In:
Journal of Materials Research, Springer Science and Business Media LLC, Vol. 13, No. 2 ( 1998-02), p. 279-283
Abstract:
Microstructures of 27-filament (Bi, Pb) 2 Sr 2 Ca 2 Cu 3 O 10+ x (BPSCCO 2223) tape at various stages of repetitive rolling and sintering have been investigated using TEM and SEM. It was found that the dislocation density increases with increasing sintering time with the maximum dislocation density of 10 12 /cm 2 achieved for tapes sintered for 220 h. The interface between Ag-sheath and oxide core was observed to be wavelike. Small irregular 2223 colonies and cracks in the oxide cores were often observed near the Ag-sheath/oxide core interface. Repetitively rolled and sintered specimen with a total sintering time of 220 h was observed to have optimum phase purity of 2223 phase. Prolonged sintering results in recrystallization of the 2223 grains, degrading the texture of the oxide core.
Type of Medium:
Online Resource
ISSN:
0884-2914
,
2044-5326
DOI:
10.1557/JMR.1998.0038
Language:
English
Publisher:
Springer Science and Business Media LLC
Publication Date:
1998
detail.hit.zdb_id:
54876-5
detail.hit.zdb_id:
2015297-8
