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Open Physics

formerly Central European Journal of Physics

Editor-in-Chief: Seidel, Sally

Managing Editor: Lesna-Szreter, Paulina


IMPACT FACTOR 2018: 1.005

CiteScore 2018: 1.01

SCImago Journal Rank (SJR) 2018: 0.237
Source Normalized Impact per Paper (SNIP) 2018: 0.541

ICV 2018: 147.55

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Online
ISSN
2391-5471
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Volume 11, Issue 2

Issues

Volume 13 (2015)

Characterization of CaTi0.9Fe0.1O3/La0.98Mg0.02NbO4 composite

Aleksandra Mielewczyk-Gryn
  • Faculty of Applied Physics and Mathematics, Gdansk University of Technology, Narutowicza 11/12, 80-233, Gdansk, Poland
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/ Tomasz Lendze
  • Faculty of Applied Physics and Mathematics, Gdansk University of Technology, Narutowicza 11/12, 80-233, Gdansk, Poland
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/ Katarzyna Gdula-Kasica
  • Faculty of Applied Physics and Mathematics, Gdansk University of Technology, Narutowicza 11/12, 80-233, Gdansk, Poland
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/ Piotr Jasinski
  • Faculty of Electronics, Telecommunication and Informatics, Gdansk University of Technology, Narutowicza 11/12, 80-233, Gdansk, Poland
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/ Andrzej Krupa / Boguslaw Kusz
  • Faculty of Applied Physics and Mathematics, Gdansk University of Technology, Narutowicza 11/12, 80-233, Gdansk, Poland
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/ Maria Gazda
  • Faculty of Applied Physics and Mathematics, Gdansk University of Technology, Narutowicza 11/12, 80-233, Gdansk, Poland
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Published Online: 2013-02-09 | DOI: https://doi.org/10.2478/s11534-012-0152-6

Abstract

A composite of CaTi0.9Fe0.1O3 and electrolyte material, i.e. magnesium doped La0.98Mg0.02NbO4 was prepared and studied. The phase content and the sample microstructure was examined by an X-ray diffraction method and scanning electron microscopy. EDS measurements were done both for composite samples and the diffusion couple. The electrical properties were studied by four terminal DC method. The high-temperature interaction between the two components of the composite has been observed. It has been suggested that lanthanum diffused into the perovskite phase and substituted for calcium whereas calcium and niobium formed the Ca2Nb2O7 pyrochlore phase. At 1500°C very large crystallites of the pyrochlore were observed. Regardless of strong interaction between the composite components, its total conductivity was weakly dependent on the sintering temperature.

Keywords: diffusion couple; x-ray diffraction; proton conductors; perovskites

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About the article

Published Online: 2013-02-09

Published in Print: 2013-02-01


Citation Information: Open Physics, Volume 11, Issue 2, Pages 213–218, ISSN (Online) 2391-5471, DOI: https://doi.org/10.2478/s11534-012-0152-6.

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