Improved corrosion resistance of cation substituted YBa2Cu3O7-δ

Ji Ping Zhou, Steven M. Savoy, Rung Kuang Lo, Jianai Zhao, Mark Arendt, Y. T. Zhu, A. Manthiram, John McDevitt

Research output: Contribution to journalArticle

Abstract

A cosubstitution of Ca2+ for Y3+and La3+ for Ba2+ in YBa2Cu3O7-δ is found to improve the corrosion resistance of this high- Tc superconductor. The reactivity characteristics of bulk and thin film samples of Y1-zCazBa2-yLayCu3O 7-δ indicate that the corrosion resistance in water environments increases with increasing degree of cation substitution up to z=y=0.4. The composition of Y0.6Ca0.4Ba1.6La0.4Cu 3O6.96 with a Tc of 80 K is found to be at least 100 times more stable than YBa2Cu3O6.94. Possible contributing factors that could be responsible for the marked improvement in the corrosion resistance of this high-Tc phase are discussed.

Original languageEnglish (US)
Pages (from-to)2900
Number of pages1
JournalApplied Physics Letters
StatePublished - 1995

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corrosion resistance
cations
reactivity
substitutes
thin films
water

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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Zhou, J. P., Savoy, S. M., Lo, R. K., Zhao, J., Arendt, M., Zhu, Y. T., ... McDevitt, J. (1995). Improved corrosion resistance of cation substituted YBa2Cu3O7-δ. Applied Physics Letters, 2900.

Improved corrosion resistance of cation substituted YBa2Cu3O7-δ. / Zhou, Ji Ping; Savoy, Steven M.; Lo, Rung Kuang; Zhao, Jianai; Arendt, Mark; Zhu, Y. T.; Manthiram, A.; McDevitt, John.

In: Applied Physics Letters, 1995, p. 2900.

Research output: Contribution to journalArticle

Zhou, JP, Savoy, SM, Lo, RK, Zhao, J, Arendt, M, Zhu, YT, Manthiram, A & McDevitt, J 1995, 'Improved corrosion resistance of cation substituted YBa2Cu3O7-δ', Applied Physics Letters, pp. 2900.
Zhou JP, Savoy SM, Lo RK, Zhao J, Arendt M, Zhu YT et al. Improved corrosion resistance of cation substituted YBa2Cu3O7-δ. Applied Physics Letters. 1995;2900.
Zhou, Ji Ping ; Savoy, Steven M. ; Lo, Rung Kuang ; Zhao, Jianai ; Arendt, Mark ; Zhu, Y. T. ; Manthiram, A. ; McDevitt, John. / Improved corrosion resistance of cation substituted YBa2Cu3O7-δ. In: Applied Physics Letters. 1995 ; pp. 2900.
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AU - Zhou, Ji Ping

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AU - Lo, Rung Kuang

AU - Zhao, Jianai

AU - Arendt, Mark

AU - Zhu, Y. T.

AU - Manthiram, A.

AU - McDevitt, John

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AB - A cosubstitution of Ca2+ for Y3+and La3+ for Ba2+ in YBa2Cu3O7-δ is found to improve the corrosion resistance of this high- Tc superconductor. The reactivity characteristics of bulk and thin film samples of Y1-zCazBa2-yLayCu3O 7-δ indicate that the corrosion resistance in water environments increases with increasing degree of cation substitution up to z=y=0.4. The composition of Y0.6Ca0.4Ba1.6La0.4Cu 3O6.96 with a Tc of 80 K is found to be at least 100 times more stable than YBa2Cu3O6.94. Possible contributing factors that could be responsible for the marked improvement in the corrosion resistance of this high-Tc phase are discussed.

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