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

Byung-Moo Moon, V. N. Korenivski, K. V. Rao, Y. J. Kim

Research output: Contribution to journalArticle

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Abstract

The microstructural and magnetic properties of sinter-forged BiPbSrCaCuO superconductors have been studied. The as-sinter-forged sample consisted of significant microcracks all through the bulk and first forms into a Bi 2-2-1-2 phase (c = 3.08 nm). However, after heat treatment at 860°C in air for 10 days, the final sample transformed to microstructurally smooth grains of Bi 2-2-2-3 phase (c = 3.70 nm). ac magnetic susceptibility data taken at 0.1, 1 and 10 Oe evidence the onset of diamagnetic response of grains at Tc = 105 K with a rather narrow transition width, ΔTc = 3 K. TEM, SEM and XRD analyses reveal remarkable microstructural changes into a smooth laminar structure during the formation of Bi 2-2-2-3 phase.

Original languageEnglish
Pages (from-to)72-76
Number of pages5
JournalMaterials Letters
Volume14
Issue number1
Publication statusPublished - 1992 Jun 1
Externally publishedYes

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Superconducting materials
microcracks
Microcracks
Magnetic susceptibility
Magnetic properties
heat treatment
Heat treatment
magnetic properties
Transmission electron microscopy
magnetic permeability
transmission electron microscopy
Scanning electron microscopy
scanning electron microscopy
air
Air

ASJC Scopus subject areas

  • Materials Science(all)

Cite this

Microstructural and magnetic studies of sinter-forged (Bi, Pb)2Sr2Ca2Cu3Ox superconductor. / Moon, Byung-Moo; Korenivski, V. N.; Rao, K. V.; Kim, Y. J.

In: Materials Letters, Vol. 14, No. 1, 01.06.1992, p. 72-76.

Research output: Contribution to journalArticle

Moon, Byung-Moo ; Korenivski, V. N. ; Rao, K. V. ; Kim, Y. J. / Microstructural and magnetic studies of sinter-forged (Bi, Pb)2Sr2Ca2Cu3Ox superconductor. In: Materials Letters. 1992 ; Vol. 14, No. 1. pp. 72-76.
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