Comparison of the powder-in-tube processing properties of two (Bi2−xPbx)Sr2Ca2Cu 3O10+δpowders

Enhanced superconducting performance of melt quenched Bi2Sr2CaCu2O8 (Bi-2212) superconductor

“…The melt quench technique offers a good means to improve inter-grain connectivity due to reduced porosity and possible crystallographic alignment of grains [16] [18] [19]. 3 Bismuth based cuprate superconductors are among promising candidates for wires and tapes applications due to higher values of their critical temperature, current density and critical magnetic field [13][14] [20][21] [22]. Three main phases of BSCCO The obtained samples were then examined for their structural properties by measuring their room temperature X-ray diffraction pattern using Rigaku Miniflex X-ray diffractometer with Cu-K radiation.…”

Enhancement of the critical current density of Ag-sheathed Bi-2223 tapes by optimized intermediate rolling

“…Moreover, if the performance of different precursor powders is to be compared, the intermediate rolling reduction should be one of the optimization parameters, since different precursor powders may have different reaction kinetics. Filamentary thickness is another factor which may also affect the optimum intermediate rolling reduction, as the Ag/BSCCO interface affects the formation of the Bi-2223 phase significantly [8,9]. Optimized sintering conditions in monofilamentary tapes, which have the lowest Ag/BSCCO interface ratio, may not be the same in multifilamentary tapes.…”

Design of High Field Solenoids made of High Temperature Superconductors

“…The powder in tube (PIT) process has been widely used to manufacture wire and tapes from brittle superconducting materials such as Nb 3 Sn [23] or MgB 2 [24], and recently it is being adopted to produce both cuprate [25] and iron based [26] superconductors. Figure 1.4 shows a diagram of this process.…”