This work introduces results obtained during the preparation of a Bi-based material with superconducting properties by oxalate
The influence of Fe presence on the precursors thermal stability and on the superconducting phases formation mechanism are
presented. The thermal decomposition and the stability in air of FeC2O42H2O and also of the components mixture were studied by DTA/TG. It was evidenced that iron oxalate decomposes at the lowest temperature
compared to the decomposition temperatures of the individual oxalates.
XRD, IR and TEM/ED studies were approached to investigate the individual oxalates and the mixture coprecipitates for the high-Tc superconducting material synthesis.