Superconducting yttrium-barium-copper-oxide ribbons fabricated from a metal alloy precursor
- 1 August 1988
- journal article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 53 (5) , 438-440
- https://doi.org/10.1063/1.100613
Abstract
We report a new process for making superconducting Y-Ba-Cu-oxide ribbon from a ductile metal alloy precursor ribbon. We begin by melt-spinnng an alloy having the composition YCu3 to obtain the microcrystalline precursor ribbon. The ribbon is coated with a molten mixture of Ba inorganic compounds at 550 °C, and reacted in air at 925 °C to form the superconducting YBa2Cu3O7−x phase. The superconducting onset occurs at 92 K and zero resistance is reached at 89 K. X-ray diffraction, electron microscopy, and magnetization measurements confirm that the ribbon is predominantly superconducting YBa2Cu3O7−x.Keywords
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