On the preparation of Y1Ba2Cu4O8

It was demonstrated that superconducting 124 material can be successfully prepared by using oxide-nitrate- mixtures or nitrate-mixtures with short reaction times at normal oxygen pressure conditions. Small quantities of CuO, BaCuO 2 and Y 2BaCuO 5 could be detected as phase impurities by X-ray diffr...

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Bibliographic Details
Published in:Solid state communications 1991-08, Vol.79 (6), p.483-486
Main Authors: Horn, J., Börner, H., Semmelhack, H.C., Lippold, B., Herrmann, J., Wurlitzer, M., Krötzsch, M., Boehnke, U., Schlenkrich, F., Frenzel, Ch
Format: Article
Language:English
Subjects:
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Exact sciences and technology
Other topics in superconductivity
Physics
Superconductivity
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Summary:It was demonstrated that superconducting 124 material can be successfully prepared by using oxide-nitrate- mixtures or nitrate-mixtures with short reaction times at normal oxygen pressure conditions. Small quantities of CuO, BaCuO 2 and Y 2BaCuO 5 could be detected as phase impurities by X-ray diffraction. The best quality samples were prepared using freeze-dryed nitrate solution with Na 2CO 3 as an accelerator. The amount of impurity phases in these samples was near the detection limit of X-ray diffractometry.
ISSN:0038-1098
1879-2766
DOI:10.1016/0038-1098(91)90035-T