Phase transition of Ca2-xSmxMnO4 (x < 0.5)

J. Takahashi, T. Kikuchi, H. Satoh, N. Kamegashira

研究成果: Article

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The phase transition of Ca2-xSmxMnO4 (x < 0.5) was investigated by low and high temperature X-ray diffractometry and thermal analysis. Depending on the Sm content, the solid solutions were classified into the tetragonal (0 ≤ x ≤ 0.3) and orthorhombic (0.3 < x < 0.5) phases at room temperature. As the temperature decreases, a structural sequence of high temperature tetragonal-low temperature orthorhombic-low temperature tetragonal phases was found to occur for the solid solution at x = 0.3. For x = 0.2, a new type of orthorhombic phase with a distortion along the [100] direction of the tetragonal phase was found below 240 K. A phase diagram for this system is proposed.

元の言語English
ページ(範囲)96-98
ページ数3
ジャーナルJournal of Alloys and Compounds
192
発行部数1-2
DOI
出版物ステータスPublished - 1993 2 23
外部発表Yes

ASJC Scopus subject areas

  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry

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