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Synthesis of Superconducting Perovskite by Coprecipitation of Hydroxides
Published online by Cambridge University Press: 28 February 2011
Abstract
The synthesis of the superconducting perovskite YBa2Cu3O7 using hydroxides as starting precursors has been investigated. Hydroxides are homogeneously coprecipitated from mixed alcohol-water solutions without loss of barium. Upon heat-treatment the perovskite phase rapidly forms around 750°C. However, it remains tetragonal even after long time annealing in oxygen ambient. This is related to an unusual microtwinning in the (ac) plane.
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- Copyright © Materials Research Society 1990
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