Superconducting yttrium-barium-copper-oxide ribbons fabricated from a metal alloy precursor

Pinkerton, F. E.; Meisner, G. P.; Fuerst, C. D.
August 1988
Applied Physics Letters;8/1/1988, Vol. 53 Issue 5, p438
Academic Journal
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.


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