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Abstract
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.
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- Category:
- Articles
- Type:
- artykuł w czasopiśmie wyróżnionym w JCR
- Published in:
-
CERAMICS INTERNATIONAL
no. 41,
edition 6,
pages 7847 - 7852,
ISSN: 0272-8842 - Language:
- English
- Publication year:
- 2015
- Bibliographic description:
- Mielewczyk-Gryń A., Wachowski S., Zagórski K., Jasiński P., Gazda M.: Characterization of magnesium doped lanthanum orthoniobate synthesized by molten salt route// CERAMICS INTERNATIONAL. -Vol. 41, iss. 6 (2015), s.7847-7852
- DOI:
- Digital Object Identifier (open in new tab) 10.1016/j.ceramint.2015.02.121
- Verified by:
- Gdańsk University of Technology
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