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YBCO high temperature coated conductors are the most promising candidate for large scale superconducting transmission cables and fault current limiters. A modified TFA-MOD method was applied to prepare YBCO layer on Rolling Assisted Biaxially Textured Substrate (RABiTS) with textured Y 2 O 3 /YSZ/CeO 2 buffer layers, resulting in reduced time and cost of fabrication. By using Cu naphthenate instead of Cu(TFA) 2 , the pyrolysis time of the YBCO precursors was reduced significantly. YBCO films with thickness of 2 μm were fabricated with multiple-coating and annealed at high temperature for 2 h. X-ray diffraction analysis revealed that the films were c-axis oriented. The preliminary results of YBCO films yielded 0.2 MA/cm 2 at 77 K and self field. It is believed current carrying ability of YBCO films could be further improved by reducing the reaction rate at the interface between the buffer layer and superconducting layer.
YBCO high temperature coated conductors are the most promising candidates for large scale superconducting transmission cables and fault current limiters. A modified TFA-MOD method was applied to prepare YBCO layer on Rolling Assisted Biaxially Textured Substrate (RABiTS) with textured Y 2 O 3 / YSZ / CeO2 buffer layers, resulting in reduced time and cost of fabrication. By using Cu naphthenate instead of Cu (TFA) 2, the pyrolysis time of the YBCO precursors was reduced significantly. YBCO films with thickness of 2 μm were fabricated with multiple- Coating and annealed at high temperature for 2 h. X-ray diffraction analysis revealed that the films were c-axis oriented. The preliminary results of YBCO films yielded 0.2 MA / cm 2 at 77 K and self field. It is believed current carrying ability of YBCO films could be further improved by reducing the reaction rate at the interface between the buffer layer and superconducting layer.