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

Ikeda Shozo,Kimura Kazuhiro,Matsushita Akiyuki,Aoki Haruyoshi,Hatano Takeshi,Matsumoto Takehiko,Ogawa Keiichi

MRS Online Proceedings Library（2011）

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摘要

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.

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