Magnesium aluminide

Magnesium aluminide is an intermetallic compound of magnesium and aluminium. Common phases (molecular structures) include the beta phase (Mg₂Al₃) and the gamma phase (Mg₁₇Al₁₂), which both have cubic crystal structures. Magnesium aluminides are important constituents of 5XXX aluminium alloys (aluminium-magnesium) and magnesium-aluminium alloys, determining many of their engineering properties. Due to the advantage of low density and being strong, magnesium aluminide is important for aircraft engines.[1] MgAl has also been investigated for use as a reactant to produce metal hydrides in hydrogen storage technology. Like many intermetallics, MgAl compounds often have unusual stoichiometries with large and complex unit cells.

References

Rayner-Canham, Geoffrey,. Descriptive inorganic chemistry. Overton, Tina, (Sixth ed.). New York, NY. ISBN 978-1-4641-2557-7. OCLC 882867766.CS1 maint: extra punctuation (link) CS1 maint: multiple names: authors list (link)

D. Singh; C. Suryanarayana; L. Mertus & R-H. Chen (2003). "Extended Homogeneity Range of Intermetallic Phases in Mechanically Alloyed Mg-Al Alloys". Intermetallics. 11: 373–376. doi:10.1016/S0966-9795(03)00005-0.

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[1] Rayner-Canham, Geoffrey,. Descriptive inorganic chemistry. Overton, Tina, (Sixth ed.). New York, NY. ISBN 978-1-4641-2557-7. OCLC 882867766.CS1 maint: extra punctuation (link) CS1 maint: multiple names: authors list (link)