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

S. Samuha; V. Uvarov; L. Meshi

doi:10.1524/zkri.2013.1557

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

S. Samuha, V. Uvarov, L. Meshi

Department of Materials Engineering

Research output: Contribution to journal › Article › peer-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 language	English
Pages (from-to)	59-62
Number of pages	4
Journal	Zeitschfrift fur Kristallographie
Volume	228
Issue number	1
DOIs	https://doi.org/10.1524/zkri.2013.1557
State	Published - 1 Jan 2013

Keywords

Intermetallic
Precession Electron Diffraction
Structure characterization

ASJC Scopus subject areas

General Materials Science
Condensed Matter Physics
Inorganic Chemistry

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title = "Study of ternary complex Al - Mg - Ag intermetallides using Precession Electron Diffraction",

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).",

keywords = "Intermetallic, Precession Electron Diffraction, Structure characterization",

author = "S. Samuha and V. Uvarov and L. Meshi",

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.",

year = "2013",

month = jan,

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doi = "10.1524/zkri.2013.1557",

language = "English",

volume = "228",

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journal = "Zeitschfrift fur Kristallographie",

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T1 - Study of ternary complex Al - Mg - Ag intermetallides using Precession Electron Diffraction

AU - Samuha, S.

AU - Uvarov, V.

AU - Meshi, L.

N1 - 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.

PY - 2013/1/1

Y1 - 2013/1/1

N2 - 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).

AB - 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).

KW - Intermetallic

KW - Precession Electron Diffraction

KW - Structure characterization

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DO - 10.1524/zkri.2013.1557

M3 - Article

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SP - 59

EP - 62

JO - Zeitschfrift fur Kristallographie

JF - Zeitschfrift fur Kristallographie

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

Abstract

Keywords

ASJC Scopus subject areas

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