Subsolidus Phase Equilibrium in the System Y2O3-BaO-CuO at 900°C in Air

Yasunori Ikeda, Mikio Takano, Yoshichika Bando, Hitoshi Kitaguchi, Jun Takada, Yoshinari Miura, Akiyoshi Osaka, Katsuaki Takahashi

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)


The subsolidus phase equilibrium in the Y2O3-BaO-CuO system at 900°C in air was determined by solid-state reaction techniques and the powder x-ray diffraction method. The system was found to contain three quaternary compounds, i. e. YBa^CuaOx, YsBaCuOe, and a perovskite like solid solution having a composition of YsxBaa-xCuO^ whose x ranges from 0.07 to 0.25. The structural symmetry of the last material changes from tetragonal orthorhombic tetragonal as x increases. Furthermore, a new ternary compound Ba2CuOx has been isolated whose structure is tetragonal K2NiF4 type with lattice parameters a=3.988A and c=12.988A.

Original languageEnglish
Pages (from-to)580-582
Number of pages3
JournalJournal of the Japan Society of Powder and Powder Metallurgy
Issue number10
Publication statusPublished - 1987
Externally publishedYes

ASJC Scopus subject areas

  • Mechanical Engineering
  • Industrial and Manufacturing Engineering
  • Metals and Alloys
  • Materials Chemistry


Dive into the research topics of 'Subsolidus Phase Equilibrium in the System Y2O3-BaO-CuO at 900°C in Air'. Together they form a unique fingerprint.

Cite this