Ea. Eremina et al., INFLUENCE OF BORON-CONTAINING DOPANTS ON THE FORMATION OF SUPERCONDUCTING PHASE IN THE SYSTEM BI(PB)-SR-CA-CU-O, Superconductor science and technology, 11(2), 1998, pp. 223-226
The effective dopants of (Bi,Pb)(2)Sr2Ca2Cu3Oz, which formed phases co
mpatible with the basic superconductor and did not cause the supercond
ucting properties of Bi-2223 to deteriorate, was studied. It was found
that the addition of 10 mol% of Ca2B2O5 led to a reduction of the ind
uction period and to an increase of the Bi-2223 phase content. It was
shown that the Ca2B2O5 surplus increased the amount of liquid in the s
ystem and thus accelerated the formation of Bi-2223 phase.