Influences of peparation conditions on melting and reformation behaviors of (Bi,Pb)-2223 core in the Ag-sheathed tape

J. Y. Li, H. L. Zheng, J. G. Li, C. S. Li, Y. F. Lu, L. Zhou

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

2 Scopus citations

Abstract

Three kinds of Ag-sheathed (Bi,Pb)2Sr2Ca 2Cu3O10 ((Bi,Pb)-2223) monofilamentary tapes were fabricated by powder-in-tube (PIT) process under different conditions. The phase evolutions during melting and reformation of (Bi,Pb)-2223 core in them have been investigated by ex-situ X-ray diffraction (XRD) analysis. The short tapes were melted at 855°C, 858°C in 7.5% O2 balanced with argon, and then slowly cooled to 801°C and 804°C at 1.5°C/h, respectively. The results show that the (Bi,Pb)-2223 phase can reform directly from the melt in all three tapes if the appropriate melting temperatures are used. However, the ceramic cores underneath the silver sheath exhibit different melting and recrystalization behaviors, as the differences of phase compositions in the original tapes before melted.

Original languageEnglish
Title of host publicationProgress in Light Metals, Aerospace Materials and Superconductors
PublisherTrans Tech Publications Ltd
Pages1967-1970
Number of pages4
EditionPART 4
ISBN (Print)0878494324, 9780878494323
DOIs
StatePublished - 2007
Event2006 Beijing International Materials Week, 2006 BIMW - International Conference on Superconducting Materials, ICSM 2006 - Beijing, China
Duration: 25 Jun 200630 Jun 2006

Publication series

NameMaterials Science Forum
NumberPART 4
Volume546-549
ISSN (Print)0255-5476
ISSN (Electronic)1662-9752

Conference

Conference2006 Beijing International Materials Week, 2006 BIMW - International Conference on Superconducting Materials, ICSM 2006
Country/TerritoryChina
CityBeijing
Period25/06/0630/06/06

Keywords

  • (bi,Pb)-2223/Ag tape
  • Melting and reformation
  • Preparation process

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