Comparative study of some methods of synthesis of the high-Tc superconductor YBa2Cu3O7−x
作者： P. Peshev , G. Gyurov , I. Khristova , K. Petrov , D. Kovacheva
DOI: 10.1016/0025-5408(88)90187-0
关键词: Materials science 、 Reaction system 、 Solid-state 、 Analytical chemistry 、 Nitrate 、 Dispersion (chemistry) 、 Thermal treatment 、 Superconductivity 、 Inorganic chemistry 、 Oxide 、 High-temperature superconductivity
摘要: Abstract Three alternative routes of solid state synthesis the high-Tc superconducting oxide YBa2Cu3O7−x have been studied: (i) high-temperature interaction between Y2O3, BaCO3 and CuO, (ii) thermal treatment coprecipitated oxalates Y, Ba Cu (iii) a mixture nitrates. It is shown that use nitrate precursors ensures highest rate due to lower temperature appearance free BaO in reaction system higher dispersion particles.
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