Crystallographic Study of Mixtures La1+xBa2-xCu3Oy (x=0,0.2,0.4,0.6) after annealing at 860 deg. C

Journal Article · Mon Apr 23 00:00:00 EDT 2007 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.2733398· OSTI ID:21057238

Stergiou, A; Yilmaz, S ^[1]; Stergiou, C ^[2]

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1. Department of Physics, Laboratory of Applied Physics, Aristotle University of Thessaloniki (Greece)
2. Department of Electrical and Computer Engineering, Aristotle University of Thessaloniki (Greece)

Four powder mixtures with chemical formula La1+xBa2-xCu3Oy was prepared. The mixtures were heated in free atmosphere, at temperature 850 deg. C for 60h and then at 860 deg. C for 40h. XRD measurements were obtained with CuKa radiation. The samples were characterized with the help of the PDF and refined, using the Rietveld's 'Powder Profile Analysis'. Four phases, same for all the samples, were found: (La,Ba)2CuO4, BaCuO2, LaBa2Cu3O7-d, and BaCO3. The percentages of the tour phases are changed, as the x quantity increases, and varied from 38, 25, 18, 19%, for x=0, to 69, 14, 7, 10%, for x=0.6, respectively.

• OSTI ID: 21057238
• Journal Information: AIP Conference Proceedings, Vol. 899, Issue 1; Conference: 6. international conference of the Balkan Physical Union, Istanbul (Turkey), 22-26 Aug 2006; Other Information: DOI: 10.1063/1.2733398; (c) 2007 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ANNEALING
BARIUM COMPOUNDS
CONCENTRATION RATIO
CRYSTAL GROWTH
CRYSTAL STRUCTURE
CUPRATES
HIGH-TC SUPERCONDUCTORS
LANTHANUM COMPOUNDS
MIXTURES
PHASE STABILITY
PHASE STUDIES
POWDERS
TEMPERATURE DEPENDENCE
X-RAY DIFFRACTION