Abstract: A substantially amorphous aluminum/magnesium alloy optionally containing up to about ten atom percent calcium. The alloy contains from about 45 to about 75 atom percent aluminum and from about 25 to about 50 atom percent magnesium.

Abstract: A process for preparing a substantially amorphous metal alloy body from substantially crystalline mixed elemental metal powders is disclosed. The process for producing the mixed elemental metal powders comprises the step of (1) entraining vapors of at least a first metal and a second metal, the two metals having a negative heat of mixing when combined, in separate heated inert gas streams; (2) cooling each inert gas stream adiabatically by passing it through a nozzle, to produce elemental metal powder aerosols; (3) mixing the inert gas streams to produce mixed elemental metal powder aerosols; and (4) collecting the mixed elemental metal powder aerosols to form mixed elemental powders. The powders can then be compacted to form a compacted body and the compacted body thermally reacted under reaction conditions sufficient to form the substantially amorphous metal alloy body.