As a method of the fabrication processes of YBa2Cu 3O7-x (YBCO), the metalorganic deposition (MOD) process using metal trifluoroacetete (TFA) is considered to be a strong candidate due to its low cost fabrication process for coated conductors with high J c. In our previous work, a triple coated film with 1 μm in thickness was fabricated on a CeO2/IBAD-YSZ layer buffered Hastelloy substrate by optimizing the condition of heat treatments such as P H2O in the multi-coating method [Physica C 378-381 (2002) 1013]. The Jc value of 1.6 MA/cm2 (77 K in self-field) in this film patterned 100 μm width and the I*c value of 153 A/cm-width at 77 K in self-field were achieved. In order to obtain a thicker film with high overall I*c for 1 cm width, the influence of the heat treatment conditions of PH2O, PO2, and the temperature in the MOD process was investigated. Subsequently, a 5 times coated film was obtained on a CeO2/IBAD-Zr2Gd2O7 layer buffered Hastelloy substrate by optimizing the conditions of heating and dip coating. As a result, the overall transport Ic value was improved to 210 A and Jc value of 1.53 MA/cm2 was obtained (77 K in self-field).
|ジャーナル||Physica C: Superconductivity and its applications|
|出版ステータス||出版済み - 10月 2003|
|イベント||Proceedings of the 15th International Symposium on Superconduc - Yokohama, 日本|
継続期間: 11月 11 2002 → 11月 13 2002
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