Dillingham, J.
, Wong-Ng, W.
and Levin, I.
(2001),
Phase Equilibria of the SrO-Yb<sub>2</sub>O<sub>3</sub>-CuO<sub>x</sub> System in Air, International Journal of Inorganic Materials
(Accessed October 31, 2024)
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Phase Equilibria of the SrO-Yb2O3-CuOx System in Air
Published
Author(s)
J Dillingham, ,
Abstract
The phase diagram of the SrO-Yb2O3-CuOx system was investigated in air. The solid solution (Sr14-xYbx)Cu24Oz (O13Yb)Cu24Oz indicated that this phase is incommensurate, with the modulation wave vector q=(1/2-z)c*, znearly equal to}0.066. The Sr-analogs of the Ba2YbCu3O6+x high Tc superconductor and the associated BaYb2CuO5 'green phase' were not observed in this system. The ionic size of lanthanides 'R' in the SrO-R2O3-CuOx systems affects the number of compounds formed and their crystal chemistry. The phase diagrams exhibit a smaller number of solid solution phases with decreasing size of R-cations, reflecting the lanthanide contraction.Citation
International Journal of Inorganic Materials
Volume
3
Issue
No. 6
Pub Type
Journals
Keywords
crystal chemistry, phase equilibria, SrO-Yb<sub>2</sub>O<sub>3</sub>-CuO<sub>x</sub>, TEM study of (Sr, Yb)<sub>14</sub>Cu<sub>24</sub>O<sub>41</sub>, x-ray diffraction
Citation
Issues
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Created August 31, 2001, Updated October 12, 2021