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Effect of heat treatments and additives on the superconducting behaviour of the Bi(2223) phase

✍ Scribed by Ravi Chandra Gundakaram; S.V. Suryanarayana

Publisher
Elsevier Science
Year
1993
Tongue
English
Weight
518 KB
Volume
1
Category
Article
ISSN
0964-1807

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✦ Synopsis

Bi( 2223) is reported to be a high-Tc phase with a Tc of 1lOK. Pb addition has been reported to stabilize the 2223 phase. we have made a systematic investigation on the non-stoichiometric starting composition of 2223 Bil~7Pb0~31nxSr2Cal~gCu30y and and Sn). The samples have been treatments and characterized by with nominal compositions Bil.7Pb0.3AxSr2Ca2CU30y (A=Ag subjected to different heat DC electrical resistance, AC magnetic susceptibility and X-ray diffraction measurements. Detailed analyses of the measurements performed are presented.

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The effect of core density on the formation of the 2223 phase in (Pb/Bi)2Sr2Ca2Cu3Ox superconducting tapes
✍ S.J. Fisher; M.K. Al-Mosawi; C. Beduz; Y. Yang πŸ“‚ Article πŸ“… 1997 πŸ› Elsevier Science 🌐 English βš– 404 KB

The effect of core density on the processing of superconducting tapes has been investigated. Tapes were prepared with different 'as-rolled' densities, but all other mechanical and thermal parameters remained the same. The precursor powder used had a nominal stoichiometry of Bi,.,,Pb,.,,Sr,.,,Ca~.~~C