Improved chemical stability of Ti-doped MgB2 in water

Y. Zhao, C. H. Cheng, T. MacHi, N. Koshizuka, Masato Murakami

Research output: Contribution to journalArticle

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Abstract

We investigated the degradation of critical current density (Jc) and irreversibility field (Hirr) of pure and Ti-doped MgB 2 bulks by exposing the samples to water for a total of 10, 48, 100, and 124 h. We found that both Jc and Hirr of the samples were degraded by exposure to water, in various degrees depending on the doping level. In the same exposure duration, the Ti-doped samples exhibited a less sensitivity to water, which was confirmed by the less degradation of J c and Hirr. Our results demonstrate that Ti doping is not only effective in improving the superconducting properties of MgB2 but also in enhancing its chemical stability against water.

Original languageEnglish
Pages (from-to)2311-2313
Number of pages3
JournalApplied Physics Letters
Volume80
Issue number13
DOIs
Publication statusPublished - 2002 Apr 1
Externally publishedYes

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water
degradation
critical current
current density
sensitivity

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Cite this

Improved chemical stability of Ti-doped MgB2 in water. / Zhao, Y.; Cheng, C. H.; MacHi, T.; Koshizuka, N.; Murakami, Masato.

In: Applied Physics Letters, Vol. 80, No. 13, 01.04.2002, p. 2311-2313.

Research output: Contribution to journalArticle

Zhao, Y, Cheng, CH, MacHi, T, Koshizuka, N & Murakami, M 2002, 'Improved chemical stability of Ti-doped MgB2 in water', Applied Physics Letters, vol. 80, no. 13, pp. 2311-2313. https://doi.org/10.1063/1.1465521
Zhao, Y. ; Cheng, C. H. ; MacHi, T. ; Koshizuka, N. ; Murakami, Masato. / Improved chemical stability of Ti-doped MgB2 in water. In: Applied Physics Letters. 2002 ; Vol. 80, No. 13. pp. 2311-2313.
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