Abstract
We investigated the influence of pulsed magnetic fields of up to 35 T on thick film samples of YBa2Cu3Ox (x<6.8) and YBa2Cu3Ox (5% Ag-doped), produced from powders on which electromagnetic separation had been performed. It was discovered, that subjecting the thick film samples of YBa2Cu3Ox to 10 pulses of a cyclic pulsed magnetic field of 32 T had the effect of significantly increasing Tc. The films had an oxygen deficit of 6.6–6.8%. Initially, Tc was 74 K. After the treatments by the strong pulses of magnetic fields, Tc had increased to 80 K. On the other hand, in YBa2Cu3Ox (5% Ag), the processing by strong pulsed magnetic fields will lead to dynamic mechanic stresses, which will increase the amount of tetragonal phases and lead to a lower temperature of the superconductivity transition.
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