites visual_art.visual_art_medium symbols Ceramic Composite material 0210 nano-technology Raman spectroscopy Powder diffraction |
| Zdroj: | Ceramics International. 45:9986-9993 |
| ISSN: | 0272-8842 |
| DOI: | 10.1016/j.ceramint.2019.02.042 |
| Popis: | A study of the interaction between an inorganic phase, KH2PO4 (KDP) and an organic phase C6H4O2 (BZQ) in composites KDP/BZQ is presented here. Studies by X-ray powder diffraction and Raman spectroscopy confirm the interaction by a variation in the volume of the unit cell and new bands identified corresponding to the formation of new hydrogen bonds between KDP and BZQ in the Raman spectra. Relaxation process and conductivity were studied using an impedance analyzer in a wide frequency range (102–106 Hz) between room temperature and 90 °C allowing seeing the dielectric character of the composites and the proton conductivity behavior. Also the effective piezoelectric coefficient was determined by piezo response microscopy; it was observed a decrement of the KDP coefficient on increasing the concentration of BZQ, probably due to the interaction between them. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect