Phases and their relations in the BaO(BaCO3)-CaO-CuO system

Yoshihiro Kusano, Takeyuki Kikuchi, Jun Takada, Yasunori Ikeda, Mikio Takano, Yoshichika Bando

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)


Phases and their relations in the BaO(BaCO3)-CaO-CuO system at 900°C in air have been studied by XRD. The formation of two types of copper oxycarbonates were newly formed: one is a phase with a composition of Ba:Ca:Cu=0.600:0.080:0.320 and the other is a solid solution formed in a region of the compositional triangle of (Ba:Ca:Cu)=(0.666:0:0.333)-(0.650:0.017:0.333)-(0.650:0.070:0.280). The crystal structures of these phases have been determined by XRD, TEM and ED. These copper oxide carbonates commonly have tetragonal structures with a≈√2 ap and c≈2ap. Unfortunately, no diamagnetic response was observed for the new two copper oxycarbonates.

Original languageEnglish
Pages (from-to)157-161
Number of pages5
JournalFuntai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy
Issue number2
Publication statusPublished - Feb 1996
Externally publishedYes


  • BaO(BaCO)-CaO-CuO system
  • New copper oxycarbonate
  • Phase diagram
  • Susceptibility
  • TEM image

ASJC Scopus subject areas

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


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