The crystal structure of a new crystalline phase in the al-pd-cr alloy system, studied by high-resolution electron microscopy

Wei Sun, Kunio Yubuta, Kenji Hiraga

研究成果: Contribution to journalArticle査読

22 被引用数 (Scopus)

抄録

The structure of a new crystalline phase (O-phase) in an Al72Pd18Cr10alloy, which is closely related to an AI3M11 crystalline phase and the Al-Pd-Mn decagonal quasicrystal, was investigated by electron diffraction and high-resolution electron microscopy. The O-phase has an orthorhombic structure with the lattice parameters a = 1-25 nm, b = 3-28 nm and c = 2-38 nm, and the space group is Pmmn (no. 59). This structure is characterized as a periodic tiling constructed with two types of tiles, a squashed hexagon and a star-shaped pentagon, formed with pentagonal atom columns which are structural units in the Al3Mn crystalline phase and in Al-Pd-Mn decagonal quasicrystal. Structural relationships among the O-phase, the decagonal quasicrystal and some crystalline phases are discussed.

本文言語英語
ページ(範囲)71-80
ページ数10
ジャーナルPhilosophical Magazine B: Physics of Condensed Matter; Statistical Mechanics, Electronic, Optical and Magnetic Properties
71
1
DOI
出版ステータス出版済み - 1 1995
外部発表はい

All Science Journal Classification (ASJC) codes

  • 化学工学(全般)
  • 物理学および天文学(全般)

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