- Project's acronym:
- Project's funding:
- IUVENTUS PLUS
- 0513/IP2/2016/74 z dnia 2016-10-19
- Realisation period:
- 2016-10-19 - 2020-04-18
- Project manager:
- dr inż. Aleksandra Dorota Mielewczyk-Gryń
- Realised in:
- Department of Solid State Physics
- Request type:
- National Research Programmes
- Domestic project
- Verified by:
- Gdańsk University of Technology
Papers associated with that project
Synthesis, microstructure and electrical properties of nanocrystalline calcium doped lanthanum orthoniobatePublication
The single phase lanthanum orthoniobate with tetragonal structure has been synthesized by the means of mechanosynthesis method. The studies have shown the crystal structure of La0.98Ca0.02NbO4 depends on the synthesis stage. The samples were predominantly in the tetragonal phase with a trace amount of the monoclinic phase. The SEM studies of morphology and microstructure have shown nanocrystallinity of the materials. The Raman...
The results of electrical conductivity studies, structural measurements and thermogravimetric analysis of La1−xTbxNbO4+δ (x = 0.00, 0.05, 0.1, 0.15, 0.2, 0.3) are presented and discussed. The phase transition temperatures, measured by high-temperature x-ray diffraction, were 480 °C, 500 °C, and 530 °C for La0.9Tb0.1NbO4+δ, La0.8Tb0.2NbO4+δ, and La0.7Tb0.3NbO4+δ, respectively. The impedance spectroscopy results suggest mixed conductivity...
In this work, lanthanum orthoniobates doped with either antimony, calcium, or both have been synthesized and studied. The water uptake of the investigated materials has been analyzed by means of thermogravimetric studies. The results show the difference between the thermodynamics of hydration between the lanthanum orthoniobate system and other proton conducting ceramics. The relation between the water uptake and effective acceptor...
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