Study of ternary complex Al - Mg - Ag intermetallides using Precession Electron Diffraction

S. Samuha, V. Uvarov, L. Meshi

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

Three ternary intermetallic phases were revealed in Mg-20 at%Al - 20 at%Ag alloy: Mg59Al34Ag7 (body-centered cubic, a = 10.2A°, probably isotypical to Mg17Al12 phase); Mg62Al11Ag27 (body centered cubic, a = 14.5A°) and new Mg19Al13Ag6 compound. The geometry and the symmetry of the unit cell of these phases were investigated by electron diffraction methods. It was found that the structure of the new Mg 19Al13Ag6 phase belongs to the orthorhombic crystal system with lattice parameters of a = 8.87, b = 16.48 and c = 19.48A°. The space group was evaluated by Precession Electron Diffraction technique in "descan-off" mode as Pbcm (No. 57).

Original languageEnglish
Pages (from-to)59-62
Number of pages4
JournalZeitschfrift fur Kristallographie
Volume228
Issue number1
DOIs
StatePublished - Jan 2013
Externally publishedYes

Bibliographical note

Funding Information:
Acknowledgements. This research was supported by the German-Israel Foundation for scientific research and development (GIF), young GIF grant no. 2250-2081.10/2009. The authors would like to thank Dr. A. Venkert for the preparation of investigated alloy.

Keywords

  • Intermetallic
  • Precession Electron Diffraction
  • Structure characterization

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