Scientific article

TEM study of the (Bi,Pb)2Sr2Ca2Cu3Ox phase formation in (Bi,Pb)2Sr2Ca2Cu3Ox silver-sheathed tapes

Published inPhysica C: Superconductivity and Its Applications, vol. 298, no. 1-2, p. 41-48
Publication date1998

The phase formation of (Bi,Pb)2-Sr2-Ca2Cu3Ox (denoted as Bi/Pb(2223)) in Bi/Pb(2223) silver-sheathed tapes has been investigated using transmission electron microscopy (TEM). In partly reacted Bi2Sr2CaCu2Ox (Bi(2212)) grains, spatial transitions from Bi(2212) layers to Bi/Pb(2223) layers along the basal plane are observed, but they occur very rarely. These transitions cause considerable lattice distortions. Amorphous regions, which correspond to a liquid phase present during the heat treatment, have slightly higher Bi and Pb contents than the adjacent Bi(2212) grains. An analysis of stacking sequences demonstrates that the majority of the layers is surrounded by layers of the same type and that the conversion rate of the Bi(2212)-to-Bi/Pb(2223) transformation decreases rapidly. These observations support the idea that the Bi/Pb(2223) phase primarily forms via a nucleation-and-growth process, which is orientation-controlled by the unreacted Bi(2212) grains serving as a substrate for the growing Bi/Pb(2223) phase.

  • (Bi/Pb)2Sr2Ca2Cu3Ox
  • Transmission electron microscopy (TEM)
  • Phase formation
  • Superconducting tape
Citation (ISO format)
GRINDATTO, D.P. et al. TEM study of the (Bi,Pb)<sub>2</sub>Sr<sub>2</sub>Ca<sub>2</sub>Cu<sub>3</sub>O<sub>x</sub> phase formation in (Bi,Pb)<sub>2</sub>Sr<sub>2</sub>Ca<sub>2</sub>Cu<sub>3</sub>O<sub>x</sub> silver-sheathed tapes. In: Physica C: Superconductivity and Its Applications, 1998, vol. 298, n° 1-2, p. 41–48. doi: 10.1016/S0921-4534(98)00031-8
Main files (1)
Article (Published version)
ISSN of the journal0921-4534

Technical informations

Creation09/17/2018 3:15:00 PM
First validation09/17/2018 3:15:00 PM
Update time03/15/2023 8:39:26 AM
Status update03/15/2023 8:39:25 AM
Last indexation08/30/2023 6:55:44 PM
All rights reserved by Archive ouverte UNIGE and the University of GenevaunigeBlack