Solid state phase transformation of Nd1+xBa2-xCu3O6+∂ during annealing processing

Masateru Yoshizumi, Yuichi Nakamura, Teruo Izumi, Yuh Shiohara, Yuichi Ikuhara, Taketo Sakuma

研究成果: Article査読

抄録

In order to investigate solid state phase transformation in solid, Nd1+xBa2-xCu3O6+∂ powders with different compositions were annealed under different annealing conditions. The temperature-substitution ratio-oxygen content phase diagram of Nd1+xBa2-xCu3O6+∂ solid solution was constructed. The condition to occur Nd123ss phase separation was clarified by investigating the compositional fluctuation, XRD pattern, the time dependences of Tc properties and oxygen content. Solid state phase transformation of Nd123ss advances with two steps. Tetragonal orthorhombic phase transition due to oxygen introduction occurs at first, and then the orthorhombic phase with small x decomposes to the two phases by spinodal decomposition.

本文言語English
ページ(範囲)139-142
ページ数4
ジャーナルNippon Kinzoku Gakkaishi/Journal of the Japan Institute of Metals
65
3
DOI
出版ステータスPublished - 2001
外部発表はい

ASJC Scopus subject areas

  • 凝縮系物理学
  • 材料力学
  • 金属および合金
  • 材料化学

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