Ba<sub>2</sub>YCu<sub>3</sub>O<sub>x</sub> Crystal Formed by Peritectic Reaction

Jun Takada, Hitoshi Kitaguchi, Akiyoshi Osaka, Yoshinari Miura, Katsuaki Takahashi, Mikio Takano, Yasunori Ikeda, Yoshichika Bandō, Naoichi Yamamoto, Yoshio Oka,

Japanese Journal of Applied Physics · 1987 · 33 citations · 8 references

Concepts

Abstract

Melting and crystallization behavior of a high- T c compound Ba 2 YCu 3 O x was investigated by microstructural observation, and compositional, thermal and X-ray analyses. Because of an incongruent melting, Ba 2 YCu 3 O x decomposes into a solid phase, Ba 2 YCuO 5 , and a liquid at 1266 K in air. Ba 2 YCu 3 O x crystals are formed around the primary crystals, BaY 2 CuO 5 , by a peritectic reaction on cooling from 1473 K in air.

References

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