Structural and morphological characterization of YBa(2)Cu(3)O(7-x)films deposited by screen printing from YBa(2)Cu(3)O(6.962)superconductor in bulk
MATERIALS RESEARCH EXPRESS(2020)
摘要
YBa(2)Cu(3)O(7-x)films were deposited onto flexible copper substrates by screen printing technique. YBa(2)Cu(3)O(7-x)films were prepared from a YBa(2)Cu(3)O(7-x)superconductor powder with ethylene glycol. The mixtures were screen printed and then sintered in air at different temperatures: 373, 473, and 573 K. The structural characterization showed the presence of different phases; the proportion of phases in films depends on sintering temperature. Scanning electron microscope images showed that an annealing temperature increase leads to an increase in grain size due to a coalescence process, which promotes the growth of superconductor phases with higher oxygen content.
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关键词
YBa(2)Cu(3)O(7-x)superconductor,YBa(2)Cu(3)O(7-x)thin films,screen printing
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