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Microstructure of (Nd, Eu, Gd)-123 matrix with (Nd, Eu, Gd)-211 inclusions

Published online by Cambridge University Press:  31 January 2011

M. Muralidhar ,
M. Jirsa ,
K. Iida ,
N. Sakai  and
M. Murakami
M. Muralidhar*
Affiliation:
Superconductivity Research Laboratory, International Superconductivity Technology Center (ISTEC), Division III, 1–16–25, Shibaura, Minato-Ku, Tokyo 105–0023 Japan
M. Jirsa
Affiliation:
Superconductivity Research Laboratory, International Superconductivity Technology Center (ISTEC), Division III, 1–16–25, Shibaura, Minato-Ku, Tokyo 105–0023 Japan
K. Iida
Affiliation:
Superconductivity Research Laboratory, International Superconductivity Technology Center (ISTEC), Division III, 1–16–25, Shibaura, Minato-Ku, Tokyo 105–0023 Japan
N. Sakai
Affiliation:
Superconductivity Research Laboratory, International Superconductivity Technology Center (ISTEC), Division III, 1–16–25, Shibaura, Minato-Ku, Tokyo 105–0023 Japan
M. Murakami
Affiliation:
Superconductivity Research Laboratory, International Superconductivity Technology Center (ISTEC), Division III, 1–16–25, Shibaura, Minato-Ku, Tokyo 105–0023 Japan
*
a)Address all correspondence to this author. e-mail: miryala1@istec.or.jp
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Abstract

Microstructure of (Nd, Eu, Gd)Ba2Cu3O7−δ (NEG-123) samples with (Nd, Eu, Gd)2BaCuO5 (NEG-211) particles were observed by transmission electron microscopy. High-resolution electron microscopy observation demonstrated that the density of microstructural defects was small around the NEG-211 secondary phase particles. Furthermore, the 123/211 interfaces were found to be very clean and sharp. Chemical compositional analysis of the submicron secondary phase particles revealed that these fine particles are not composed of NEG-211 but Eu2BaCuO5 (Eu-211) or Gd2BaCuO5 (Gd-211).

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Articles
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Journal of Materials Research , Volume 16 , Issue 2 , February 2001 , pp. 407 - 412
Copyright
Copyright © Materials Research Society 2001

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References

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