Structural variations of ScRh3Bx (x = 0-1) phase studied by transmission electron microscopy

Kunio Yubuta, Akiko Nomura, Kazuo Nakajima, Toetsu Shishido

研究成果: Article査読

11 被引用数 (Scopus)

抄録

We have examined structural ordering of a Cu3Au-type compound ScRh3Bx (x = 0-1) by electron diffraction and high-resolution transmission electron microscopy (HRTEM). The electron diffraction patterns reveal 1/2 1/2 1/2-type superlattice reflections in a B content range of 0.5 ≤ x ≤ 0.75, where an anomalous drop of hardness was observed. This behavior is quite similar in a CeRh3Bx phase. Conclusively, ordering of B atoms in Rh-octahedra followed by the appearance of the long-ranged modulated structure could lead to the anomalous behavior of hardness in ScRh3Bx. The observed HRTEM image of ScRh3B0.5 and ScRh3B0.75 taken with a diffraction pattern showing the superlattice reflections along the [0 1 1] direction shows a domain structure. The superlattice is due to vacancy ordering.

本文言語English
ページ(範囲)341-346
ページ数6
ジャーナルJournal of Alloys and Compounds
471
1-2
DOI
出版ステータスPublished - 2009 3 5

ASJC Scopus subject areas

  • 材料力学
  • 機械工学
  • 金属および合金
  • 材料化学

フィンガープリント

「Structural variations of ScRh<sub>3</sub>B<sub>x</sub> (x = 0-1) phase studied by transmission electron microscopy」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。

引用スタイル