Growth mechanism of Bi2212 whisker from bulk precursor

Naotsugu Hoshi, Shiro Kambe, Osamu Ishii, Masashi Mukaida

Research output: Contribution to journalConference articlepeer-review

2 Citations (Scopus)


The Bi2212 whisker growth from the silver-added bulk precursor was compared with those from aluminum-added precursor. Especially, microstructural observation and analysis were performed near the surface of the bulk precursors around the root of the whisker using a scanning electron microscope with an electron probe microanalyzer. From the aluminum-added bulk precursor, Bi2212 + Ca-Cu-O + Al2O3, Bi2212 + Bi-Sr-Ca-Al-O + Al 2O3, and Bi2212 + Bi-Sr-Ca-Al-O were observed, suggesting that its growth mechanism is the same as that from aluminum-added glass plate. Bi2212 whiskers grew from not only an Al-added bulk precursor but an Ag-added bulk precursor. Near the Ag-added precursor surface, Bi2212 + CuO, Bi2212 + Ca-Cu-O, and Bi2212 + CuO + Ag regions were observed. Ag was extremely segregated just below the surface. A microcrucible in the Ag-added precursor may be Ag or CuO.

Original languageEnglish
Pages (from-to)62-65
Number of pages4
JournalPhysica C: Superconductivity and its applications
Issue numberPART 1
Publication statusPublished - Oct 2003
Externally publishedYes
EventProceedings of the 15th International Symposium on Superconduc - Yokohama, Japan
Duration: Nov 11 2002Nov 13 2002

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering


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