Superconductors prepared by the diffusion couples technique

Journal Article · Fri Jan 01 04:00:00 EST 1993 · Materials Research Bulletin; (United States)

DOI:https://doi.org/10.1016/0025-5408(93)90003-V· OSTI ID:6148885

Pankov, V V ^[1]; Fournier, T ^[2]; Pernet, M ^[3]; Shambalev, V N; Kalanda, N A ^[4]

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1. associe a l'Universite J. Fourier, Grenoble (France). Lab. de Cristallographie Inst. of Physics of Solids and Semiconductors, Minsk (Russian Federation)
2. associe a l'Universite J. Fourier, Grenoble (France). Lab. de Cristallographie Centre de Recherches sur les Tres basses Temperatures, Grenoble (France)
3. associe a l'Universite J. Fourier, Grenoble (France). Lab. de Cristallographie
4. Inst. of Physics of Solids and Semiconductors, Minsk (Russian Federation)

The sequence of the different phase layers in reaction zones of the Y[sub 2]BaCuO[sub 5]-BaCuO[sub 2], Y[sub 2]Cu[sub 2]O[sub 5]-BaCuO[sub 2], Y[sub 2]Ba[sub 4]O[sub 7]-CuO diffusion couples has been established at 930-950 C in air. The Y, Ba, Cu distributions over the zones have been determined by electron microprobe analysis (EMA), and diffusion path has been plotted into isothermal section of the phase diagram. The number and the width of intermediate layers give information about the synthesis of YBa[sub 2]Cu[sub 3]O[sub 7[minus][delta]] superconducting phases.

• OSTI ID: 6148885
• Journal Information: Materials Research Bulletin; (United States), Journal Name: Materials Research Bulletin; (United States) Vol. 28:1; ISSN MRBUAC; ISSN 0025-5408
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360201* -- Ceramics
Cermets
& Refractories-- Preparation & Fabrication
ALKALINE EARTH METAL COMPOUNDS
BARIUM COMPOUNDS
BARIUM OXIDES
CHALCOGENIDES
COPPER COMPOUNDS
COPPER OXIDES
DIFFUSION
FABRICATION
HIGH-TC SUPERCONDUCTORS
OXIDES
OXYGEN COMPOUNDS
PHASE STUDIES
POWDERS
SUPERCONDUCTORS
TRANSITION ELEMENT COMPOUNDS
YTTRIUM COMPOUNDS
YTTRIUM OXIDES