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Synthesis of YBa2Cu4O8in air through complex precursor formation and fine-particle techniques

Authors
Journal
Materials Letters
0167-577X
Publisher
Elsevier
Publication Date
Volume
11
Identifiers
DOI: 10.1016/0167-577x(91)90081-g
Disciplines
  • Physics

Abstract

Abstract We report the successful synthesis in air of the superconductor YBa 2Cu 4O 8 (1-2-4) without the need of high oxygen pressure or an alkali-carbonate based catalyst. The technique involves formation, in solution, of a fine-particle-complex based precursor. The 1-2-4 phase then forms in air with a single firing of 30 min at 900°C and a T c near 80 K. We also report some results of attempts to prepare 1-2-4 using precursors from sol-gel and spray drying.

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