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Effect of Thermal Processing on the Microstructures and Superconducting Properties of YBa2Cu3Oy

  • K. Gotoh (a1), H. Enomoto (a1), K. Iida (a1), Y. Takano (a1), N. Mori (a1) and H. Ozaki (a1)...

Abstract

The effect of thermal processing in the sample preparation of YBa2Cu3Oy has been investigated systematically on microstructures and electrical properties. The grain size was found to grow preferably during the cooling process rather than during the sintering process. The high Tc superconducting phase appears around 500 C in this thermal processing. The annealing experiment shows that the grains still grow at low temperature such as 300 °C.

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