Low Temperature Deposition of YBa2Cu3O(7-x) Films on Large Area and Non-planar Substrates
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Eic Laboratories, Inc.
111 Downey Street, Norwood, MA, 02062
Martin W. Rupich
AbstractSolution based deposition processes represent an extremely attractive method for the inexpensive fabrication of high Tc superconducting films on large area and non-planar surfaces. EIC Laboratories has developed a unique precursor consisting of an extremely soluble Cu-Ba-Y oxoalkalide complex that can be deposited on planar and non-planar surfaces by standard spin and dip coating techniques. The precursor films undergo a facile conversion to the superconducting YBa(2)Cu(3)O(7-x) phase at temperatures as low as 720 degrees Celsius. The process results in c-axis oriented YBa(2)Cu(3)O(7-x) films with Tc's of >90 Kelvin and Jc's of >2 x 10(5) A/cm2 at 77 Kelvin. The fabrication of large area and non-planar films requires optimization of the thermal processing conditions to insure uniform electrical properties over the entire film surface. The process represents a low cost technique for coating cavities, radomes and large area planar substrates with high quality superconducting films.
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