The influences of rolling parameters on the properties of Bi(2223)/Ag superconducting tapes by statistical analysis

Ag-sheathed (Bi,Pb)(2)Sr2Ca2Cu3Ox tapes were prepared by the powder-in-tube method. The influences of rolling parameters on superconducting characteristics of Bi(2223)/Ag tapes were analyzed qualitatively with a statistical method. The results demonstrate that roll diameter and reduction per pass significantly influence the properties of Bi(2223)/Ag superconducting tapes while roll speed does less and working friction the least. The results achieved in this work will play a critical role in the further optimization of rolling factors. (C) 2000 Elsevier Science B.V. All rights reserved.