The preparation and characterization of Bi-2212 film on Ag substrate by dip-coating method

In this paper we report on the processing parameters and resulting critical current densities of Bi2Sr2Ca1Cu2Ox thick films on Ag substrate. Bi-2212 tapes and wires are prepared by dip-coating method. It is found that parameters during partial melting (maximum process temperature Tmax and solidification temperature Ts) have strong influences on the transition temperature Tc. The 0.5 mm diameter dip-coated wire can carry 4000 A/cm2 critical current in 77 K, self field. Post-annealing on different temperatures and atmospheres are studied as well to obtain varied Tc samples.