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Proton Conducting Ceramic Powder Synthesis by a Low Temperature Method

Abstrakt

Molten salt synthesis (MSS) is a simple method for the preparation of ceramic powders with specific morphology. The main role of the molten salts is to increase the reaction rate and lower the reaction temperature. It occurs because of much higher mobility of reactants in the liquid medium than in the solid state. In this work the molten salt synthesis was applied to produce ceramic powders of La0995Ca0005NbO4 and BaCe09−xZrxY01O3. Single-phase lanthanum niobate formed in all studied conditions of the synthesis, whereas in the case of barium cerate-zirconate MSS led to forming two crystalline phases: barium cerate and barium zirconate. The heating temperature and time as well as the salt content most strongly influenced the shape and size of particles. The influence of other parameters on the powder morphology was weaker. Despite differences in size and morphology, all groups of the La0995Ca0005NbO4 powder obtained with the MSS method pressed into pellets and sintered gave a dense ceramic material. On the other hand in the case of barium cerate-zirconate regardless of synthesis and sintering conditions the ceramics were porous.

Cytowania

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Informacje szczegółowe

Kategoria:
Publikacja w czasopiśmie
Typ:
artykuł w czasopiśmie wyróżnionym w JCR
Opublikowano w:
JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY nr 15, wydanie 5, strony 3626 - 3635,
ISSN: 1533-4880
Język:
angielski
Rok wydania:
2015
Opis bibliograficzny:
Gazda M., Mielewczyk-Gryń A., Gdula-Kasica K., Wachowski S.: Proton Conducting Ceramic Powder Synthesis by a Low Temperature Method// JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY. -Vol. 15, iss. 5 (2015), s.3626-3635
DOI:
Cyfrowy identyfikator dokumentu elektronicznego (otwiera się w nowej karcie) 10.1166/jnn.2015.9858
Weryfikacja:
Politechnika Gdańska

wyświetlono 21 razy

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