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 language | English |
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Pages (from-to) | 169-172 |
Number of pages | 4 |
Journal | Journal of Alloys and Compounds |
Volume | 283 |
Issue number | 1-2 |
DOIs | |
Publication status | Published - 1999 |
Externally published | Yes |
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