L. Dimesso et al., EFFECT OF ADDITIONAL ELEMENTS IN THE GLASS PRECURSOR ON THE GROWTH OFTHE BI2SR2CACU2OX WHISKERS, Journal of materials research, 9(10), 1994, pp. 2501-2509
The effect of the doping on the growth and superconducting properties
of whiskers in the Bi-Sr-Ca-Cu-X-O system (where X = Na, B, Ga, and Pb
, respectively), prepared by heating a glassy melt-quenched plate in f
lowing oxygen, is reported. The thermal behavior of the glassy samples
(studied by DTA, XRD, and SEM techniques) was found to be dependent o
n the dopant as well as on its concentration. The Bi2Sr2CaCu2Ox (2212
phase) whiskers were grown only from the Ga-doped system annealed at 8
55 degrees C. The dependence of the mechanism of the whiskers' growth
on the dopant is also discussed.