Growth mechanism of Bi2212 whisker from bulk precursor

Naotsugu Hoshi, Shiro Kambe, Osamu Ishii, Masashi Mukaida

Research output: Contribution to journalConference article

2 Citations (Scopus)

Abstract

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
Volume392-396
Issue numberPART 1
DOIs
Publication statusPublished - Oct 1 2003
EventProceedings of the 15th International Symposium on Superconduc - Yokohama, Japan
Duration: Nov 11 2002Nov 13 2002

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Aluminum
aluminum
electron probes
Silver
Electron microscopes
electron microscopes
silver
Scanning
Glass
scanning
Electrons
glass

All Science Journal Classification (ASJC) codes

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

Cite this

Growth mechanism of Bi2212 whisker from bulk precursor. / Hoshi, Naotsugu; Kambe, Shiro; Ishii, Osamu; Mukaida, Masashi.

In: Physica C: Superconductivity and its applications, Vol. 392-396, No. PART 1, 01.10.2003, p. 62-65.

Research output: Contribution to journalConference article

Hoshi, Naotsugu ; Kambe, Shiro ; Ishii, Osamu ; Mukaida, Masashi. / Growth mechanism of Bi2212 whisker from bulk precursor. In: Physica C: Superconductivity and its applications. 2003 ; Vol. 392-396, No. PART 1. pp. 62-65.
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AB - 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.

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