Repozytorium publikacji - Politechnika Gdańska

The ac and dc conductivity in barium-vanadate glasses was investigated as a function of temperature and frequency with the use of impedance spectroscopy. The topography and microstructure of glasses were investigated by the means of X-ray diffraction (XRD) and scanning electron microscopy (SEM) methods. The XRD results show that all samples are amorphous but microscopy investigation reveals that glasses with greater amount of V2O5 contain nanostructures. The influence of V2O5 quantity on dielectric properties was checked. The activation energy of dc conduction process was evaluated. On the basis of Jonscher universal dielectric response the temperature dependence of conductivity parameters were determined and compared to theoretical models collected by Elliott.

Autorzy

• dr hab. inż. Natalia Anna Wójcik link otwiera się w nowej karcie ,
• Piotr Kosiorek link otwiera się w nowej karcie ,
• dr hab. inż. Jakub Karczewski link otwiera się w nowej karcie ,
• prof. dr hab. inż. Maria Gazda link otwiera się w nowej karcie ,
• dr hab. inż. Ryszard Jan Barczyński link otwiera się w nowej karcie