Repozytorium publikacji - Politechnika Gdańska

Molten salt synthesis method has been used to prepare the single phase magnesium doped lanthanum orthoniobate. The phase composition has been checked by X-ray diffraction method and the microstructure studies have been performed by scanning electron microscopy. The high temperature properties of the material have been investigated by thermogravimetry and electrochemical impedance spectroscopy. A dependence between sample total conductivity and temperature has been found supporting the thesis that there is strong correlation between apparent activation energy of conductivity and structural phase transition at ~500 °C. It has been also shown that the conductivity of magnesium doped lanthanum orthoniobate synthesized by the molten salt route reaches values of ~1 mS/cm at 720°C in wet hydrogen.

Autorzy

• dr hab. inż. Aleksandra Dorota Mielewczyk-Gryń link otwiera się w nowej karcie ,
• dr inż. Sebastian Lech Wachowski link otwiera się w nowej karcie ,
• mgr inż. Krzysztof Zagórski link otwiera się w nowej karcie ,
• prof. dr hab. inż. Piotr Jasiński link otwiera się w nowej karcie ,
• prof. dr hab. inż. Maria Gazda link otwiera się w nowej karcie