Degradation of BPSCCO superconductors during processing

Pathak, L C and Mishra, Suman K and Bhattacharya, D and Chopra, K L (1999) Degradation of BPSCCO superconductors during processing. Journal of Materials Science, 34 (7). pp. 1619-1624.

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Abstract

Evaporation losses of Bi, Sr, Cu and Pb during processing of Bi-Pb-Sr-Ca-Cu-oxide (BPSCCO) superconductors were observed, which affected the superconducting properties. Incongruent loss of Bi, Sr, Cu and Pb was reduced by covering the pellets by excess BPSCCO powder during sintering and formation of the 2223 phase was observed to be enhanced. Formation of low temperature eutectic by silver addition was observed to accelerate the rate of evaporation. Lower temperature processing was required for fabrication of high quality Ag sheathed BPSCCO tapes.

Item Type: Article
Uncontrolled Keywords: Degradation of BPSCCO superconductors.
Subjects: Materials Science
Divisions: Material Science and Technology
Depositing User: Users 5 not found.
Date Deposited: 01 Jun 2010 06:36
Last Modified: 02 Sep 2026 09:35
URI: http://eprints.nmlindia.org/id/eprint/774

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