ISSN:
1662-9752
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
with yttrium, barium, copper acetates as starting materials, a low-fluorine-contentsolution was prepared. YBa2Cu3O7-x (YBCO) films on LaAlO3 (LAO) single crystal substrates werefabricated by a new TFA-MOD method. Solution-derived YBCO films exhibited epitaxial growth,which was confirmed by X-ray diffraction (XRD). The humidity of the furnace atmosphere duringannealing process influences the texture of YBCO film. Under high-humidity of furnaceatmosphere, a-oriented grains, which were confirmed by scanning electron microscopy (SEM),were generated on film surface. High-resolution transmission electron microscopy (HRTEM),however, indicated that although a-axis oriented grains formed on the film surface, c-axis orientedgrains occupied the area near the YBCO/LAO interface. High-performance YBCO films with Tcabove 90K, and Jc more than 106A/cm2 at 77 K and zero magnetic field were obtained
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/02/16/transtech_doi~10.4028%252Fwww.scientific.net%252FMSF.546-549.2003.pdf
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