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Oxygen out-diffusion in partially melted YBa2Cu3Oy−0.325Ag superconductor at reduced oxygen partial pressure

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Abstract

In this study, we examined the chemical diffusion coefficient of oxygen out-diffusion(\(\tilde D_{out} \)) in partially melted YBa2Cu3Oy (Y123)−Ag superconducting tape produced by the thermomechanical processing of the silverclad precursor (doped with 5 wt.% Ag) containing BaCuO2.5 at reduced oxygen partial pressure (P02). The\(\tilde D_{out} \) value of Y123−Ag (O7.0 to O6.2), obtained by using the thermogravimetric relaxation technique at 950°C and a P02 of 0.28 kPa, was 1.0476×10−7 cm2/s.

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Correspondence to Haigun Lee.

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Kim, JH., Lee, H. Oxygen out-diffusion in partially melted YBa2Cu3Oy−0.325Ag superconductor at reduced oxygen partial pressure. Met. Mater. Int. 14, 673–678 (2008). https://doi.org/10.3365/met.mat.2008.12.673

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