Crystal structure and thermal expansion of Ca2Y2Si2O9

H. Yamane, T. Nagasawa, Y. Murakami, T. Kamata, D. Shindo, M. Shimada, Tadashi Endo

研究成果: Article査読

26 被引用数 (Scopus)

抄録

The crystal structure of Ca2Y2Si2O9 was studied by X-ray and electron diffraction. Statistical atomic site positions were determined in an orthorhombic cell, a = 10.453(3), b = 3.720(2), c = 10.290(2) Å, space group Pnma. The local structure of Si2O7 silicate anions was illustrated from the refined atomic positions. The Ca2Y2Si2O9 structure could be explained by locally disordered arrangement of Y4Al2O9 monoclinic structure. The linear thermal expansion coefficient of Ca2Y2Si2O9 ceramics measured by dilatometry was 9.3 × 10-6 °C-1 from room temperature to 1500°C.

本文言語English
ページ(範囲)845-853
ページ数9
ジャーナルMaterials Research Bulletin
33
6
DOI
出版ステータスPublished - 1998

ASJC Scopus subject areas

  • 材料科学(全般)
  • 凝縮系物理学
  • 材料力学
  • 機械工学

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「Crystal structure and thermal expansion of Ca<sub>2</sub>Y<sub>2</sub>Si<sub>2</sub>O<sub>9</sub>」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

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