Hexagonal superstructures in the Zn-Mg-rare-earth alloys

E. Abe, H. Takakura, A. Singh, A. P. Tsai

Research output: Contribution to journalArticlepeer-review

45 Citations (Scopus)

Abstract

We show that three types of hexagonal Zn-Mg-rare-earth (RE) ternary compound are formed in the vicinity of Zn6Mg3RE1. An electron diffraction study revealed that these phases are related with a lattice parameters by a ratio 3:5:7 but with approximately the same c parameters. A preliminary structural model for the phase with medium a parameter has been proposed by high-resolution electron microscopy, based on the structures of the other two phases recently determined. It is shown that the two-dimensional hexagonal superstructures can be described by two kinds of Zn-Mg clusters A and B, linked by RE atoms.

Original languageEnglish
Pages (from-to)169-172
Number of pages4
JournalJournal of Alloys and Compounds
Volume283
Issue number1-2
DOIs
Publication statusPublished - 1999 Jan 1
Externally publishedYes

Keywords

  • Atomic cluster
  • HREM
  • Intermetallic phases
  • Superstructure
  • Zn-Mg-rare-earth alloys

ASJC Scopus subject areas

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

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