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Multi-coated YBa2Cu3O7-x Films Fabricated by a Fluorine-Free Sol-Gel Process |
Journal of Magnetics, Volume 16, Number 2, 30 Jun 2011, Pages 186-191 |
E. A. Cho (Department of Advanced Materials Engineering, Chungbuk National University), G. E. Jang * (Department of Advanced Materials Engineering, Chungbuk National University), O. B. Hyun (Transmission and Distribution Lab., Korea Electric Power Research Institute) |
Abstract |
YBa2C3O7-x films were fabricated on a SrTiO3 (100) substrate using a trimethylaceate propionic acid (TMAP)-based MOD process by controlling the precursor solution viscosity, firing temperature, and by using various coatings. The viscosity of the precursor solution was controlled by the addition of Xylenes. The films were heat treated with different temperatures from 750 to 800 oC. c-axis oriented films were obtained. After adding 9 ml of Xylene into the precursor solution, the Tc of the YBCO film, which was coated 2 times and heat treated at 800 oC, was 86 K and the measured Jc was above 2.5 MA/cm2 at 77 K in a zero-field.
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Keywords: YBCO coated conductor; fluorine-free process; xylene; multi-coating |
DOI: 10.4283/JMAG.2011.16.2.186 |
Full Text: PDF |
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