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 0.5mm diameter dip-coated wire can carry 4000A/cm2 critical current in 77K, self field. Post-annealing on different temperatures and atmospheres are studied as well to obtain varied Tc samples.