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Crystal chemical and quantum chemical studies of Ba(Sr)-Nb oxide compoundsThe information available on the BaO(SrO)-NbO-NbO2 system with the niobium atom in the lower oxidation degree is very limited. Very few compounds have been found previously in this system. They are BaNbO3, SrxNbO3(0,7=x=1), Ba2Nb2O9, SrNb8O14; and some suggestions on the BaNb8O14 existence have been made also. At the same time Nb-based oxide compounds could be quite interesting in the search of new noncopper high T(sub c) superconductors Researchers studied Ba(Sr) NbxO2x-2 and Ba2(Sr2)-NbxO2x-1 compositions in the phase diagram of BaO(SrO)-NbO-NbO2 system. The synthesis of the materials was carried out in vacuum at the temperatures of 1000 to 1500 C. Barium carbonate and niobium pentoxide were used as initial components. X-ray analysis was carried out.
Document ID
19900018542
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Zubkov, V. G. (Academy of Sciences (USSR) Svierdlovsk, Ussr)
Turzhevsky, S. A. (Academy of Sciences (USSR) Svierdlovsk, Ussr)
Pereliaev, V. A. (Academy of Sciences (USSR) Svierdlovsk, Ussr)
Liechtenstein, A. I. (Academy of Sciences (USSR) Svierdlovsk, Ussr)
Gubanov, V. A. (Academy of Sciences (USSR) Svierdlovsk, Ussr)
Date Acquired
September 6, 2013
Publication Date
April 1, 1990
Publication Information
Publication: NASA, Goddard Space Flight Center, AMSAHTS 1990: Advances in Materials Science and Applications of High Temperature Superconductors
Subject Category
Solid-State Physics
Accession Number
90N27858
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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