Abstract
The fabrication process of Y-system superconducting films on Hastelloy substrates by the Liquid Phase Epitaxy (LPE) method was developed. The reaction between Hastelloy and the oxide melt was prevented by an MgO buffer layer for MgO saturated oxide melt. Consequently, the suitable construction for tape processing by LPE was found as YBa2Cu3Oy /YBa2(Cu,Mg)3Oy /MgO/ Hastelloy. The ability of this system superconducting properties were confirmed using MgO single crystal substrates. Y123 /Y123(Mg) /MgO revealed a high Tc value of 9IK and a high Jc value of 1.2 X 105 A/cm2(77K,0T). Finally, the continuous YBa2 (Cu,Mg)3Oy layer was succeeded in growing on Hastelloy substrates.
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