Microstructural and magnetic studies of sinter-forged (Bi, Pb)2Sr2Ca2Cu3Ox superconductor

The material had significant microcracks through the bulk, and consisted of a Bi 2-2-1-2 phase. After heat treatment in air at 860 C for 10 days, the sample transformed to microstructurally smooth grains of Bi 2-2-2-3 phase. ac magnetic susceptibility data indicated that the diamagnetic response of...

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Veröffentlicht in:	Materials letters 1992-06, Vol.14 (1), p.72-76
Hauptverfasser:	MOON, B. M, KORENIVSKI, V. N, RAO, K. V, KIM, Y. J
Format:	Artikel
Sprache:	eng
Schlagworte:	Condensed matter: electronic structure, electrical, magnetic, and optical properties Exact sciences and technology Physics Properties of type I and type II superconductors Superconductivity
Online-Zugang:	Volltext
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Zusammenfassung:	The material had significant microcracks through the bulk, and consisted of a Bi 2-2-1-2 phase. After heat treatment in air at 860 C for 10 days, the sample transformed to microstructurally smooth grains of Bi 2-2-2-3 phase. ac magnetic susceptibility data indicated that the diamagnetic response of grains occurred at Tc = 105 K. TEM, SEM and XRD analysis revealed the microstructural change to a smooth laminar structure during the formation of the Bi 2-2-2-3 phase. 9 refs.
ISSN:	0167-577X 1873-4979
DOI:	10.1016/0167-577X(92)90108-V