Process for preparing YBa.sub.2 Cu.sub.3 O.sub.7-x superconducto

Superconductor technology: apparatus – material – process – Processes of producing or treating high temperature... – Shaping or consolidating


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505430, 505740, 505741, 505813, 505821, 505126, 505780, 505450, 505451, 505500, 505742, 505785, 505725, 252521, C04B 35626, C04B 3545, C04B 35505, C04B 35653




The present invention provides a process for the preparation of YBa.sub.2 Cu.sub.3 O.sub.7-x superconductor which comprises surrounding a sintered material in which the molar ratio of Y:Ba:Cu is 2:1:1 with liquid-forming powder and subjecting the powder compact to isothermal heat-treatment at a temperature below the peritectic temperature of YBa.sub.2 Cu.sub.3 O.sub.7-x. The YBa.sub.2 Cu.sub.3 O.sub.7-x superconductors prepared according to the present invention have aligned grain structure in one direction and thus exhibit a high critical current density.

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