Introduction of flux pinning center in sintered Bi-2223 superconductors by 290 MeV/n 40Ar irradiation

Takeyuki Kikuchi, Makoto Nakanishi, Masahiro Nagae, Yoshihiro Kusano, Tatsuo Fujii, Jun Takada, Nakahiro Yasuda, Takeshi Murakami

Research output: Contribution to journalArticle

Abstract

Bi-2223 bulk superconductors were irradiated with 290MeV/n 40Ar18+ ions. 40Ar18+ irradiation effects on flux pinning of Bi-2223, which were estimated as ΔM from magnetic hysteresis loops measured by SQUID and VSM, were discussed. Irradiated samples had enlarged magnetic hysteresis loops than unirradiated samples. Moreover, the increment of ΔM depended on depth from the irradiation surface. Microstructure of irradiated samples were observed by high-resolution transmission electron microscopy (HR-TEM). However, irradiation defects such as the columnar defects were not observed in these samples.

Original languageEnglish
Pages (from-to)994-998
Number of pages5
JournalFuntai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy
Volume46
Issue number9
Publication statusPublished - Sep 1999

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Flux pinning
Superconducting materials
Magnetic hysteresis
Irradiation
Hysteresis loops
Defects
SQUIDs
High resolution transmission electron microscopy
Ions
Microstructure

ASJC Scopus subject areas

  • Mechanical Engineering
  • Metals and Alloys

Cite this

Introduction of flux pinning center in sintered Bi-2223 superconductors by 290 MeV/n 40Ar irradiation. / Kikuchi, Takeyuki; Nakanishi, Makoto; Nagae, Masahiro; Kusano, Yoshihiro; Fujii, Tatsuo; Takada, Jun; Yasuda, Nakahiro; Murakami, Takeshi.

In: Funtai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy, Vol. 46, No. 9, 09.1999, p. 994-998.

Research output: Contribution to journalArticle

Kikuchi, Takeyuki ; Nakanishi, Makoto ; Nagae, Masahiro ; Kusano, Yoshihiro ; Fujii, Tatsuo ; Takada, Jun ; Yasuda, Nakahiro ; Murakami, Takeshi. / Introduction of flux pinning center in sintered Bi-2223 superconductors by 290 MeV/n 40Ar irradiation. In: Funtai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy. 1999 ; Vol. 46, No. 9. pp. 994-998.
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