Abstract
Ag2O-doped (1.2% wt.) nitrate freeze-dried powders (Bi : Pb : Sr : Ca : Cu = 1.7 : 0.3 : 2 : 2.5 : 3.5) were processed under an external electrical field and 17.5 MPa pressure at 800°C, for 4 min in vacuum. Final heat treatments (HT) were applied at 835–850°C for 70 h. in air (Bi, Pb)2Sr2CaCu2O x (2212-phase) was formed by electrical field processing in just 4 min. Electrical field application enhanced (Bi, Pb)2Sr2Ca2Cu3O y (2223-phase) formation during final HT. Ag2O additions to field sintered BSCCO ceramics increased the amount of 2223-phase and the zero resistance critical temperature (Te(R=0)) by ∼ 4 k.
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