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Transmission Electron Microscope Studies on Minor Phases and Imperfections in YBa2Cu3Ox Compounds

Published online by Cambridge University Press:  28 February 2011

Shozo Ikeda ,
Kazuhiro Kimura ,
Akiyuki Matsushita ,
Haruyoshi Aoki ,
Takeshi Hatano ,
Takehiko Matsumoto  and
Keiichi Ogawa
Shozo Ikeda
Affiliation:
National Research Institute for Metals, 2–3–12 Nakameguro, Meguro-ku, Tokyo 153, JAPAN
Kazuhiro Kimura
Affiliation:
National Research Institute for Metals, 2–3–12 Nakameguro, Meguro-ku, Tokyo 153, JAPAN
Akiyuki Matsushita
Affiliation:
National Research Institute for Metals, 2–3–12 Nakameguro, Meguro-ku, Tokyo 153, JAPAN
Haruyoshi Aoki
Affiliation:
National Research Institute for Metals, 2–3–12 Nakameguro, Meguro-ku, Tokyo 153, JAPAN
Takeshi Hatano
Affiliation:
National Research Institute for Metals, 2–3–12 Nakameguro, Meguro-ku, Tokyo 153, JAPAN
Takehiko Matsumoto
Affiliation:
National Research Institute for Metals, 2–3–12 Nakameguro, Meguro-ku, Tokyo 153, JAPAN
Keiichi Ogawa
Affiliation:
National Research Institute for Metals, 2–3–12 Nakameguro, Meguro-ku, Tokyo 153, JAPAN
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Abstract

We studied grain boundaries in calcined and sintered YBa2Cu3Ox transmission electron microscopy (TEM) and found complex Ba-Cu oxides. The complex oxide was polycrystalline and composed of grains smaller than 100 nm in diameter and it often included minor phases rich in Y. Some stoichiomet-ric oxides such as BaCuO2, CuO and BaO were also observed along grain boundaries.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 99: Symposium AA – High-Temperature Superconductors , 1987 , 215
Copyright
Copyright © Materials Research Society 1988

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References

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